Doubt with query that returns unnecessary reocrds

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• Need help to write a MySQL query that returns only the peer matching records

  Because I don't know how to explain it easily, I use the table below as an example.
  
  I want to create a MySQL query that returns only the records that match counterparts where 'col1' = 'ABC '.
  
  Notice the ' ABC / GHI' record does not have a Counter-match ' GHI / ABC' record. This record must not be returned because there is no Counter-Party correspondent. With this table, the ' ABC / GHI' record should be the one returned in the query.
  
  How can I create a query that will do it?
  
  
  ID | col1 | col2
  --------------------
  1. ABC | DEF
  2. DEF | ABC
  3. ABC | IGS
  4. DEF | IGS
  5. IGS | DEF
  
  
  * Please let me know if you have no idea of what I'm trying to explain.

  I wanted to just the results where col1 = ABC, but I already got the answer I needed on another forum. Thank you anyway.

  SELECT a.col1,
  a.col2
  FROM table_name AS a
  LEFT OUTER
  Table_name JOIN b
  ON b.col1 = a.col2
  AND a.col1 = b.col2
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• Query that returns number 1 - Add additional columns based on percentages

  I have a query that returns a large number.  The return value will always be a single field (a column, a line, a single value).

  I need to have also three other columns in the return of this request: one that returns a number that is 50% of the original number, one that returns a number that is 75% of the original number, and one that is double the original number.  How is that possible?  If anyone can point me to examples, it would be a great help.  I got the results mixed by searching, so I'm not sure good practices.

  Thank you for the input in advance.

  Hello

  Whenever you have a question, please post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and the accurate results you want from this data, so that people who want to help you can recreate the problem and test their ideas.

  Explain, using specific examples, how you get these results from these data.

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  Always say what version of Oracle you are using (for example, 11.2.0.2.0).

  See the FAQ forum: Re: 2. How can I ask a question on the forums?

  I'm not sure that understand the question.

  If x is a number, then

  .50 * x is 50% of this number,

  .75 * x is 75% of that number, and

  2 * x is to double this figure.

  You can get them all in the same query, if you want to.  For example:

  SELECT ename

  sal

  .50 * sal AS p_50

  .75 * sal AS p_75

  2 * sal AS dbl

  FROM scott.emp;

  Output:

  ENAME SAL P_50 P_75 DBL

  ---------- ---------- ---------- ---------- ----------

  SMITH, 800, 400, 600, 1600

  1600 800 1200 3200 ALLEN

  1250 625 WARD 937,5 2500

  JONES 2975 1487.5 2231,25 5950

  1250 625 MARTIN 937,5 2500

  2850 1425 BLAKE 2137,5 5700

  2450 1225 CLARK 1837,5 4900

  3000 1500 2250 6000 SCOTT

  KING 5000 2500 3750 10000

  1500 750 1125 3000 TURNER

  1100 550 825 2200 ADAMS

  JAMES 950 475 712,5 1900

  FORD 3000 1500 2250 6000

  1300 650 975 2600 MILLER

  Is that what you ask?

• I need a query that returns the average amount of characters from text colum in MS SQL.

  I need a query that returns the average amount of characters from text colum in MS SQL.
  
  Could someone show me how?

  Sorting, I need of the

  DATALENGTH

  function

• SQL QUERY THAT RETURNS THE PL/SQL

  Hello

  I'm putting in 4.2 below apex

  DECLARE

  date of frdate: =: P22_FROMDATE;

  date date: =: P22_TODATE;

  l_date1 varchar2 (11): = to_char(frdate,'dd-mon-yyyy');

  l_date2 varchar2 (11): = to_char(todate,'dd-mon-yyyy');

  v_sql varchar2 (32000);

  v_Name varchar2 (4000): = months_name (frdate, todate);

  char (1) of the v1: = q "[']";

  number of lbr1 (6): =: P22_FROMBRANCH;

  number of LBR2 (6): =: P22_TOBRANCH;

  number of M1 (6): = 11;

  Start

  v_sql: ='SELECT * FROM (SELECT LBRCODE, PRDACCTID, MN, AVGX FROM (SELECT LBRCODE, PRDACCTID, MN, SUM (BALL) BALL, COUNT (MN) DAYS, ROUND (SUM (BAL) count (MN), 2) AVGX ';))

  v_sql: = v_sql | "FROM (SELECT LBRCODE, PRDACCTID, TO_CHAR (BALDATE,'|)) CHR (39) | ' MM' | CHR (39) |') ' | ' ||'|| CHR (39) | » _'|| CHR (39) |' | ' || «TO_CHAR (BALDATE,'|)» CHR (39) | ' AAAA '. CHR (39) |') MN, BALL ';

  V_SQL: = V_SQL | "(SELECT Q2. LBRCODE, Q2. PRDACCTID, T1. BALDATE, T_OST_NEW (Q2. LBRCODE, Q2. PRDACCTID, T1. BALDATE) BALL ';

  V_SQL: = V_SQL | "FROM (select TO_DATE('||) Chr (39) | l_date1 | Chr (39) | «, » || CHR (39) | ' DD-MON-YYYY ' | CHR (39) |') baldate FROM DUAL Union all the ';

  V_SQL: = V_SQL |' select (TO_DATE('||) Chr (39) | l_date1 | Chr (39) | «, » || CHR (39) | ' DD-MON-YYYY ' | CHR (39) |') + level) double baldate ';

  V_SQL: = V_SQL |' connect by level < = (TO_DATE('||) Chr (39) | l_date2 | Chr (39) | «, » || CHR (39) | ' DD-MON-YYYY ' | CHR (39) |') -TO_DATE('||) Chr (39) | l_date1 | Chr (39) | «, » || CHR (39) | ' Dd-mon-yyyy ' | CHR (39) |')) ) Q1,';

  V_SQL: = V_SQL | "(SELECT LBRCODE,'|) ' (rpad (prdcd, 8,'|)) V1 ||'' || v1 |') || LTRIM (rpad('|| v1 ||) » x'|| V1 | «, 25, » || v1 | » 0' || v1||'),'|| v1 | » x'|| v1 |')) prdacctid OF D009021 WHERE the LBRCODE between ' | : P22_FROMBRANCH |' and ' | : P22_TOBRANCH | "AND moduleinfo =' | TO_NUMBER(:P22_SELECTLIST);

  V_SQL: = V_SQL |') ((Q2)) GROUP BY LBRCODE, PRDACCTID, MN))';

  V_SQL: = V_SQL | "PIVOT (MAX (AVGX) (MN) IN (';))

  V_SQL: = V_SQL | V_NAME;

  V_SQL: = V_SQL |')) ORDER OF LBRCODE, PRDACCTID ';

  RETURN V_SQL;

  END;

  I created all the elements of the required page

  I get the error message like missing expression

  to test, I created a function to return the query, it works very well know to return a query that gives me desired report

  am I missing something?

  Help, please

  HEMU wrote:

  Hello Sir

  Sorry to bother you again

  I tried to use «function that returns colon-delimited topics»

  and I got following error

  unable to determine query headings: ORA-06550: line 1, column 138: PLS-00103: Encountered the symbol ";" when expecting one of the following:  . ( ) , * % & = - + < / > at in is mod remainder not rem =>  <> or != or ~= >= <= <> and or like like2 like4 likec between || multiset member submultiset The symbol ")" was substituted for ";" to continue.
  

  failed to parse SQL query:
  

  can take you a look at page901 once again please and a function named months_namex

  is it feasible that I'm looking for?

  The immediate cause of this error is simply incorrect report headings function call syntax:

  return months_namex(to_date(:p901_fromdate,'dd-mon-yyyy'),to_date(:p901_todate,'dd-mon-yyyy')

  This should be:

  return months_namex(to_date(:p901_fromdate,'dd-mon-yyyy'),to_date(:p901_todate,'dd-mon-yyyy'));

  However there is no months_namex function defined in the workspace.

• Help turn the query that returns single return system

  Hello, I have two tables, readings, and values. Values have a foreign key to the readings.
  

  create table readings 
  (
  id number primary key,
  point number,
  datereading date
  );
  
  create table reading_values
  (
  id number primary key,
  counter_nr number,
  point number,
  reading_id number,
  datereading date,
  CONSTRAINT fk_reading
  FOREIGN KEY (reading_id)
  REFERENCES readings (id)
  );

  The point and datereadings columns have the same value of related rows.

  insert into readings values (1, 1234, to_date('20100622 12:12', 'yyyymmdd HH24:MI'));
  insert into reading_values values (1, 0, 1234, 1, to_date('20100622 12:12', 'yyyymmdd HH24:MI')); --row1
  insert into reading_values values (2, 1, 1234, 1, to_date('20100622 12:12', 'yyyymmdd HH24:MI')); --row2
  
  insert into readings values (2, 1234, to_date('20100623 12:12', 'yyyymmdd HH24:MI'));
  insert into reading_values values (3, 0, 1234, 2, to_date('20100623 12:12', 'yyyymmdd HH24:MI')); --row3
  insert into reading_values values (4, 1, 1234, 2, to_date('20100623 12:12', 'yyyymmdd HH24:MI')); --row4
  
  insert into readings values (3, 1111, to_date('20100621 12:12', 'yyyymmdd HH24:MI'));
  insert into reading_values values (5, 0, 1111, 3, to_date('20100623 12:12', 'yyyymmdd HH24:MI')); --row5

  Now I have the procedure which the entry: p_point and p_date.

  select * from reading_values rv, 
  (select * from (select id, datereading
  from readings where datereading < p_date and point = p_point
   order by datereading desc) where rownum <= 1) t where rv.reading_id = t.id

  so I want the previous reading_values (in time based on p_date) for a certain point p_date. I hope this makes sense?
  Example:

  select * from reading_values rv, 
  (select * from (select id, datereading
  from readings where datereading < to_date('20100624 12:12', 'yyyymmdd HH24:MI') and point = 1234
   order by datereading desc) where rownum <= 1) t where rv.reading_id = t.id
  
  returns row 3 and 4

  Now, what I want to do, is replace p_point and p_date with two collections. For example: p_points = [1234, 1111] p_dates = [20100622 15:12, 20100624 12:12]
  Here, I want to have the previous reading_values by point = 1234 and datereading < 20100622 order 15:12 by datereading (where rownum < = 1).
  
  and also reading_values by point = 1111 and datereading < 20100624 order 12:12 by datereading (where rownum < = 1).
  
  This should return line1, line2 and row5...
  
  So far I came up with this. But I can't be sure that it is correct. And the performance seems to be horrible (cost 88, 13 recursive calls, 155 becomes uniform) for a query with 2 entry points and 2 dates compared to the original to just a single point query and the date of entry (cost 13, 1 recursive call and gets 14 coherent).
  

  Select rv.* from (SELECT r.id
        FROM    Readings r, 
        (select rownum rn1, t1.id from table1 t1 order by id) t1, -- input parameter1 (point collection)
        (select rownum rn2, t2.date_now from table1 t2 order by id) t2  -- input parameter 2 (date collection)
        WHERE  r.point = t1.id
            AND     r.datereading = (SELECT  max(r2.datereading)
            FROM   Readings r2
              WHERE   r2.point = t1.id
              AND     r2.datereading < t2.date_now AND rn1 = rn2)
      ) r, Reading_Values rv where r.id= rv.reading_id;

  code for creating table 1 that I used instead of collections of entry:

  create table table1
  (
   id number not null primary key,
   date_now date not null
  );
  insert into table1 values (1234, to_date('20100622 15:12', 'yyyymmdd HH24:MI'));
  insert into table1 values (1111, to_date('20100624 12:12', 'yyyymmdd HH24:MI'));

  Hope someone can help me on my way :) Please ask if something is unclear or strange! Thank you!
  
  Published by: KarlTrumstedt on 23-jun-2010 06:20

  Try this

  SELECT RV.ID, RV.COUNTER_NR, RV.POINT, RV.READING_ID, RV.DATEREADING
  FROM (
      SELECT (    SELECT LAST_VALUE(RE.ID) OVER
                       (PARTITION BY RE.POINT ORDER BY RE.DATEREADING)
                  FROM READINGS RE
                  WHERE RE.DATEREADING < T1.DATE_NOW AND RE.POINT = T1.ID
              ) ID,
              T1.ID POINT,
              T1.DATE_NOW
      FROM TABLE1 T1
  ) X
  JOIN READING_VALUES RV
  ON (X.ID = RV.READING_ID AND X.POINT = RV.POINT)
  ;
  

• Query that returns only certain fields in Java

  Currently I use a filter that identifies certain keys, then get all the keys and get a unique value of each object. The rest of the object is important enough. I've seen references to the passage on the ability to do it, using CohQL, but I can't run Java.
  
  Basically, I want to do: "select the"Cache"box where key ="asdf '" I just want back the specific 'field' rather than the entire object. How can I do this?
  
  Thank you.

  Hi user13279246,

  You can do this by using the ReducerAggregator. Your code would look like:

  Filter filter = QueryHelper.createFilter(...);
  ValueExtractor extractor = new ReflectionExtractor("isReadOnly");
  Map mapResult = cache.aggregate(filter, new ReducerAggregator(extractor));
  

  The mapResult will be indexed by the actual cache keys, but the values will be extracted Boolean property.

  If you need to return a number of "columns", you would use the MultiExtractor instead. In this case, each value in the returned map would be a list of corresponding extracted properties.

  Kind regards
  Gene

  Published by: ggleyzer on February 15, 2011 16:41

• Query that returns several generic criteria using as and in

  Hi there, try to do something like this:
  
  Select * from tablename
  Where columnname as 5% ' or as 8% ' or like 12% '
  
  without the help OR... so in this big:
  
  Select * from tablename
  Where columnname like IN (5% ", 8%, 12%" ")
  
  In MS Sql, I can do something like this:
  
  SELECT * from tablename t
  Where exists (select val FROM dbo.fn_String_To_Table (25, 05', '', 0))
  ATA columname WHERE AS val + '%')
  
  Where dbo.fn_String_To_Table converts the array of strings in a table.
  
  Any suggestions?
  
  Thank you very much.

  Samir says:

  where the comma-delimited string variable?

  Use your imagination :):

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    where regexp_like(t.column_name,'^(' || replace(starts_with_scv,',','|') || ')')
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  SY.

• Looping on a method that returns a query

  Hello
  
  I have a method that returns a query, I convey in this method, an identification number, the query uses in where clause. Now I have another query that returns a list of identification numbers that I have to loop through the appellant the first method and passing in the ID number, for example
  
  methodA
  
  Browse the methodA results
  Call methodB passing methodA.ID
  results of methodB
  close the loop
  
  now, the problem I have is that methodB returns a query and I want to be able to return the results of methodB as a unique query structure. I don't know how many times I will do a loop through the results of methodA, maybe twice, he could by ten times. Thus, the results of calling methodB could be very large.
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• XMLForest with multiple subqueries return not some tags

  Hello

  PL/SQL in Oracle 11.2.0.1.0 (stored procedure).

  I am using this slider (I only show a part of the cursor - hope that is not a problem):

  XMLForest)
  XMLForest)
  (SELECT XMLConcat)
  XMLForest (brd.service_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:Insemination",
  XMLElement ("ns3:Bull",
  XMLElement("ns3:RegistrationAnimalNumber", brd.sire_reg_id)))
  OF cmi_breedings brd
  WHERE brd.anm_id = anm.id
  AND brd.sire_reg_id IS NOT NULL
  AND brd.service_date = (SELECT MAX (brd2.service_date)
  OF cmi_breedings brd2
  WHERE brd2.anm_id = brd.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (lct.start_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:Parturition",
  XMLElement("ns3:LactationNumber", lct.lact_no)))
  OF cmi_lactations lct
  WHERE lct.anm_id = anm.id
  AND lct.start_date = (SELECT MAX (lct2.start_date)
  OF cmi_lactations lct2
  WHERE lct2.anm_id = lct.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (lct.end_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:DryOff")))
  OF cmi_lactations lct
  WHERE lct.anm_id = anm.id
  AND lct.end_date = (SELECT MAX (lct2.end_date)
  OF cmi_lactations lct2
  WHERE lct2.anm_id = lct.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (prg.prgncy_chk_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:PregnancyCheck",
  XMLElement ("ns3:PregnancyCheckResult", DECODE (prg.prgncy_ind, '1', 'F', 'E')))
  OF cmi_pregnancies prg
  WHERE prg.anm_id = anm.id
  AND prg.prgncy_chk_date = (SELECT MAX (prg2.prgncy_chk_date)
  OF prg2 cmi_pregnancies
  WHERE prg2.anm_id = prg.anm_id)) AS 'AnimalEvent '.
  ) AS "AnimalEvents".
  )

  which means (as expected and works perfectly):

  < AnimalEvents >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 09 - 08 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Insemination >
  < ns3:Bull >
  < ns3:RegistrationAnimalNumber > 5401809 < / ns3:RegistrationAnimalNumber >
  < / ns3:Bull >
  < / ns3:Insemination >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 05 - 10 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Parturition >
  < ns3:LactationNumber > 8 < / ns3:LactationNumber >
  < / ns3:Parturition >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1998 - 02 - 02 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:DryOff / >
  < / AnimalEventType >
  < / AnimalEvent >
  < / AnimalEvents >

  However, if I wanted to return several rows for an animal insemination event by changing the query like this:

  
  XMLForest)
  XMLForest)
  (SELECT XMLConcat)
  XMLForest (brd.service_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:Insemination",
  XMLElement ("ns3:Bull",
  XMLElement("ns3:RegistrationAnimalNumber", brd.sire_reg_id)))
  OF cmi_breedings brd
  WHERE brd.anm_id = anm.id
  AND brd.sire_reg_id IS NOT NULL
  AND brd.service_date > (SELECT MIN (brd2.service_date) <-what IS THE LINE has BEEN CHANGED)
  OF cmi_breedings brd2
  WHERE brd2.anm_id = brd.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (lct.start_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:Parturition",
  XMLElement("ns3:LactationNumber", lct.lact_no)))
  OF cmi_lactations lct
  WHERE lct.anm_id = anm.id
  AND lct.start_date = (SELECT MAX (lct2.start_date)
  OF cmi_lactations lct2
  WHERE lct2.anm_id = lct.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (lct.end_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:DryOff")))
  OF cmi_lactations lct
  WHERE lct.anm_id = anm.id
  AND lct.end_date = (SELECT MAX (lct2.end_date)
  OF cmi_lactations lct2
  WHERE lct2.anm_id = lct.anm_id)) AS "AnimalEvent."
  (SELECT XMLConcat)
  XMLForest (prg.prgncy_chk_date AS "ns3:BeginDate",
  'INF' AS 'ns3:ActionCode'),
  XMLElement ("AnimalEventType",
  XMLElement ("ns3:PregnancyCheck",
  XMLElement ("ns3:PregnancyCheckResult", DECODE (prg.prgncy_ind, '1', 'F', 'E')))
  OF cmi_pregnancies prg
  WHERE prg.anm_id = anm.id
  AND prg.prgncy_chk_date = (SELECT MAX (prg2.prgncy_chk_date)
  OF prg2 cmi_pregnancies
  WHERE prg2.anm_id = prg.anm_id)) AS 'AnimalEvent '.
  ) AS "AnimalEvents".
  )

  I get an error message on several rows returned (and that's what I want to be returned in some cases, more than one record).

  For example, I would look like this (notice that I have an extra "insemination" in the example below):

  < AnimalEvents >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 09 - 08 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Insemination >
  < ns3:Bull >
  < ns3:RegistrationAnimalNumber > 5401809 < / ns3:RegistrationAnimalNumber >
  < / ns3:Bull >
  < / ns3:Insemination >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1998 - 09 - 08 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Insemination >
  < ns3:Bull >
  < ns3:RegistrationAnimalNumber > 2221809 < / ns3:RegistrationAnimalNumber >
  < / ns3:Bull >
  < / ns3:Insemination >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 05 - 10 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Parturition >
  < ns3:LactationNumber > 8 < / ns3:LactationNumber >
  < / ns3:Parturition >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1998 - 02 - 02 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:DryOff / >
  < / AnimalEventType >
  < / AnimalEvent >
  < / AnimalEvents >
  
  I tried to use the XMLAgg() in the part of the query that returns the inseminations, but it comes down to something like this (I've lost my < Animalevent > for the second record of the insemination, I want it to look to the example above):

  < AnimalEvents >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 09 - 08 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Insemination >
  < ns3:Bull >
  < ns3:RegistrationAnimalNumber > 5401809 < / ns3:RegistrationAnimalNumber >
  < / ns3:Bull >
  < / ns3:Insemination >
  < / AnimalEventType >
  < ns3:BeginDate > 1998 - 09 - 08 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Insemination >
  < ns3:Bull >
  < ns3:RegistrationAnimalNumber > 2221809 < / ns3:RegistrationAnimalNumber >
  < / ns3:Bull >
  < / ns3:Insemination >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1997 - 05 - 10 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:Parturition >
  < ns3:LactationNumber > 8 < / ns3:LactationNumber >
  < / ns3:Parturition >
  < / AnimalEventType >
  < / AnimalEvent >
  < AnimalEvent >
  < ns3:BeginDate > 1998 - 02 - 02 < / ns3:BeginDate >
  < ns3:ActionCode > INF < / ns3:ActionCode >
  < AnimalEventType >
  < ns3:DryOff / >
  < / AnimalEventType >
  < / AnimalEvent >
  < / AnimalEvents >

  I tried different combinations of XMLAgg() for the multiple rows returned, and he allowed too lines returned the error to go away, but at the expense of the tag being AnimalEvent to be reproduced for the same animals event or be there only once when there are several animal events.  I know I'm close to the solution and I bet it's very simple, but I don't get it.

  The only "rules" that I need are:

  1. the AnimalEvents tag must appear only once and only as it is at least an AnimalEvent.

  2. no blank/empty tag should appear.  For example, if there is no AnimalEvent tag while there should be no tag AnimalEvents.

  3. even if I'm trying to select the records of several "insemination" only so far for this particular test, all 4 potential AnimalEvents ("Insémination", "Parturition", 'DryOff' and 'PregnancyCheck') will be rescheduled to select multiple records later.

  4. each animal individual event ("Insemination", "Parturition", 'DryOff', 'PregnancyCheck') should be locked up by the AnimalEvent tag.

  I don't know if I'm missing any other details?

  Help, please!  Thank you.

  I guess you wrote that because I used it somewhere, that seems like a bad idea

  I understand why you used, and why most of the people use it in this kind of situation, but as see you it clearly now, it is not suitable more to what you aim at. Where my suggestion while trying not to use in the first place.

  In addition, XMLForest is just a shortcut, in fact, a combination of a CASE statement and XMLElement that Oracle develops during analysis.

  In some cases, where the subquery caching is not possible for example, that made a request using XMLForest performs badly if the operands are complex because they are used twice during the assessment.

  Here's a simple example:

  Connected to:
  Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> set serveroutput on
  SQL>
  SQL> create or replace function get_data (p_input in number) return number is
    2  begin
    3    dbms_output.put_line('You called me!');
    4    return p_input;
    5  end;
    6  /
  
  Function created.
  
  SQL> select xmlserialize(content xmlforest(get_data(1) as "test"))
    2  from dual;
  
  XMLSERIALIZE(CONTENTXMLFOREST(GET_DATA(1)AS"TEST"))
  --------------------------------------------------------------------------------
  1
  
  You called me!
  You called me!
  

  The function is called twice, because Oracle rewrites the XMLForest call to:

  BOX WHEN get_data (1) IS NOT NULL THEN XMLElement ('test', get_data (1)) END

  Of course, the function can be deterministic, but this isn't the point here.

  In your case, since you are with subqueries, those are probably cached and executed only once, but I think it is useful to know the internal mechanisms, however.

  Back to your question, how about something like this:

  XMLForest(
    -- concat the four possible events
    XMLConcat(
      -- Insemination
      (
        SELECT CASE WHEN count(*) != 0
               THEN XMLAgg(
                      XMLElement("AnimalEvent",
                         XMLForest(brd.service_date AS "ns3:BeginDate",
                                   'INF'            AS "ns3:ActionCode"),
                         XMLElement("AnimalEventType",
                            XMLElement("ns3:Insemination",
                               XMLElement("ns3:Bull",
                                  XMLElement("ns3:RegistrationAnimalNumber", brd.sire_reg_id))))
                      )
                    )
               END
        FROM   cmi_breedings brd
        WHERE  brd.anm_id       = anm.id
        AND    brd.sire_reg_id  IS NOT NULL
        AND    brd.service_date > (SELECT MIN(brd2.service_date)
                                   FROM   cmi_breedings brd2
                                   WHERE  brd2.anm_id = brd.anm_id)
      ),
      -- Parturition
      (
        SELECT CASE WHEN count(*) != 0
               THEN XMLAgg(
                      XMLElement("AnimalEvent",
                        XMLForest(lct.start_date AS "ns3:BeginDate",
                                  'INF'          AS "ns3:ActionCode"),
                        XMLElement("AnimalEventType",
                           XMLElement("ns3:Parturition",
                              XMLElement("ns3:LactationNumber", lct.lact_no)))
                      )
                    )
               END
        FROM   cmi_lactations lct
        WHERE  lct.anm_id     = anm.id
        AND    lct.start_date > (SELECT MIN(lct2.start_date)
                                 FROM   cmi_lactations lct2
                                 WHERE  lct2.anm_id = lct.anm_id)
      ),
      -- DryOff
      (
        SELECT CASE WHEN count(*) != 0
               THEN XMLAgg(
                      XMLElement("AnimalEvent",
                        XMLForest(lct.end_date AS "ns3:BeginDate",
                                  'INF'        AS "ns3:ActionCode"),
                        XMLElement("AnimalEventType",
                           XMLElement("ns3:DryOff"))
                      )
                    )
               END
        FROM   cmi_lactations lct
        WHERE  lct.anm_id   = anm.id
        AND    lct.end_date > (SELECT MIN(lct2.end_date)
                               FROM   cmi_lactations lct2
                               WHERE  lct2.anm_id = lct.anm_id)
      ),
      -- PregnancyCheck
      (
        SELECT CASE WHEN count(*) != 0
               THEN XMLAgg(
                      XMLElement("AnimalEvent",
                        XMLForest(prg.prgncy_chk_date AS "ns3:BeginDate",
                                  'INF'               AS "ns3:ActionCode"),
                        XMLElement("AnimalEventType",
                           XMLElement("ns3:PregnancyCheck",
                              XMLElement("ns3:PregnancyCheckResult", DECODE(prg.prgncy_ind, '1', 'F', 'E'))))
                      )
                    )
               END
        FROM   cmi_pregnancies prg
        WHERE  prg.anm_id          = anm.id
        AND    prg.prgncy_chk_date > (SELECT MIN(prg2.prgncy_chk_date)
                                      FROM   cmi_pregnancies prg2
                                      WHERE  prg2.anm_id = prg.anm_id)
      )
    ) AS "AnimalEvents"
  )
  

  Here, the AnimalEvent tag is included directly in the subquery, before the aggregation, removing the need for deeper XMLConcat in the process.

  If the subquery returns no rows, no tag is generated through the CASE statement.

• Selection of a function that returns a sys refcursor or alternative

  I have a query that returns a result set of three columns, namely the SSN, the PAID_YEAR and the PAID_TOTAL. This query, I can:

  1. Create a view and then question him.
  2. Create a function result set and return

  If I go the first way, that a simple request like this takes more than 20 seconds:

  SELECT PAID_YEAR,PAID_TOTAL FROM VIEW_1 WHERE SSN=12345678912882;

  I know it's because when I query a view engine first brings all the rows in the view and then filters the lines for the criteria provided.

  If I go the second way I can send only a parameter and make the engine look for only the rows that match the condition and the Recordset. But I don't know how then SELECT this result set returned. I took a look at the tables in pipeline, but do not understand how to their advantage. So my final question is if it is somehow possible to select from the result set returned by a function like this:

  SELECT * FROM FUNCTION_1(12132323232).

  If Yes, then how, if not, what would be another way?

  I know it's because when I query a view engine first brings all the rows in the view and then filters the lines for the criteria provided.

  No - you don't "know that" because it is not true. Just check out the plan of the command explain to yourself. Oracle can always use appropriate indexes so that only the needed rows are returned.

  So my final question is if it is somehow possible to select from the result set returned by a function like this:

  SELECT * FROM FUNCTION_1(12132323232).
  

  No - you can't do it like that. You must use the TABLE function to process the result of the function defined in a table:

  'SELECT * FROM TABLE(FUNCTION_1(12132323232)).

  -type to match record emp
  create or replace type emp_scalar_type as an object
  (EMPNO NUMBER 4,
  ENAME VARCHAR2 (10),
  USE VARCHAR2 (9).
  MGR NUMBER 4,
  HIREDATE DATE,
  NUMBER OF SAL (7, 2)
  NUMBER OF COMM (7, 2)
  DEPTNO NUMBER (2)
  )
  /

  -records of the emp table
  create or replace type emp_table_type to table of emp_scalar_type
  /

  -function of pipelined

  create or replace function get_emp (p_deptno number)
  return emp_table_type
  PIPELINED
  as
  TYPE EmpCurTyp IS REF CURSOR RETURN emp % ROWTYPE;
  emp_cv EmpCurTyp;
  l_rec emp % rowtype;
  Start
  Open emp_cv SELECT * from emp where deptno = p_deptno;
  loop
  extract the emp_cv in l_rec;
  When the output (emp_cv % notfound);
  line of conduct (emp_scalar_type (l_rec.empno, LOWER (l_rec.ename),
  l_rec.job, l_rec.mgr, l_rec.hiredate, l_rec.sal, l_rec.comm, l_rec.deptno));
  end loop;
  return;
  end;
  /
   
  Select * from table (get_emp (20))

• Query to return then 7 dates

  Hello
  
  is it possible to return the next 7 dates just by using a query, for example, I need a query that returns:
  
  Select (I don't know who put here) double
  
  Date
  2012-10-05
  2012-10-06
  2012-10-07
  2012-10-08
  2012-10-09
  2012-10-10
  2012 10-11
  
  If possible, I would like to know if there is a way to pass a date and according to her, the query returns the next 7 dates based on the date... for example:
  
  Select (I don't know who put here) of the double if date > '' 2012-10-15
  
  Date
  2012 10-16
  2012 10-17
  2012 10-18
  2012 10-19
  2012 10-20
  2012 10-21
  2012 10-22
  
  I really appreciate any help
  Thank you

  SQL> select trunc(sysdate) + level - 1 from dual
    2  connect by level <= 7;
  
  TRUNC(SYS
  ---------
  05-OCT-12
  06-OCT-12
  07-OCT-12
  08-OCT-12
  09-OCT-12
  10-OCT-12
  11-OCT-12
  
  7 rows selected.
  
  SQL> select date '2012-10-15' + level - 1 from dual
    2  connect by level <= 7;
  
  DATE'2012
  ---------
  15-OCT-12
  16-OCT-12
  17-OCT-12
  18-OCT-12
  19-OCT-12
  20-OCT-12
  21-OCT-12
  
  7 rows selected.
  

• We can find the size of the query that is extracted in the selection operation?

  Hello
  
  We organize a query select and found that the query is retriving records (rows) 953368. Now is it possible to calculate what this query in terms of size. ??
  
  Could you pls suggest me.
  
  Thank you
  
  Srini...

  >
  We organize a query select and found that the query is retriving records (rows) 953368
  >
  Yes, but how many different tables are involved? The number of columns? What are the data types of the columns?
  If I run a query that returns a single line, it could have 900 columns defined as CHAR (4000), or a column defined as char (1).

  Length of line is therefore somewhere between rows 1 million times 1 byte and 3.6 MB.

  I'm guessing 1 million bytes minimum and 3.6 GB on the high side.

• Query Union returns the correct data x 2

  I have a union query that returns 2 identical lists of data. The data are correct, but I can't work on why it is duplicated. Can anyone help? Thank you.
  
  John
  ****************************
  set linesize 400
  set pagesize 9999
  NewPage Set 1
  wrap off Set
  break off Set
  Set of feedback on
  
  set the file name = CATS_TURBO_all_LiveT
  
  coil & filename
  
  Noprint today new_value DATEVAR COLUMN
  COLUMN case_id FORM 999999 TITLE 'fault '.
  COLUMN product_name FORMAT a10 HEADING 'node '.
  COLUMN priority_type_name format a4 POSITION "PRI."
  Report_date FORMAT of the COLUMN entitled date 'Date of Recvd'
  Restore_date FORMAT of the COLUMN date TOPIC "restored".
  Close_date FORMAT of the COLUMN date POSITION "closed".
  COLUMN assigned_tech_id FORMAT a10 TITLE "GENIUS".
  COLUMN status_type_name FORMAT a3 DIRECTION "FS".
  Header of COLUMN name format a4 'Type '.
  Header of COLUMN Champ_1 format a20 'Exchange '.
  COLUMN sla_name format a12 direction "platform".
  Format COLUMN header generic a4 "Gen."
  COLUMN question_text format a90 titled "Error Description".
  COLUMN note_text a90 format called 'progress '.
  
  TTITLE left 'report ' -.
  Center ' TURBO all flaws (& filename... SQL) "-"
  Jump STRAIGHT DATEVAR-
  Left ' wait > > ' jump 1
  
  Select distinct
  a.case_id "Fault."
  c.product_name
  , decode (f.priority_type_name, 'Low', '4', 'Medium', '3', 'High', '2', 'Urgent', '1') Pri
  , to_char (a.report_date, ' DD/MM/YYYY HH24') "received".
  , to_char (' a.restore_date, ' DD/MM/YYYY HH24 ")"restored ".
  , to_char (a.close_date, ' DD/MM/YYYY HH24') 'closed '.
  , decode (d.name, 'Software', from ", 'Hardware', 'H', 'Firmware', 'F', 'Unknown', 'U', 'General', 'Gen', 'Doc', 'Doc', 'n' and"No. Fault"") 'Type '.
  , decode (b.status_type_name, ' closed - resolved ', '02', 'Pending', '40', 'On Hold - waiting for approval', '41 ', 'pending', '41', 'Wait-Service restored', ' 41', 'lack of training', '44', 'Telesys survey fault', '44') FS
  g.field_1
  e.sla_name
  , decode (a.assigned_tech_id, '10', 'JSMITH', '09', 'MBROWN', '07', 'SCHATTER', '08', 'RSMEED' ', '12', ' SCHOYM') 'B '.
  , to_char (sysdate, 'DD-MON-YYYY HH24') today
  , to_char (translate (dbms_lob.substr(a.question_text,100), CHR (13) |)) CHR (10), CHR)
  question_text 32)))
  , null "Note".
  of oracledb.incident one
  oracledb.status_type b
  c oracledb.item_type
  oracledb.problem_type d
  e oracledb.sla
  oracledb.priority_type f
  oracledb.item g
  oracledb.incident_note h
  where (a.status_type_id = b.status_type_id)
  and (a.product_id = c.product_id)
  and (a.problem_type_id = d.problem_type_id)
  and (a.sla_id = e.sla_id)
  and (a.priority_type_id = f.priority_type_id)
  and (a.product_id = g.product_id)
  and e.sla_name = "TURBO PÉI"
  and g.field_1 not in the (' SysCntl-1', ' SysCntl-2', "TURBO PÉI" "")
  and a.case_id = h.case_id (+)
  and not exists (select case_id from k oracledb.incident_note where k.case_id = a.case_id)
  and a.deleted <>' 1'
  Union
  Select distinct
  a.case_id "Fault."
  c.product_name
  , decode (f.priority_type_name, 'Low', '4', 'Medium', '3', 'High', '2', 'Urgent', '1') Pri
  , to_char (a.report_date, ' DD/MM/YYYY HH24') "received".
  , to_char (' a.restore_date, ' DD/MM/YYYY HH24 ")"restored ".
  , to_char (a.close_date, ' DD/MM/YYYY HH24') 'closed '.
  , decode (d.name, 'Software', from ", 'Hardware', 'H', 'Firmware', 'F', 'Unknown', 'U', 'General', 'Gen', 'Doc', 'Doc', 'n' and"No. Fault"") 'Type '.
  , decode (b.status_type_name, ' closed - resolved ', '02', 'Pending', '40', 'On Hold - waiting for approval', '41 ', 'pending', '41', 'Wait-Service restored', ' 41', 'lack of training', '44', 'Telesys survey fault', '44') FS
  g.field_1
  e.sla_name
  , decode (a.assigned_tech_id, '10', 'JSMITH', '09', 'MBROWN', '07', 'SCHATTER', '08', 'RSMEED' ', '12', ' SCHOYM') 'B '.
  , to_char (sysdate, 'DD-MON-YYYY HH24') today
  , to_char (translate (dbms_lob.substr(a.question_text,100), CHR (13) |)) Chr (10), Chr (32))) question_text
  , to_char (translate (dbms_lob.substr(h.note_text,100), CHR (13) |)) Chr (10), Chr (32))) note_text
  of oracledb.incident one
  oracledb.status_type b
  c oracledb.item_type
  oracledb.problem_type d
  e oracledb.sla
  oracledb.priority_type f
  oracledb.item g
  oracledb.incident_note h
  where (a.status_type_id = b.status_type_id)
  and (a.product_id = c.product_id)
  and (a.problem_type_id = d.problem_type_id)
  and (a.sla_id = e.sla_id)
  and (a.priority_type_id = f.priority_type_id)
  and (a.product_id = g.product_id)
  and e.sla_name = "TURBO PÉI"
  and g.field_1 not in the (' SysCntl-1', ' SysCntl-2', "TURBO PÉI" "")
  and a.case_id = h.case_id
  and h.note_id = (select max (i.note_id)
  oracledb.incident_note I have
  where a.case_id = i.case_id)
  and a.deleted <>' 1'
  order by 1;
  /
  SPOOL OFF
  Clear jump
  output
  
  Published by: user13388553 on 11/24/2010 14:59

  If your code is that you run in the production data splits because you're runnign queries twice.

  from oracledb.incident_note i
  where a.case_id = i.case_id)
  and a.deleted '1'
  order by 1;
  /
  SPOOL OFF
  

  The semicolon after that command by 1 causes the statement to be executed, the slash on the next line causes the reexecute being. Delete one of them.

  John

• How to write a query to return rows with the varchar column that contains even a single occurrence of the characters, such as Ÿ and

  How to write a query to return rows with the varchar column that contains even a single occurrence of the characters, such as Ÿ and

  I have a table whose columns with values such as

  MINNEAŸPOLIS and ¿VV ¿A

  Only the characters that are allowed in this column are alphabets, numbers, spaces, points and supports.

  Please help to write a SQL SELECT with Regexp_like query or any other option.

  Thanks to you all! Under query worked for me. Thank you Frank to explain the concept of hooks inside regexp_like.

  SELECT * FROM testspecial, WHERE REGEXP_LIKE (sampletext, "[^] ^ A - Z ^ a - z ^ 0-9 ^ [^.]") ^ {^} ^]') ;