LESS a matter of query logic

Similar Questions

• Reg: query logic.

  Hi Experts,

  I have a requirement of query which am not able to achieve correctly-

  2 tables like this:

  WITH t1 AS)

  SELECT the 1 id, cm_dt of TO_DATE('04.04.2014','dd.mm.yyyy') OF double UNION ALL

  SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL

  SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL

  Select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt of the double

  )

  t2 AS)

  SELECT the 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, ov 'b', 'a' double UNION ALL nv

  SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy'), 'y', 'x' FROM dual UNION ALL

  SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy'), 'r', 'e' FROM dual UNION ALL

  SELECT the id 2, TO_DATE('15.10.2013','dd.mm.yyyy'), 'x', 'q' FROM dual UNION ALL

  SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy'), 'f', 'b' FROM dual

  )

  My requirement is :

  
  

  Check - 1

  For each ID of "t1", need to check in 't2' If a record exists. If the 'id' doesn't exist, you need to select another table called "table_y". Here, T1.ID = 3

  Check the box - 2

  If the ID exists, for each 'id' and T1. CM_DT - is any record in T2 where (T1.id = T2.id and T1. CM_DT < T2. Take FH_DT) then the OV (old value) of the last record.

  Otherwise, if no such folder i.e. all have T1. CM_DT > T2. FH_DT - take NV (new value) of the first record.

  Expected results :

  1 04.04.2014 b

  2 01.11.2013 q

  2 29.09.2013 r

  3 17.05.2013 < some value from another table >

  My try and try again...

  WITH t1 AS)

  SELECT the 1 id, cm_dt of TO_DATE('04.04.2014','dd.mm.yyyy') OF double UNION ALL

  SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL

  SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL

  Select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt of the double

  )

  t2 AS)

  SELECT the 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, ov 'b', 'a' double UNION ALL nv

  SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy'), 'y', 'x' FROM dual UNION ALL

  SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy'), 'r', 'e' FROM dual UNION ALL

  SELECT the id 2, TO_DATE('15.10.2013','dd.mm.yyyy'), 'x', 'q' FROM dual UNION ALL

  SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy'), 'f', 'b' FROM dual

  )

  ------

  x AS

  (SELECT

  T1.ID, t1.cm_dt, t2.fh_dt, nv, ov,

  ROW_NUMBER() over (PARTITION BY t2.id ORDER BY fh_dt asc) Clotilde,

  MIN (T2.fh_dt) on min_dt (PARTITION BY t2.id),

  Max (T2.fh_dt) on max_dt (PARTITION BY t2.id)

  T1 LEFT JOIN t2 ON (t1.id = t2.id)

  )

  --------

  SELECT distinct

  x.ID, x.cm_dt, x.fh_dt,

  (CASE WHEN cm_dt < = min_dt THEN)

  (SELECT t2.ov FROM t2 WHERE t2.id = AND t2.fh_dt x.id = x.min_dt)

  ON THE OTHER

  (SELECT t2.ov FROM t2 WHERE t2.id = AND t2.fh_dt x.id = x.min_dt)

  Chk1 END)

  X

  ORDER BY id, cm_dt

  Please give some guidance. Help much appreciated.

  -Nordine

  (on Oracle 11.2.0.3.0)

  I think it's something like what you are looking for (if you had provided details of the 'other' table you want to get the values of, then I could have tried integrate this logic in this query, rather than do something using the double table!):

  WITH t1 AS (SELECT 1 id, TO_DATE('04.04.2014','dd.mm.yyyy') cm_dt FROM dual UNION ALL
              SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
              SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
              select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt from dual),
       t2 AS (SELECT 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, 'a' nv,'b' ov FROM dual UNION ALL
              SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy') , 'x','y' FROM dual UNION ALL
              SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy') , 'e','r'  FROM dual UNION ALL
              SELECT 2 id, TO_DATE('15.10.2013','dd.mm.yyyy') , 'q','x' FROM dual UNION ALL
              SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy') , 'b','f' FROM dual),
      res as (select t1.id,
                     t1.cm_dt,
                     t2.fh_dt,
                     t2.nv,
                     t2.ov,
                     min(case when t2.fh_dt > t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt) min_t2_fh_dt_past_cm_dt,
                     max(case when t2.fh_dt < t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt) max_t2_fh_dt_pre_cm_dt,
                     coalesce(max(case when t2.fh_dt < t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt),
                              min(case when t2.fh_dt > t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt)) comparison_dt
              from   t1,
                     t2
              where  t1.id = t2.id (+))
  select id,
         cm_dt,
         case when comparison_dt is null then (select 'zzz' from dual)
              when comparison_dt > cm_dt then ov
              when comparison_dt < cm_dt then nv
         end replacement_value
  from   res
  where  comparison_dt is null
  or     comparison_dt = fh_dt;
  
          ID CM_DT      REPLACEMENT_VALUE
  ---------- ---------- --------------------------------
           1 04/04/2014 b
           2 29/09/2013 r
           2 01/11/2013 q
           3 17/05/2013 zzz
  

• Not able to understand the query logic

  Hello
  
  Please, help me to understand the logic of the query below.
  
  
  I have an emp table having 2 emp_id and mgr_id column.
  
  data from table.
  
  emp_id mgr_id
  1
  2 2
  3 3
  4 5
  5
  6 5
  6 of 7
  6 of 8
  9 7
  
  I run the query below...
  
  Select * from emp where emp_id not in (select mgr_id from emp);
  
  Query giving no line.
  
  I need to know the logic of the query.
  
  Thank you
  HIMS

  Because there are some NULL values in the column so 'IN' mgr_id would fail to compare values such as 1,4,8,9 which are not there in mgr_id with these NULL values.

  Use NVL like below to get the desired results...

   
  
  with t as
  ( select 1 emp_id,  null mgr_id from dual union all
    select 2,2 from dual union all
    select 3,3 from dual union all
    select 4,5 from dual union all
    select 5,null  from dual union all
    select 6,5  from dual union all
    select 7,6  from dual union all
    select 8,6  from dual union all
    select 9,7  from dual
  )
  SELECT *
    FROM t
   WHERE emp_id NOT IN (SELECT nvl(mgr_id,0) from t );
  

  Concerning
  Arun

• SQL Query logic-based price calculation

  Hi Experts,
  
  Here are my records in the table,
  

  SHIPMENT_ID     SHIP_PRICE     SHIP_ADDT_PRICE     PRODUCT_ID     PRODUCT_QTY
  1000          3.95          1          12          2
  1000          0          0          17          1
  1000          6.95          2          11          4
  1001          0          0          17          1
  1001          12.95          1          12          2
  1001          12.95          2          11          4
  1002          0          0          17          1
  1002          20.95          1          12          2
  1002          20.95          2          11          4

  For each consignment:
  I need to get maximum shipprice (no need to examine the product and quantity).
  then to manipulate as follows existing such as specimen
  

  SHIPMENT_ID     SHIP_PRICE     
  1000          (1*6.95)+(4-1*2)     -- Maximum Price Calculation for particular shipment
  1000          (1*0)               -- Other product calculation for same shipment
  1000          (4*2)               -- Other product calculation for same shipment
  1001          (1*12.95)+(4-1*2)     -- Maximum Price Calculation for particular shipment
  1001          (1*0)               -- Other product calculation for same shipment
  1001          (4*2)               -- Other product calculation for same shipment
  1002          (1*20.95)+(4-1*2)     -- Maximum Price Calculation for particular shipment
  1002          (1*0)               -- Other product calculation for same shipment
  1002          (4*2)               -- Other product calculation for same shipment

  Max Shipprice line for each shipment
  (SHIP_PRICE) + (remaining PRODUCT_QTY if PRODUCT_QTY > 1 + SHIP_ADDT_PRICE)
  
  Other than Max shipprice for each shipment
  (PRODUCT_QTY + SHIP_ADDT_PRICE)
  
  I am struggling here with logic how to proceed, any suggestions in connection with that?
  
  Thank you

  with ship as (
  select 1000 SHIPMENT_ID,3.95 SHIP_PRICE,1 SHIP_ADDT_PRICE,12 PRODUCT_ID,2  PRODUCT_QTY from dual union all
  select 1000,            0,              0,                17,           1 from dual union all
  select 1000,            6.95,            2,                 11 ,           4 from dual union all
  select 1001,             0,               0,                 17,            1 from dual union all
  select 1001,             12.95 ,          1 ,                12,            2 from dual union all
  select 1001,             12.95,           2 ,                11,            4 from dual union all
  select 1002,             0 ,              0 ,                17,            1 from dual union all
  select 1002,             20.95 ,          1,                 12 ,           2 from dual union all
  select 1002,             20.95,           2,                 11,            4 from dual )
  
  select shipment_id
        ,
        case when (max_ship = ship_price and max_qty = product_qty) then
        (1* max_ship)+ ((max_qty - min_qty )* max_ship_aat_price)
        else
         (s.PRODUCT_QTY * s.SHIP_ADDT_PRICE)
        end max_price
  from
  (select max(ship_price) over (partition by shipment_id order by shipment_id desc) max_ship,
          max(product_qty) over (partition by shipment_id order by shipment_id desc) max_qty,
          min(product_qty) over (partition by shipment_id order by shipment_id desc) min_qty,
          max(ship_addt_price) over (partition by shipment_id order by shipment_id desc) max_ship_aat_price,
          s.shipment_id,s.SHIP_PRICE,s.SHIP_ADDT_PRICE,s.PRODUCT_ID,s.PRODUCT_QTY
      from ship s)s
  order by 1,2 desc   
  

  What do you expect?

• Query logic

  TABLE A

  ========

  Q_ID

  1

  2

  3

  4

  5

  6

  TABLE B

  =======

  Q_ID Q_NAME

  1 INS

  2 LED

  UPD 3

  INS 4

  5 LED

  UPD 66

  44 INS

  55 LED

  UPD 66

  Result

  ======

  Need to update the Table A Qid WITH Max Q_ID in table B.

  Basically to maximize A QID of table based on the Table B Q_ID

  TABLE A

  ========

  Q_ID

  44

  55

  66

  44

  55

  66

  update from table_a a

  set q_id =)

  with t as)

  Select b.q_id,

  Max (b.Q_ID) on max_q_id (b.q_name score)

  of table_b b

  When status = 'A '.

  )

  Select t.max_q_id

  t

  where t.q_id = a.q_id

  )

  where q_id in)

  Select b.q_id

  of table_b b

  When status = 'A '.

  )

  /

  SY.

• Need help with the query logic

  I have 2 tables.
  
  Table Tb1:
  THE PLAN_ID PARENT_PLAN_ID ARGUMENT
  Value null P1
  P1 P2
  P3 P2
  P4 P1
  
  Table tb2:
  THE PLAN_ID ACTIVITY_ID PICKING ARGUMENT
  P2 A1 5000
  P2 A2 5000
  P2 A3 5000
  P3 A1 10000
  P3 A2 10000
  P4 A1 4000
  
  
  I need to find the sum of the value of reduction of the workforce for each PLAN_ID which is parent root. In the case above, this is the argument PLAN_ID P1 (WHERE PARENT_PLAN_ID IS NULL). Please note that the value of the downsizing is repeated in the tb2 table. For example, the PLAN_ID P2 argument, the value of the downsizing is 5000 and not 5000 + 5000 + 5000.
  
  The result of the output for the above data must be
  THE ARGUMENT PLAN_ID DRAWDOWN
  P1 19000
  
  Published by: user10566312 on October 30, 2012 12:30

  with t as
  (   select t1.plan_id,t1.parent_plan_id,max(t2.DRAWDOWN) DRAWDOWN
      from tb1 t1,tb2 t2
      where t1.plan_id = t2.plan_id(+)
      group by  t1.plan_id,t1.parent_plan_id
  )
  select plan_id,sum(drawdown) drawdown
  from(
        select  connect_by_root plan_id as plan_id,
                nvl(DRAWDOWN,0) DRAWDOWN
        from t
        start with parent_plan_id is null
        connect by parent_plan_id  = prior plan_id
      )
  group by plan_id  ; 
  
  PLAN_ID DRAWDOWN
  ------- --------
  P1         19000 
  

  Published by: JAC on October 30, 2012 13:23

• Query Sub behavior strange when using Expressions regular Oracle

  I met a strange "inconsistent" when you use an Expression regular Oracle with subqueries in SQL. Here are some details on how to reproduce what I have observed. We managed to find a solution to this "problem" using a database index; I'm writing this case hoping to better understand why Regular Expressions Oracle do not seem to work in the same way that the older, standard functions integrated as INSTR, SUBSTR, AS, etc..
  
  Environment settings:
  This test has been done using Oracle XE (GR 11, 2) on 32-bit Windows operating system. For my test, I used the HR schema (which is delivered pre-completed with the installation of this product) with some modifications of my own.
  
  Make the Test objects:
  

  create table hr.emp_test as
  select to_char(employee_id) as emp_id_char, employee_id as emp_id,
  first_name, last_name, hire_date
  from hr.employees;

  To illustrate my test, I inserted mixed alphanumeric values and a null value in the column of my emp_id_char for good measure:
  

  insert into hr.emp_test (emp_id_char, first_name, last_name, hire_date)
  values ('XKCD123','TEST','LASTNAME',sysdate);
  insert into hr.emp_test (emp_id_char, first_name, last_name, hire_date)
  values (null,'TEST1','LASTNAME2',sysdate);
  commit;

  * (1) this request fails once a nonnumeric value is inserted into the emp_test table.*
  

  with
     sub1 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date 
        from hr.emp_test  )
  select * from sub1
  where emp_id between 100 and 110

  * (2) this query works OK.*
  

  with
     sub1 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date 
        from hr.emp_test where emp_id_char not like 'X%'  )
  select * from sub1
  where emp_id between 100 and 110

  * (3) this query works OK.*
  

  with
     sub1 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date 
        from hr.emp_test where instr(emp_id_char,'X',1) = 0 )
  select * from sub1
  where emp_id between 100 and 110

  * (4) this query Fails.*
  

  with
     sub1 as ( select emp_id_char, first_name, last_name, hire_date
                 from hr.emp_test
                where regexp_instr(emp_id_char, '[^[:digit:]]') = 0 ),
     sub2 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date
                from sub1 )
  select *
  from sub2
  where emp_id between 100 and 110
  
  ERROR:
  ORA-01722: invalid number

  * (5) even down the results of the rational expression of 3rd under the query in sequential processing order also FAILS *.
  

  with
     sub1 as ( select emp_id_char, first_name, last_name, hire_date
                 from hr.emp_test
                where regexp_instr(emp_id_char, '[^[:digit:]]') = 0 ),
     sub2 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date
                from sub1 ),
     sub3 as ( select emp_id, first_name, last_name, hire_date from sub2 )
  select *
  from sub3
  where emp_id between 100 and 110
  
  ERROR:
  ORA-01722: invalid number

  * (6) that it does not like previous query as well *.
  

  with
     sub1 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date,
         regexp_instr(emp_id_char, '[^[:digit:]]') as reg_x 
         from hr.emp_test 
         where reg_x = 0),
     sub2 as ( select emp_id, first_name, last_name, hire_date, reg_x
        from sub1 where reg_x = 0 )
  select * from sub2
  where emp_id between 100 and 110
  
  ERROR:
  ORA-00904: "REG_X": invalid identifier

  Our Solution...
  Add a hint to the query of sup that 'hiding' the result of sub1 in memory. That did the trick. This suspicion resembles only viable workaround for this behavior. Other old built-in functions (INSTR, AS, etc.) an they were automatically following the execution plan (results of cache memory) that he had to use a 'hint' to force with the function of the regular expression.
  
  The conclusion, which is what I would like to help to understand or explain is that:
  If you create a series of queries/sup queries or inline views, values depend on "regular expression" type built-in sql functions do not seem to stick or maintain when implemented in complex query logic.
  
  Any idea is appreciated!
  Thank you!
  
  Published by: 870810 on July 6, 2011 15:47

  870810 wrote:
  I met a strange "inconsistent" when you use an Expression regular Oracle with subqueries in SQL.

  This is the expected behavior and has nothing to do with regular expressions - much less directly (I'll explain later). Main rule: there is no WHERE clause predicate order. Even if you use views, views online, subquery factoring, optimizer etc. can extend your display, display online, a subquery factoring. And it's Optimizer who decides the order of execution predicate unless you use the ORDERED_PREDICATES key. Now, I can explain. Regular expressions are powerful enough but also everywhere in life to pay for it with the higher cost of execution. That's why optimizer decides to apply emp_id between 100 and 110 first and regexp_instr (emp_id_char, "[^ [: digit:]]'") = 0 later.

  explain plan for
  with
  sub1 as ( select emp_id_char, first_name, last_name, hire_date
  from emp_test
  where regexp_instr(emp_id_char, '[^[:digit:]]') = 0 ),
  sub2 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date
  from sub1 )
  select *
  from sub2
  where emp_id between 100 and 110;
  
  SQL> @?\rdbms\admin\utlxpls
  
  PLAN_TABLE_OUTPUT
  -------------------------------------------------------------------------------------
  Plan hash value: 3124080142
  
  ------------------------------------------------------------------------------
  | Id  | Operation         | Name     | Rows  | Bytes | Cost (%CPU)| Time     |
  ------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |          |     1 |    57 |     3   (0)| 00:00:01 |
  |*  1 |  TABLE ACCESS FULL| EMP_TEST |     1 |    57 |     3   (0)| 00:00:01 |
  ------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
  PLAN_TABLE_OUTPUT
  -------------------------------------------------------------------------------------
  
     1 - filter(TO_NUMBER("EMP_ID_CHAR")>=100 AND
                TO_NUMBER("EMP_ID_CHAR")<=110 AND  REGEXP_INSTR
                ("EMP_ID_CHAR",'[^[:digit:]]')=0)
  
  15 rows selected.
  
  SQL> 
  

  As you can see, optimizer uses a FULL SCAN to read data from the table and apply emp_id between 100 and 110 which translates TO_NUMBER ("EMP_ID_CHAR") > = 100 AND TO_NUMBER ("EMP_ID_CHAR")<=110. and="" obviously="" it="" fails="" trying="" to="" convert="" xkcd123="" to="" number.="" now="" cost="" of="" instr(emp_id_char,'x',1)="0" is="" lower="" and="" optimizer="" decides="" to="" apply="" instr="" first.="" therefore="" xkcd123="" is="" filtered="" out="" before="" to_number="" is="">

  SQL> explain plan for
    2  with
    3  sub1 as ( select emp_id_char, first_name, last_name, hire_date
    4  from emp_test
    5  where instr(emp_id_char, 'X') = 0 ),
    6  sub2 as ( select to_number(emp_id_char) as emp_id, first_name, last_name, hire_date
    7  from sub1 )
    8  select *
    9  from sub2
   10  where emp_id between 100 and 110;
  
  Explained.
  
  SQL> @?\rdbms\admin\utlxpls
  
  PLAN_TABLE_OUTPUT
  -----------------------------------------------------------------------------------------------
  Plan hash value: 3124080142
  
  ------------------------------------------------------------------------------
  | Id  | Operation         | Name     | Rows  | Bytes | Cost (%CPU)| Time     |
  ------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |          |     1 |    57 |     3   (0)| 00:00:01 |
  |*  1 |  TABLE ACCESS FULL| EMP_TEST |     1 |    57 |     3   (0)| 00:00:01 |
  ------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
  PLAN_TABLE_OUTPUT
  -----------------------------------------------------------------------------------------------
  
     1 - filter(INSTR("EMP_ID_CHAR",'X')=0 AND
                TO_NUMBER("EMP_ID_CHAR")>=100 AND TO_NUMBER("EMP_ID_CHAR")<=110)
  
  14 rows selected.
  
  SQL> 
  

  The bottom LINE: With the help of strings to store non-chaine (numeric in your case) is never a good idea and shows design problems.

  SY.

• Is what logic this correct?

  
  Hi gurus

  I need your advice to the monitoring scenario.

  Creating the table

  CREATE TABLE GROUP_TEST
  (
  GROUP_ID NUMBER (5));

  CREATE TABLE GROUP_TEST_DTL
  (
  GROUP_ID NUMBER (5),
  GROUP_TEST_DTL_ID NUMBER (5),
  DATE OF EFFECTIVE_DATE
  );

  Insertion

  INSERT INTO GROUP_TEST
  (
  100 SELECT FROM DUAL
  );

  INSERT INTO GROUP_TEST_DTL
  (
  SELECT GROUP_ID, 100, 1, 1 JANUARY 2014 "OF THE DOUBLE
  UNION ALL
  SELECT GROUP_ID 100, 2, 2 JANUARY 2014 ' FROM DUAL
  UNION ALL
  SELECT GROUP_ID, 100, 3, 3 JANUARY 2014 ' FROM DUAL
  );
  COMMIT;

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

  Query on table

  SELECT * FROM GROUP_TEST_DTL;

  The query result

  group_id group_test_dtl_id effective_date

  100                     1                             01-JAN-14

  100                     2                             02-JAN-14

  100                     3                             03-JAN-14

  Now I need the following output

  Output

  Group_id Min_effective_dt

  100 1 JANUARY 14

  I use the below 2 queries for this result.

  1st request

  SELECT GROUP_ID, MIN (EFFECTIVE_DATE)

  OF GROUP_TEST_DTL

  GROUP BY GROUP_ID;

  2nd request

  SEPARATE GROUP_ID, SELECT (SELECT MIN (EFFECTIVE_DATE) OF GROUP_TEST_DTL A

  WHERE A.GROUP_ID = B.GROUP_ID) MIN_DT

  OF GROUP_TEST_DTL B;

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

  My question is one that is more efficient query (I think 1st)?

  My other question is that I have my package consist of approximately 5 000 lines of code and I'm using plain effective_date in all my sliders as (select effective_date from group_test_dtl) and now my requirement has changed and the need to get/make min (effective_date) instead of plain effective_date, but in order to get the Effective_date Min, I have to use text-to-speech function Min as my 1st query and then we must consolidate all columns that exist in the select statement, but I have to change all my queries sliders, so I came to the idea of the 2nd query logic.

  Now I wonder, I did wrong and use query of query not 2nd logic 1.

  Please guide me what I need to keep my 1st query logic or the 2nd. Really appreciate your answers. Thank you

  I can tell only you should test it yourself or to consider their use quite heavy within this forum (check the difference tabibitosan/fixed, the function names...?.)

  Analytical functions Analytic Functions - the next best thing after selection according to Tom Kyte - are usually extremely efficient, despite the selection somehow inevitable within the selection because they run last (just before the order by clause).

  Concerning

  Etbin

• Order LUN matter?

  If you have joined a LUN to multiple hosts, no matter if the logic unit number number is the same for all hosts? By LUN number, I mean ID SCSI, not the UID.

  I would recommend you keep things simple and present the LUNS to all hosts with the same unit logic-ID number. As mentioned previously, using different IDS may not be important with VMFS data warehouses, but could cause problems with RDM (see the link in my previous post).

  André

• A query need to check whether the database should any recovery media...

  Hello
  
  I'm at the stage of editing a database and still be opened.at this point no matter what query is available or in any other way is there to check whether the database should any recovery media or Instance recovery... ?
  
  My goal is before opening the database, I make sure it's compatible or incompatible, and any form of recovery is necessary.
  
  Thank you and best regards,
  Rameau
  
  Published by: ragu.dba.in on 6 March 2013 12:57 AM

  Hi Lila,

  Use these queries, YVERT should match... no fuzzy file, don't check for recovering files in v$ recover_file... spend sufficient archives & realize the audits before open reset-logs

  set line 900
  set pages 900
  set echo on
  alter session set nls_date_format='dd-mon-yyyy hh24:mi:ss';
  set numwidth 13
  col CHECKPOINT_CHANGE# for 9999999999999999
  col CHANGE# for 9999999999999999
  column error format a10
  column member format a60
  show parameter db_recover
  select * from v$recover_file;
  select file#, status from v$datafile;
  select file#, checkpoint_change#, checkpoint_time, error from v$datafile_header;
  select distinct status from v$backup;
  select distinct  checkpoint_change#  from v$datafile_header;
  select hxfil file_id, fhscn scn, fhthr thread, fhrba_seq sequence, fhsta status from x$kcvfh;
  select distinct fhscn from x$kcvfh;
  select hxfil file_id, fhtnm tablespace_name from x$kcvfh;
  ##### Fuzzy Check ####
  alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS';
  set feedback on
  set heading on
  set pagesize 1000
  set linesize 175
  column checkpoint_change# format 999999999999999999999
  select status, checkpoint_change#, fuzzy,
  to_char(checkpoint_time, 'DD-MON-YYYY HH24:MI:SS') as checkpoint_time,
  count(*)
  from v$datafile_header
  group by status, checkpoint_change#, fuzzy, checkpoint_time
  order by status, checkpoint_change#, fuzzy, checkpoint_time;
  

  Thank you
  Ajay more
  http://www.moreajays.com

• Change the query to a Count (*)

  SELECT oh1.partner 'Dealer,'
  OD.sales_code 'merchant sales Code. "
  OH1. external_order_number 'Original merchant order number. "
  OH1. Region,
  Cust. billing_account_number "BAN."
  DSL.n_order 'DSL OrderNo. "
  DSL.tn_or_ftn "TN DSL."
  DSL.activation_date DSL"Activation", ".
  Telco.TN "ACCESS_TN"
  TO_CHAR (oh1.created_ts, "YYYY-MM-DD") "Date of the original order.
  Pack1.display_name 'original Description of the order. "
  Pack1.price 'Price Plan',
  uname. USER_FIRST_NAME 'Agent First Name. "
  uname. USER_LAST_NAME 'Agent Last Name',
  uname.User_Name "Agent ID",
  -to_char (dh.timestamp, ' yyyy-mm-dd hh: mi ') "USCS Button Pressed",
  TO_CHAR (oh2.created_ts, 'YYYY-MM-DD') 'USCS Order Date. "
  Pack2.display_name "USCS - order Description."
  CASE
  WHEN cd.state IN ('1 ', ' 15') THEN "RECEIVED".
  WHEN cd.state IN ('2') THEN 'TRANSFORMATION '.
  WHEN cd.state IN ('3', '8', ' 16', ' 18') THEN 'FINISH '.
  WHEN cd.state IN ('4 ', '9', ' 17') THEN 'CANCELLED '.
  WHEN cd.state ('6', '10', ' 13', ' 14') THEN 'PENDING '.
  WHEN cd.state IN ('7') THEN 'INCOMPLETE '.
  WHEN cd.state IN ('12', ' 19', ' 20') THEN 'PRESENTED '.
  ANOTHER 'OTHER '.
  END AS state_desc,
  Pack2.price "USCS - Plan price."
  Pack2.price - pack1.price "Net change"
  INA.first_name,
  INA.last_name,
  INA.add_line_1,
  Ina.City,
  INA. STATE,
  INA.zip
  
  OF ain.impl_oh_order_header oh1
  INNER JOIN ain.impl_oh_order_header ON oh1.external_order_number = oh2.external_order_number oh2
  INNER JOIN ain.impl_order_data ON oh1.transaction_id = od.transaction_id od
  INNER JOIN ain.impl_package ON oh1.transaction_id = pack1.transaction_id pack1
  INNER JOIN ain.impl_package ON oh2.transaction_id = pack2.transaction_id pack2
  INNER JOIN ain.impl_name_address ON oh1.transaction_id = ina.transaction_id ina
  INNER JOIN ain.impl_customer ON oh2.transaction_id = cust.transaction_id cust
  LEFT OUTER JOIN ain.impl_dsl ON oh2.transaction_id = dsl.transaction_id dsl
  LEFT OUTER JOIN ain.impl_access ON oh2.transaction_id = telco.transaction_id telco
  INNER JOIN ain.sncr_order_curr_disp ON cd.transaction_id = oh2.transaction_id cd
  INNER JOIN AIN.sncr_order_disp_head ON oh1.transaction_id = dh.transaction_id dh
  INNER JOIN ain.sncr_order_disposition ON dh.disp_transaction_id = disp.disp_transaction_id disp
  INNER JOIN ain.sncr_ssm_principal ON uname.user_id = dh.user_id uname
  
  WHERE the oh2.created_ts BETWEEN to_date (' 01/03/2012 00:00:00 "," mm/dd/yyyy hh24:mi:ss') AND to_date (' 31/03/2012 23:59 ',' dd/mm/yyyy hh24:mi:ss')
  AND oh1.uscs = 0 AND oh2.uscs = 1
  AND oh1.external_order_number NOT LIKE '% PROD_TEST % '.
  AND oh2.external_order_number NOT LIKE '% PROD_TEST % '.
  AND oh1.order_type = 'COMMAND '.
  AND oh2.order_type = 'COMMAND '.
  AND pack1.product_type = 'COMMAND '.
  AND pack2.product_type = 'COMMAND '.
  AND disp.category = 110 AND disp.state = 5
  AND disp.trx_seq = (SELECT MAX (trx_seq)
  Ain.sncr_order_disposition sod, ain.sncr_order_disp_head pink
  WHERE sodh.disp_transaction_id = sod.disp_transaction_id
  AND sodh.transaction_id = oh1.transaction_id
  AND sod.category = 110 AND sod.state = 5)
  AND pack1.offer_id IS NOT NULL
  AND pack2.offer_id IS NOT NULL
  AND ina.type = 'SERVICE '.
  AND cd.category = 100
  
  ORDER BY to_char (oh2.created_ts, ' YYYY-MM-DD "")

  Do you understand the technique that gave you yesterday? Just because your query has been modified, the response has not. For any question, you can always do

  SELECT COUNT(*)
    FROM (<>)
  

  It doesn't matter what query you have, you can always wrap up with a COUNT (*) SELECT to count the number.

  Justin

• query to retrieve a next valid record

  Hi all
  
  I have a strange obligation to write a query/logic to achieve the following objectives. I have a table that has a column of date and a field that indicates whether it is a valid date or not
  
  Valid date
  01/11/2010 Y
  01/12/2010 N
  N 13/01/2010
  2010-02-17 Y
  2010-03-15 N
  04/11/2010 Y
  21/06/2010 Y
  2010-08-18 N
  2010-09-14 N
  2010-10-17 Y
  
  If a specific date is not valid, I need to go out the next valid date. So, something like
  
  Valid date of valid date
  01/11/2010 Y 01/11/2010
  01/12/2010 N 17/02/2010
  13/01/2010 N 17/02/2010
  17/02/2010 2010-02-17 Y
  15/03/2010 N 04/11/2010
  04/11/2010 04/11/2010 Y
  21/06/2010 Y 21/06/2010
  18/08/2010 N 17/10/2010
  14/09/2010 N 17/10/2010
  17/10/2010 Y 10/17/2010
  
  Is it possible in a single query?
  
  
  Thank you
  
  Birdy

  with t as (
             select to_date('11/01/2010','dd/mm/yyyy') dt,'Y' valid from dual union all
             select to_date('12/01/2010','dd/mm/yyyy'),'N' from dual union all
             select to_date('13/01/2010','dd/mm/yyyy'),'N' from dual union all
             select to_date('17/02/2010','dd/mm/yyyy'),'Y' from dual union all
             select to_date('15/03/2010','dd/mm/yyyy'),'N' from dual union all
             select to_date('11/04/2010','dd/mm/yyyy'),'Y' from dual union all
             select to_date('21/06/2010','dd/mm/yyyy'),'Y' from dual union all
             select to_date('18/08/2010','dd/mm/yyyy'),'N' from dual union all
             select to_date('14/09/2010','dd/mm/yyyy'),'N' from dual union all
             select to_date('17/10/2010','dd/mm/yyyy'),'Y' from dual
            )
  select  dt,
          valid,
          min(
              case valid
                when 'Y' then dt
              end
             ) over(order by dt rows between current row and unbounded following) valid_dt
    from  t
    order by dt
  /
  
  DT         V VALID_DT
  ---------- - ----------
  11/01/2010 Y 11/01/2010
  12/01/2010 N 17/02/2010
  13/01/2010 N 17/02/2010
  17/02/2010 Y 17/02/2010
  15/03/2010 N 11/04/2010
  11/04/2010 Y 11/04/2010
  21/06/2010 Y 21/06/2010
  18/08/2010 N 17/10/2010
  14/09/2010 N 17/10/2010
  17/10/2010 Y 17/10/2010
  
  10 rows selected.
  
  SQL> 
  

  SY.

• A delicate sql query

  Hello
  
  I have data like this...
  
  table tab1 has only a single column col1 and it contains nearly 3000 lines and all are numeric values.
  
  tab2 has 3 columns col1, col2.col3
  
  I want to generate a sql statement select with every four rows from tab1 values similar to the following.
  
  Now say in the following example, after that only three rows of row value 8 are there in tab1, then the select statement includes only these three values.
  
  Select * from tab1
  
  col1
  ------
  1
  2
  3
  4 select col1, col2 from tab2 where col3 in (1,2,3,4)
  5
  6
  7
  8 select col1, col2 from tab2 where col3 in (5,6,7,8)
  9
  10
  11 select col1, col2 from tab2 where col3 in (9,10,11)
  
  I tried in sql, but do what can you with case that it's lift error row subquery returns error a lot of lines. In pl/sql, it is possible, but how can I do this in sql?
  
  Thanks in advance.

  Can you please explain this somewhat unusual query logic

  Extract is very well documented ;)

  The"/ / text()" portion is an xpath function that extracts the entire text within the xml tags, that is.

   xmltype('uvwx').extract('//text()')  =>  uvwx
  

  HTH.

• Can I make reference to a column of summary in my sql query?

  Basically, the object asking all this. I have a report very complex which has many queries of data related to the "main" request One of these queries of linked data has a subquery that it contains that references the primary key of the main request. I can't do the data binding (I can, but it's useless) using this field, because it is a subquery that has the link and this particular link. I tried to create a summary column that gives me the 'first' (and the only one, so it is safe) to reference it in the SQL block, but no go. I think that it is not still possible? Anyone have any ideas? At the moment I'm referencing that I have in a PL/SQL block (: CS_PK), but it is just considered as a parameter that never happened. Does not read the analytical column. Hmmm... I'm stuck.

  Try it with the datalink 'column-less ". Lets say query one is named Q1 with his group G1 and query is named two Q2 with the Group G2. Now create a data link between G1 and G2 do not drag a column of G1 in G2, but dragging the group header of the G1 to G2 od group header.

  Now, the detail query must be executed once for each master and you should be able to reference the value master directly in your auxiliary request.

  I hope this helps.

• Noob in SQL Tuning seeking help

  I am learning SQL Tuning and operation of it. I know that the first step is probably explain the sql statement execution plan? My problem is that I do not understand what am I suppose to collect from the execution plan.
  

  SQL> set autotrace traceonly explain
  SQL> select * from employees A
       where A.last_employed =
       ( SELECT TO_CHAR(MAX(TO_DATE(PAY_DATE,'MMRR')),'MMYY')
         FROM PAYROLL_VW1 B
         WHERE B.SSN = A.SSN AND B.PAY_TYPE_CODE IN ('02','12','22','32')
        AND STATUS = 'ACTIVE' AND A.BRANCH=B.BRANCH
       );

  Execution Plan
  ----------------------------------------------------------
     0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=47427 Card=1 Bytes
            =180)
  
     1    0   FILTER
     2    1     TABLE ACCESS (FULL) OF 'EMPLOYEES' (TABLE) (Cost=1618 Card
            =297964 Bytes=53633520)
  
     3    1     SORT (AGGREGATE)
     4    3       VIEW OF 'PAYROLL_VW1' (VIEW) (Cost=2290 Card=2 Bytes=
            46)
  
     5    4         SORT (UNIQUE) (Cost=2290 Card=2 Bytes=217)
     6    5           UNION-ALL
     7    6             FILTER
     8    7               TABLE ACCESS (FULL) OF 'PAYROLL2012' (TABLE) (C
            ost=2284 Card=1 Bytes=105)
  
     9    6             FILTER
    10    9               TABLE ACCESS (BY INDEX ROWID) OF 'PAYROLL2011'
            (TABLE) (Cost=4 Card=1 Bytes=112)
  
    11   10                 INDEX (RANGE SCAN) OF 'PAYROLL2011_IDX1' (IND
            EX) (Cost=3 Card=29)

  Then what should I do with the execution plan? What else should I check on it? How to grant the request?
  
  Edited by: apex_disco may 1, 2012 05:57

  I don't know how the licenses work. There is a difference between EM and Grid Control. I think that if you have just one instance, Enterprise Manager is installed, and if nothing is free I think it would be. Now, how much diagnosis is free? Who knows.

  But it may not be important. If you simply play "learning SQL Tuning" say, at home on a Linux machine, you can install anything you want and play with him.

  If adding an accelerated things index (in your re-written query logic now) then you must have had a considerable amount of documents in one of these tables not indexed. If you look at the plan to explain it now, it will probably show the indexes used, fewer files searched, less costly, etc as the other plan.

  But maybe I missed your point of departure. You want to learn how to set up queries in general or you try to resolve this particular application? I took the first for my previous answers.

  As for your results, your statistics say at least high level info. Becomes coherent and physical readings went down WAY.

  Initial statistics
  ----------------------------------------------------------
  0 recursive calls
  0 db block Gets
  1172490142 compatible Gets
  4914 physical reads
  Redo 191496 size

  2340 bytes sent via SQL * Net to client
  329 bytes received via SQL * Net from client
  1 SQL * Net back and forth to and from the client
  115881 sorts (memory)
  0 sorts (disk)
  0 rows processed

  on these tables and below are my stats. I think this is a major improvement. Elapsed time was reduced significantly to 00:00:00.65

  To listen statistics
  ----------------------------------------------------------
  352 recursive calls
  0 db block Gets
  31498 compatible Gets
  1101 physical reads
  0 redo size
  
  2340 bytes sent via SQL * Net to client
  329 bytes received via SQL * Net from client
  1 SQL * Net back and forth to and from the client
  13 sorts (memory)
  0 sorts (disk)
  0 rows processed

  Published by: gaffe on May 1, 2012 13:18