Where-Clause-Question by using "defined values.

Similar Questions

• Subselect in where clause returns... to values much... 'HR' - schema

  Hello Forum!
  
  SELECT job_id, last_name, salary,
  AVG (salary) OVER (PARTITION BY job_id) average
  Employees
  where (select job_id, count (number)
  employees
  Job_id group) > 1;
  
  This Script returns an error... to values much
  IM new to SQL and Oracle, so please be patient for me :-).
  
  I want to get back from the instruction of subselects only where this job_id are used more than 1 by job_id...
  but there is nothing wrong in my script.
  
  Thanks in advance.

  Hello

  Welcome to the forum!

  919787 wrote:
  Hello Forum!

  SELECT job_id, last_name, salary,
  AVG (salary) OVER (PARTITION BY job_id) average
  Employees
  where (select job_id, count (number)
  employees
  Job_id group) > 1;

  This Script returns an error... to values much

  Whenever you have a problem with an error message, view the exact error message, including line numbers.

  IM new to SQL and Oracle, so please be patient for me :-).

  I want to get back from the instruction of subselects only where this job_id are used more than 1 by job_id...
  but there is nothing wrong in my script.

  Thanks in advance.

  I think that's what you want:

  SELECT  last_name, job_id, salary
  ,     AVG (salary) OVER(PARTITION BY job_id) durchschnitt
  FROM     employees
  WHERE  job_id       IN (
                            SELECT    job_id
                         FROM         employees
                          GROUP BY  job_id
                  HAVING        COUNT (employee_id) > 1
                 )
  ;
  

  Whenever you post a question, please post a small example of data (CREATE TABLE and INSERT statements) and the results desired from these data. Explain how you get these results from these data.
  If you use other tables commonly available (such as hr.employees) so you don't have to display the sample data; just results and explanations. The tables in the schema scott feel generally better than those in the hr schema, because they are smaller. When I run the above query, I have 97 lines. It is difficult for you to produce 97 lines of output desired and difficult for people who want to help you to compare their results to your desired output when there is so much of it. I would like the problem using scott.emp and pretneding simplicy you want jobs with more than 3 people, so would be the desired output:

  ENAME      JOB              SAL DURCHSCHNITT
  ---------- --------- ---------- ------------
  SMITH      CLERK            800       1037.5
  ADAMS      CLERK           1100       1037.5
  JAMES      CLERK            950       1037.5
  MILLER     CLERK           1300       1037.5
  ALLEN      SALESMAN        1600         1400
  WARD       SALESMAN        1250         1400
  MARTIN     SALESMAN        1250         1400
  TURNER     SALESMAN        1500         1400
  

  and a query which produces:

  SELECT  ename, job, sal
  ,     AVG (sal) OVER (PARTITION BY  job) durchschnitt
  FROM     scott.emp
  WHERE       job       IN (
                            SELECT    job
                         FROM         scott.emp
                          GROUP BY  job
                  HAVING        COUNT (empno) > 3
                 )
  ;
  

  See the FAQ forum: {message identifier: = 9360002}
  Published by: Frank Kulash, may 2, 2012 10:45

• How only include a WHERE clause only when a connection variable has a value?

  I use JDeveloper 11 g using business components of the tables. I'm now modify the auto-generated SQL code to include WHERE clauses which depend on the values of bind variables. For example I have something like this:

  SELECT mytable.firstColumn
  FROM myTable 
  WHERE myTable.secondColumn= :VariableValue

  However, this means that when VariableValue is null SQL would fail and I get an error. Is there a way I can include the WHERE clause (or clause AND according to the position in SQL) only when a bound variable has a value (or a particular value)?

  Or use: WHERE NVL(:VariableValue,myTable.secondColumn) = myTable.secondColumn

• alias in where clause

  Hello
  
  It is a question of OCA certification.
  
  1. SQL > SELECT prod_name, prod_list_price, prod_list_price-(prod_list_price*.25) "DISCOUNTED_PRICE".
  PRODUCTS
  WHERE the discounted_price < 10;
  
  The query generates an error.
  What is the reason for generating fault?
  A. the parentheses should be added to frame the entire expression
  B. the quotes should be removed from the column alias
  C. column aliases must be replaced by the expression in the WHERE clause
  D. column aliases must be capitalized and closed double quotes in the WHERE clause
  
  Answer: D
  
  
  My question is how we can use aliases ("DISCOUNTED_PRICE") in where clause (WHERE "DISCOUNTED_PRICE" < 10)?
  
  Please specify.

  Hello

  C. response (and I think, you not write review at this time)

  You cannot use alias name in the WHERE clause.

  And if you want to continue to use DISCOUNTED_PRICE in the WHERE clause, you can use view inline.

  SELECT *
  FROM (SELECT prod_name,prod_list_price,prod_list_price-(prod_list_price*.25) "DISCOUNTED_PRICE"
  FROM products
  )
  WHERE  WHERE discounted_price<10;
  

  See you soon,.
  Suri

• What line in where clause is executed first

  Hello world!
  
  I have some sqls that looks like this
  

  select ...
  from table A, table B
  where a.name = b.name
  and a.name in (....)

  Now, which one of it is executed first? where clause or the clause and?
  
  Join the tables is done preferably in where clause?
  
  I use Oracle 10 g.
  
  Please give me some advice.
  
  Thank you.
  
  Nith

  There is no one "and the clause".

  Your where clause contains two conditions:

  a.name = b.name  -- condition 1 
  
  and 
  
  a.name in (....)   -- condition 2
  

  It is immaterial to the result in the order in which they are executed. And it does not matter in what order you write.
  The exact order of execution will be defined by the optimizer. It depends on the table statistics. You can see in your query execution plan.

• several conditional parameters in where clause

  How to select records in a table, when I say emp, a parameter for where the condition as
  If empno is known then use in where clause,
  If ename is known then use ename in where clause,
  If both are known then use two parameters in where clause.
  
  I use Oracle 9i.

  psuedo code.
  ...
  if p_empno is not null and p_ename is not null then
  select * from emp 
  where empno=p_emp and ename = p_ename ;
  elsif p_empno is null and p_ename is not null then
  select * from emp 
  where ename = p_ename ;
  elsif p_empno is not null p_ename is null then
  select * from emp 
  where empno=p_emp ;
  else 
  select * from emp 
  end if ;
  ...

  How can I do this in sql and plsql
  
  
  Thank you
  
  Published by: user10999538 on July 15, 2009 03:29

  Solution

  SELECT *
  FROM   emp
  WHERE  Nvl(empno,-9999) = Coalesce(p_empno,empno,-9999)
         AND Nvl(ename,'X') = Coalesce(p_ename,ename,'X')
  /
   
  

  SS

• Question about the order of evaluation of the clause WHERE CLAUSE when the Oracle OF the syntax used to join tables

  Hello

  Oracle version: 11.1.0.7.0 - 64 bit

  I read the documentation online at joins. The page is avialable here: joins at

  My question is about the join order of evaluation of the conditions in clause and the conditions of those

  are not the join conditions and are placed in the WHERE clause.

  Consider the following pseudocode

  SELECT

  T1. Col1,

  T2.Col1

  Of

  Table1 t1 LEFT OUTER JOIN table2 t2

  WE

  (condition_expression1)

  WHERE

  (condition_expression2)

  Is it correct to say that if there is no column on the status of join (condition_expression1) in condition_expression2, then condition_expression2 is executed before condition_expression1? In other words, oracle always trying to filter based on the WHERE clause individually each table as much as possible before joining them based on the conditions on the article?

  Thanks in advance,

  Hello

  dariyoosh wrote:

  Hello

  Oracle version: 11.1.0.7.0 - 64 bit

  I read the documentation online at joins. The page is avialable here: joins at

  My question is about the join order of evaluation of the conditions in clause and the conditions of those

  are not the join conditions and are placed in the WHERE clause.

  Consider the following pseudocode

  SELECT

  T1. Col1,

  T2.Col1

  Of

  Table1 t1 LEFT OUTER JOIN table2 t2

  WE

  (condition_expression1)

  WHERE

  (condition_expression2)

  Is it correct to say that if there is no column on the status of join (condition_expression1) in condition_expression2, then condition_expression2 is executed before condition_expression1? In other words, oracle always trying to filter based on the WHERE clause individually each table as much as possible before joining them based on the conditions on the article? ...

  The reverse is actually closer to the truth, but we can't really make general statements like that.

  SQL is not a language of the proceedings.  Looking at the code SQL, we could say that the code does, but we cannot say much about how that code it.  In other words, SQL is a language that describes the results you get, not the way to get them.

  The optimizer will do everything what he thinks is faster if it does not change the results.  If any order in which they are applied (in outer joins or CONNECT BY queries, for example), then think of the join is done first, and the value of the WHERE clause is applied to the result of the join.

  Here is a query looks very much like you posted:

  SELECT d.deptno

  e.ename, e.sal

  OF scott.dept d

  LEFT OUTER JOIN scott.emp e ON e.deptno = d.deptno

  WHERE e.sal > = 3000

  ORDER BY d.deptno

  ;

  Output:

  DEPTNO ENAME SAL

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

  10 KING 5000

  20 FORD 3000

  20 3000 SCOTT

  The scott.dept table contains deptnos 30 and 40; Why are they not in the result set?  The query behaves as if the outer join is made first (production 15 rows), then the WHERE clause has been applied.  All lines with deptno = 30 had sals down han 3000 and all single line with deptno = 40 was NULL in the sal column, then these lines are excluded (as well as other lines of deptnos 10 and 20), and only 3 lines above are left.

• Using cfif in a where clause clause

  Hi all

  This question is somewhat related to a previous post of mine on the polling dates.  I'm trying to use a cfif statement in my where clause to determine if a field is empty or not.  Here is the code:

  < cfquery name = "GetPastEvents" datasource = "DSN" >

  SELECT *.

  SITE: calendar

  WHERE DatePart ("yyyy", [StartDate]) = < cfqueryparam value = ' #Dateformat (Today, 'yyyy') # "cfsqltype = 'CF_SQL_DATE' / >

  and < cfif EndDate NEQ "> < cfelse > StartDate, EndDate < / cfif > < < cfqueryparam value =" "#Today #" cfsqltype = 'CF_SQL_DATE' / > "

  and Archive = < cfqueryparam value = '0' cfsqltype = "CF_SQL_INTEGER" / >

  ORDER BY StartDate ASC, StartTime ASC

  < / cfquery >

  My question that this CF tells me EndDate is not defined.  EndDate is a field in the SITE table: calendar.  There must be a way to make this work, no?  Thank you!

  You mix the ColdFusion variables (required by cfif) and SQL column names. Think of it this way, all CF tags and function run before the SQL query is sent to SQL server. You are this mixture and try to run CF instruction on SQL Server and thus fail.

  You need something like this:

  SELECT *.

  SITE: calendar

  WHERE DatePart ("yyyy", [StartDate]) =

  and)

  (enddate is not null and EndDate <> )

  or (enddate is null and StartDate <> )

  )

  and Archive =

  ORDER BY StartDate ASC, StartTime ASC

  Also, I think your logic cfif was back. Instead of NEQ I think you meant EQ because having an EndDate EQ "and then comparing EndDate until today (else clause) makes no sense.

• Using a CASE statement in 'IN' where clause clause

  Hello

  I have a form that users see after they connect with a few items and they type or select values based on the element type. All reports in the application use these values of PAGE 1 in where clause to filter the lines.

  One of these question is "Quarter".  I have a group of radio buttons on the PAGE 1 on the P1_QTR point.

  I need to provide users a way to take the last 4, last 3, last 2 or current quarter and I need to dynamically build a clause WHERE the interactive report based on the selection in the form.

  I am trying to use the CASE as shown below and get the syntax error.

  AND QTR to (when BOX: P1_QTR = 'CURRENT' then ("T4"))

  When: P1_QTR = "LAST" then ("Q3")

  When: P1_QTR = 'LAST TWO' then ('Q3, "Q4")

  When: P1_QTR = 'LAST THREE' then ("Q2", "Q3,' T4 ')

  another ("T1", "T2", "Q3,' T4 ')

  END)

  How can I achieve this?

  Following a simple logic, try

  and QTR to

  (

  Select 'T4' double where: P1_QTR <> 'LAST '.

  Union of all the

  Select 'Q3' to double where: P1_QTR <> "in PROCESS".

  Union of all the

  Select "Q2" double where: P1_QTR not in ('CURRENT', 'LAST', "LAST TWO")

  Union of all the

  Select "Q1" double where: P1_QTR not in ('CURRENT', 'LAST', 'LAST TWO', 'THREE LATEST')

  )

• Order columns (which make up the primary key constraint) matter in where clause of DML query for use of indexing mechanism to operate.

  Version of DB: database Oracle 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production

  
  I have a table my_table as below:
  create table my_table
  (
  my_code varchar2 (6).
  my_id varchar2 (24).
  forced pk_1 primary key (my_code, my_id)
  );

  
  Primary_key here's a composite key that contains columns 1 (my_code) and 2 (my_id).
  Is there that a difference in the way below queries is executed in terms of performance (use of indexing in the extraction).

  (a) select * from my_table where my_code = '123' and my_id = "456";
  (b) select * from my_table where my_id = '456' and my_code = '123';

  
  The understanding I have the order of the column in the where clause should be identical to the sequence in
  What primary key draws for indexing to be used by oracle in oracle other DML queries ignores indexing
  However when I used explain plain both show the same query cost with single scan with index rowid.
  so I don't know if I'm wrong in the concept that I have. Kindly help.

  Thanks in advance,
  Gerard

  Your question is answered in the Performance Tuning Guide

  Using indexes and clusters

  14.1.4 choosing composite indexes

  A composite index contains several key columns. Composite indexes can provide additional benefits compared to the index to single column:

  • Improved selectivity

    Sometimes the two or more columns or expressions, each with a low selectivity can be combined to form a composite with a high selectivity.

  • Reduced IO

    If all columns selected by a query are a composite index, then Oracle may return these values in the index without access to the table.

  A SQL statement can use a path on a composite index if the statement contains constructions that use a main part of the index.

  Note:

  This is no longer the case with the skip index scans. See "Index Skip Scans".

  A main part of an index is a set of one or more columns that have been specified first and consecutively in the list of columns in the CREATE INDEX statement that created the index.

• Question of WHERE Clause.

  All, I was just doing some checking at random and came across the following query

  SELECT * FROM emp WHERE +empno > 0;
  

  My question is that oracle runs the query above without any error. What is the use of such expressions in where clause and why the compiler does not throw error for these?

  I've never met such scenario. Just tried your query and it works. The reason is below.

  Look at what makes this request.

  SELECT - empno FROM emp;

  OUTPUT:

  -EMPNO
  ----------
  -7369
  -7499
  -7521
  -7566
  -7654
  -7698
  -7782
  -7788
  -7839
  -7844
  -7876

  -EMPNO
  ----------
  -7900
  -7902
  -7934

  14 selected lines.

  So you might see if you add a minus sign before the name of the column, it converts only for negative values.

  So, even if you add a sign "+", since these are positive values (> 0), your condition succeeds and gives the result. See what would happen if you used - empno in which your condition.

  SQL > SELECT * FROM emp WHERE empno - > 0;

  OUTPUT:

  no selected line

  Hope you clear how it works.

• where clause to see if they contain the null value

  So I've finalized my function but now am having some problems:
  
  the bl field (or the v_bl parameter) has null values in it. When I run the function using the "Select FH ('ACCESS', NULL, 8675309') From dual; I get a NULL return value because it uses the variable to compare with q.bl and you can not have q.bl = null in a Where clause.
  
  The main problem is when the parameters are passed, a line can have the same prob and site, but the bl might be different as null, which would give a different lname.
  
  
  In where clause I need to have something that will compare the parameter with the bl field. Sometimes it's null sometimes is not, but we need to find the line concerned. I made the "BOLD" in the question police
  
  Here are two possible lines in the data
  prob bl site lname
  ACCESS Smith 8675309 (null)
  54321 8675309 Johnson ACCESS
  
  so in theory, if the function is called with the parameters FH ('ACCESS', NULL, 8675306')
  He would return the lname: Smith
  
  and conversely FH ("ACCESS", "54321 ', 8675309") would return Johnson
  
  Here's the function
  
  create or replace
  Function FH
  (v_prob IN varchar2, v_bl IN varchar2, v_site IN varchar2)
  RETURN varchar2
  AS
  v_lname varchar2 (16);
  
  BEGIN
  
  S.Lname SELECT INTO v_lname
  Of
  request q
  JOIN THE
  s response
  On
  (q.order = s.order)
  
  WHERE
  q.BL = v_bl AND - where it is
  q.site = v_site AND
  q.prob = v_prob AND
  s.Lname IS NOT NULL;
  
  RETURN v_lname;
  END;
  
  
  
  -When I run the FH ('ACCESS', NULL,' 86753) function, it returns an empty value and not the family name
  
  Published by: user11210446 on May 28, 2009 17:03
  
  Published by: user11210446 on May 28, 2009 17:03

  user11210446 wrote:
  If v_bl is Null in the where clause it would even say q.bl = Null which will not work.

  Matches the NULL value
  (1) either you have to say-> q.bl IS NULL
  OR
  (2) WHERE the NVL (q.bl-99) = NVL (v_bl-99) - this will be true if q.bl and v_bl both are NULL
  NULL = NULL evaluates to TRUE, so you use NVL

  SS@XE > select * from dual where null = null ;
  
  no rows selected
  
  SS@XE > select * from dual where null is null ;
  
  D
  -
  X
  
  SS@XE > select * from dual where NVL(null,-1) = NVL(null,-1) ;
  
  D
  -
  X
  

  SS

• T/t with the WHERE clause using a list breaks

  Hello, all,.

  I have a project where I need to use a list as part of the WHERE clause for a t/t, and it is breaking.  I don't know what I'm doing wrong.

  For some pseudo-code, do I have a complete query of a database called 'people '.  A list of values for the t/t with the first query; the second query is my t/t:

  <cfquery name="getDIR" datasource="#request.THISDSN#">
      SELECT thisName dir FROM orgs WHERE thisID in (<cfqueryparam value="#form.org#" cfsqltype="cf_sql_varchar" list="yes" />)
  </cfquery>
  
  <cfquery name="people" database="people">
      SELECT colA, colB, colC, colD
      FROM people
      WHERE 1=1
          AND (
              div IN (<cfqueryparam value="#valueList(getDIR.dir)#" cfsqltype="varchar" list="yes" />)
              OR dir IN (<cfqueryparam value="#valueList(getDIR.dir)#" cfsqltype="varchar" list="yes" />)
              )
  </cfquery>
  
  
  

  I get the error message is "t/t syntax error: encountered" div IN \'thisValue\' ".»  Incorrect conditional expression, waiting for one of [as | null | between | in | comparison] condition. »

  Can support _not_ QoQ lists of WHERE clauses?

  V/r,

  ^_^

  SMH - so much... I just found.

  I forgot to give the lists in the second query bracket.

  
  

  (The pseudocode was manually typed, since my dev system is isolated from the internet, and I added the in my pseudo code when they were not in my original code.)

  * headdesk * headdesk * headdesk * headdesk *.

  V/r,

  ^_^

• by the way check box values in the WHERE clause

  Hello

  I created a data block - 'CONTACT' (block of data in database)

  and has an element of database - 'Code', 'Descr '.

  The number of records displayed has the value 5.

  When enabled - value 'Y '.

  Value when disabled - n

  Box mapping of other values - "unchecked."

  
  

  I write the code inside "WHEN the BUTTON PRESS. My main goal is to return the number of records from

  According to several conditions and one among them is the CODE which can be single or multiple based on the checked checkbox.

  The requirement is when I check one or more boxes, I should pass the "Code" element values in the WHERE clause.

  I tried to use the simple loop but things havmt worked as shown below.

  The next_record refers to the COCHEE BOX as well, and thus return all the eventhough lines if it is not checked.

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

  -LOOP
  

  IF: contact.cb = 'Y' THEN

  LOOP

  IF p_where is null then

  p_where: =: contact.code;

  on the other

  p_where: = p_where | «, » || : contact.code;

  end if;

  When the output: system.last_record = "TRUE";

  next_record;

  END LOOP;

  end if;

  -END LOOP;

  MESSAGE ("p_where :'|| p_where);

  MESSAGE (' ');

  END;

  
  

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

  And even if I write the LOOP before the first CASE, it returns me the current value and move to the last record.

  Please suggest

  Try something like this:

  FIRST_RECORD;
  
  LOOP
  
    IF :contact.cb = 'Y' THEN
      IF p_where is null then
         p_where := :contact.code;
       else
         p_where := p_where ||','||:contact.code;
       end if;
     END IF;
    exit when :system.last_record = 'TRUE';
    next_record;
  END LOOP;
  
  -- END LOOP;
  MESSAGE ( 'p_where :'||p_where);
  MESSAGE (' ');
  
  END;
  

• Not able to connect after changing the password using the VALUES ALTER clause

  Hello
  
  John explained earlier the clause VALUES below thread.
  
  Status expired
  
  I created a new account named SURI, and tried to use the password of the user account from the HR by using the VALUES clause. I was able to change the password but not able to connect SURI with HR password.
  
  Please see below for details. And the SQL statements that I have tried.
  

  SQL*Plus: Release 10.2.0.1.0 - Production on Mon Aug 13 18:44:50 2012
  
  Copyright (c) 1982, 2005, Oracle.  All rights reserved.
  
  Enter user-name: sys as sysdba
  Enter password:
  
  Connected to:
  Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
  
  SQL> SELECT password
    2  FROM dba_users
    3  WHERE username = 'HR';
  
  PASSWORD
  ------------------------------
  4C6D73C3E8B0F0DA
  
  SQL> ALTER USER SURI IDENTIFIED BY VALUES '4C6D73C3E8B0F0DA';
  
  User altered.
  
  SQL> SELECT password
    2  FROM dba_users
    3  WHERE username='SURI';
  
  PASSWORD
  ------------------------------
  4C6D73C3E8B0F0DA
  
  SQL> conn suri/hr     -- HR account's password is hr only
  ERROR:
  ORA-01017: invalid username/password; logon denied
  
  
  Warning: You are no longer connected to ORACLE.
  
  SQL>

  Thank you
  Suri

  Its because you have used a different username.
  Oracle produces a hash based on the user name and the password, not only the password.

  Therefore, you can not use the hashed password of a user to log on to the account of another user.

  You need to get the password hashed Suri and then connect you to suri by using the password hashed Suri (using the identified by the syntax of values)