Using CASE Expression

Hi,
I have the data like <0.001 in number datatype in Oracle 11g version database.
Now, the requirement is to show the value 0 when there is data like <0.001.
Please help to get know about this.
TIA,

Hi,
971165 wrote:
Hi,
I have the data like <0.001 in number datatype in Oracle 11g version database.Sorry, I don't understand. NUMBERs can't contain a < sign.
Do you mean that you have numbers like 0.0009 or 0.00001, which are less than 0.001?
>
Now, the requirement is to show the value 0 when there is data like <0.001.
Please help to get know about this.If you want to display 0 in place of all numbers x less than 0.001, then
SELECT  CASE
            WHEN  x < 0.001
            THEN  0
            ELSE  x
        END     AS X
...Depending on your data and your requirements, the TRUNC or ROUND functions might help, too.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved, and also post the results you want from that data.
If you're asking about a DML statement, such as UPDATE, the sample data will be the contents of the table(s) before the DML, and the results will be state of the changed table(s) when everything is finished.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

Similar Messages

  • How to use the CASE Expression in Where Cluase?

    Hi All,
    I'm trying to use the CASE Expression in the Where Clause at some trigger on the Form?
    I've tried this Code:
    Declare
    N Number;
    begin
    SELECT COUNT(E.EMP_SID)
         INTO N
         FROM EMPLOYEES E, RANKS R
         WHERE CASE WHEN R.qualification_sid = 1104 AND E.rank_sid = 8 THEN
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.spe_per)+1)
         ELSE
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.mili_yea_per)+1)
         END
         BETWEEN TO_DATE('01-07-2011', 'DD-MM-RR') AND TO_DATE('31-07-2011', 'DD-MM-RR');
    END;
    When I run this code as a normal query at any SQL editor it works successfully, But When I Compile it at some trigger on the Form it gives me this error:
    Encountered the symbol "CASE" when expecting one of the following:
    ( - + mod ......
    Heeey how to specify the previous code to be shown as code in the thread?
    Note: I'm using Forms 6i

    OK I tried it and worked but for one condition:
    WHERE DECODE (E.qualification_sid, 1104,
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.spe_per)+1),
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.mili_yea_per)+1))
         BETWEEN TO_DATE('01-07-2011', 'DD-MM-RR') AND TO_DATE('31-07-2011', 'DD-MM-RR')
    But how to put two conditions for the same Expression:
    WHERE DECODE ((E.qualification_sid, 1104) AND (E.RANK_SID, 8),
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.spe_per)+1),
         (TO_DATE(E.RANK_DATE, 'DD-MM-RR')+(365*M.mili_yea_per)+1))
         BETWEEN TO_DATE('01-07-2011', 'DD-MM-RR') AND TO_DATE('31-07-2011', 'DD-MM-RR')
    The previous code gives me this error: missing right parenthesis

  • Trying to use regular expressions to convert names to Title Case

    I'm trying to change names to their proper case for most common names in North America (esp. the U.S.).
    Some examples are in the comments of the included code below.
    My problem is that *retName = retName.replaceAll("( [^ ])([^ ]+)", "$1".toUpperCase() + "$2");* does not work as I expect. It seems that the toUpperCase method call does not actually do anything to the identified group.
    Everything else works as I expect.
    I'm hoping that I do not have to iterate through each character of the string, upshifting the characters that follow spaces.
    Any help from you RegEx experts will be appreciated.
    {code}
    * Converts names in some random case into proper Name Case. This method does not have the
    * extra processing that would be necessary to convert street addresses.
    * This method does not add or remove punctuation.
    * Examples:
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    * CAROL mosely-BrAuN --> Carol Mosely-Braun
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    * This is a work in progress that will need to be updated as new exceptions are found.
    public static String toNameCase(String name) {
    * Basic plan:
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    * 2. Capitalize characters with preceding spaces
    * 3. Remove double spaces.
    // Make the string all lower case
    String retName = name.trim().toLowerCase();
    // Collapse strings of spaces to single spaces
    retName = retName.replaceAll("[ ]+", " ");
    // "mc" names
    retName = retName.replaceAll("( mc)", " $1");
    // Ensure there is one space after periods and commas
    retName = retName.replaceAll("(\\.|,)([^ ])", "$1 $2");
    // Add 2 spaces after periods, commas, hyphens and apostrophes
    retName = retName.replaceAll("(\\.|,|-|')", "$1 ");
    // Add a double space to the front of the string
    retName = " " + retName;
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    Edited by: FuzzyBunnyFeet on Jan 17, 2011 10:56 AM
    Edited by: FuzzyBunnyFeet on Jan 17, 2011 10:57 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

    Hopefully someone will still be able to provide a RegEx solution, but until that time here is a working method.
    Also, if people have suggestions of other rules for letter capitalization in names, I am interested in those too.
    * Converts names in some random case into proper Name Case.  This method does not have the
    * extra processing that would be necessary to convert street addresses.
    * This method does not add or remove punctuation.
    * Examples:
    * CAROL mosely-BrAuN --&gt; Carol Mosely-Braun
    * carol o'connor --&gt; Carol O'Connor
    * DAN MARINO --&gt; Dan Marino
    * eD mCmAHON --&gt; Ed McMahon
    * joe amcode --&gt; Joe Amcode         &lt;-- Embedded "mc"
    * mr.t --&gt; Mr. T                    &lt;-- Inserted space
    * OLD MACDONALD --&gt; Old Macdonald   &lt;-- Can't capitalize the 'D" because of Ernst Mach
    * old mac donald --&gt; Old Mac Donald
    * ROY BLOUNT,JR. --&gt; Roy Blount, Jr.
    * ST.LOUIS --&gt; St. Louis
    * ST.LOUIS,MO --&gt; St. Louis, Mo     &lt;-- Avoid City Names plus State Codes
    * Tom Jones --&gt; Tom Jones
    * This is a work in progress that will need to be updated as new exceptions are found.
    public static String toNameCase(String name) {
         * Basic plan:
         * 1.  Strategically create double spaces in front of characters to be capitalized
         * 2.  Capitalize characters with preceding spaces
         * 3.  Remove double spaces.
        // Make the string all lower case
        String workStr = name.trim().toLowerCase();
        // Collapse strings of spaces to single spaces
        workStr = workStr.replaceAll("[ ]+", " ");
        // "mc" names
        workStr = workStr.replaceAll("( mc)", "  $1  ");
        // Ensure there is one space after periods and commas
        workStr = workStr.replaceAll("(\\.|,)([^ ])", "$1 $2");
        // Add 2 spaces after periods, commas, hyphens and apostrophes
        workStr = workStr.replaceAll("(\\.|,|-|')", "$1  ");
        // Add a double space to the front of the string
        workStr = "  " + workStr;
        // Upshift each character that is preceded by a space and remove double spaces
        // Can't upshift using regular expressions and String methods
        // workStr = workStr.replaceAll("( [^ ])([^ ]+)", "$1"toUpperCase() + "$2");
        StringBuilder titleCase = new StringBuilder();
        for (int i = 0; i < workStr.length(); i++) {
            if (workStr.charAt(i) == ' ') {
                if (workStr.charAt(i+1) == ' ') {
                    i += 2;
                while (i < workStr.length() && workStr.charAt(i) == ' ') {
                    titleCase.append(workStr.charAt(i++));
                if (i < workStr.length()) {
                    titleCase.append(workStr.substring(i, i+1).toUpperCase());
            } else {
                titleCase.append(workStr.charAt(i));
        return titleCase.toString();
    {code}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

  • Oracle:how to use max() function in case expression

    how to use max() function in case expression, Please explain with any example

    Hope this helps and should be self explanatory
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    select 2 ,200 from dual union
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    select 3,200  from dual  )
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    when  max(col2)=200 then 'with 200 range' end  from t group by col

  • Using case statement in OWB expression builder

    Hi All,
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    then
    (select call_zone_reltn_key from call_zone_reltn where
    call_zone_cd=substr(case
                   when substr( INGRP1.B_SUBNO,1,2)='00'
                   then
                   substr( INGRP1.B_SUBNO,3)
                   else substr( INGRP1.B_SUBNO,1)
                   end,1,length(call_zone_cd))and rownum=1)
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    end
    Kindly help me out in fixing this error or suggest any alternate way to use the above query in OWB expression builder.
    Thanks,
    Kabilan

    946887 wrote:
    Hi All,
    We are using OWB version 10.2.0.1.0. While using the below case statement We are getting the validation message as 'The expression is not properly formed'.
    Did you try to deploy the mapping ? Some time the expression validator gives wrong error messege.
    Try to deploy the mapping and see if you are still getting this issue
    Case statement used in expression builder:
    case when (INGRP1.CHARGETYPE in ('O','F') or INGRP1.TARIFF_GROUP in ('SMSINT','MMSINT')or ( INGRP1.CALL_TYPE = '002' and INGRP1.TARIFF_GROUP = 'MTV'))
    then
    (select call_zone_reltn_key from call_zone_reltn where
    call_zone_cd=substr(case
                   when substr( INGRP1.B_SUBNO,1,2)='00'
                   then
                   substr( INGRP1.B_SUBNO,3)
                   else substr( INGRP1.B_SUBNO,1)
                   end,1,length(call_zone_cd))and rownum=1)
    else -1
    end
    Kindly help me out in fixing this error or suggest any alternate way to use the above query in OWB expression builder.
    Thanks,
    Kabilan

  • Using CASE in Expression

    I've got problem in using CASE statetement Expression (OWB 9.0.4)
    Here's my code :
    CASE INGRP1.PARVW
    when 'RG' then '1'
    when 'WE' then '2'
    end
    then result is "Invalid relational operator" ???
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    Thanks
    Vincent

    Here is example from one of my mappings:
    case when trim(INGRP1.STATUS) = INGRP1.L_A then trunc(INGRP1.ACT_DATE)
    when trim(INGRP1.STATUS) = INGRP1.L_S then trunc(INGRP1.ACT_DATE_ALFA)
    when trim(INGRP1.STATUS) = INGRP1.L_C then trunc(INGRP1.ACT_DATE) end
    The datatype of INGRP1.L_A,INGRP1.L_S,INGRP1.L_C,INGRP1.STATUS is char.
    The datatype of output and INGRP1.ACT_DATE is date.
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  • How Get last five quarters data using ssrs expression

    Hi All,
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    Hi Mr.SMK,
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      2. Type parameter name and prompt, set Data Type to Date/Time.
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    Thanks,
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    Wendy Fu
    TechNet Community Support

  • CASE STATEMENTS AND CASE EXPRESSIONS IN ORACLE9I PL/SQL

    제품 : PL/SQL
    작성날짜 : 2001-11-13
    CASE STATEMENTS AND CASE EXPRESSIONS IN ORACLE9I PL/SQL
    =======================================================
    PURPOSE
    아래의 자료는 Case 문에서 oracle 8.1.7과 Oracle 9i의 New Feature로 8.1.7에서는
    sqlplus 에서만 가능했고, 9i 부터는 pl/sql 까지 가능하다.
    Explanation
    1. Oracle 8.1.7 Feature
    Oracle 8.1.7 에서 Case 문은 Decode 문과 유사하지만, 기존의 decode 문을 쓰는 것보다
    더 많은 확장성과 Logical Power와 좋은 성능을 제공한다. 주로 나이와 같이 category 별로
    나눌때 주로 사용하고 Syntex는 아래와 같다.
    CASE WHEN <cond1> THEN <v1> WHEN <cond2> THEN <v2> ... [ELSE <vn+1> ] END
    각각의 WHEN...THEN 절의 argument 는 255 까지 가능하고 이 Limit를 해결하려면
    Oracle 8i Reference를 참조하면 된다.
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    Case Example : 한 회사의 모든 종업원의 평균 봉급을 계산하는데 봉급이 $2000보다 작은경우
    2000으로 계산을 하는 방법이 pl/sql을 대신하여 case function을 사용할 수 있다.
    SELECT AVG(CASE when e.sal > 2000 THEN e.sal ELSE 2000 end) FROM emp e;
    Case Example : 나이를 column으로 가지고 있는 customer table을 예로 들어보자.
    SQL> SELECT
    2 SUM(CASE WHEN age BETWEEN 70 AND 79 THEN 1 ELSE 0 END) as "70-79",
    3 SUM(CASE WHEN age BETWEEN 80 AND 89 THEN 1 ELSE 0 END) as "80-89",
    4 SUM(CASE WHEN age BETWEEN 90 AND 99 THEN 1 ELSE 0 END) as "90-99",
    5 SUM(CASE WHEN age > 99 THEN 1 ELSE 0 END) as "100+"
    6 FROM customer;
    70-79 80-89 90-99 100+
    4 2 3 1
    1 SELECT
    2 (CASE WHEN age BETWEEN 70 AND 79 THEN '70-79'
    3 WHEN age BETWEEN 80 and 89 THEN '80-89'
    4 WHEN age BETWEEN 90 and 99 THEN '90-99'
    5 WHEN age > 99 THEN '100+' END) as age_group,
    6 COUNT(*) as age_count
    7 FROM customer
    8 GROUP BY
    9 (CASE WHEN age BETWEEN 70 AND 79 THEN '70-79'
    10 WHEN age BETWEEN 80 and 89 THEN '80-89'
    11 WHEN age BETWEEN 90 and 99 THEN '90-99'
    12* WHEN age > 99 THEN '100+' END)
    SQL> /
    AGE_G AGE_COUNT
    100+ 1
    70-79 4
    80-89 2
    90-99 3
    Example
    2. Oracle 9i Feature
    Oracle 9i부터는 pl/sql에서도 case문을 사용할 수 있으면 이것은
    복잡한 if-else 구문을 없애고, C언어의 switch문과 같은 기능을 한다.
    아래의 9i pl/sql Sample 및 제약 사항을 보면 아래와 같다.
    Sample 1:
    A simple example demonstrating the proper syntax for a case
    statement
    using a character variable as the selector. See the section entitled
    'Restrictions' at the end of this article for details on which PLSQL
    datatypes may appear as a selector in a case statement or
    expression.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    achar char(1) := '&achar';
    begin
    case achar
    when 'A' then dbms_output.put_line('The description was Excellent');
    when 'B' then dbms_output.put_line('The description was Very Good');
    when 'C' then dbms_output.put_line('The description was Good');
    when 'D' then dbms_output.put_line('The description was Fair');
    when 'F' then dbms_output.put_line('The description was Poor');
    else dbms_output.put_line('The description was No such Grade');
    end case;
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 2:
    A simple example demonstrating the proper syntax for a case
    expression
    using a character variable as the selector. See the section entitled
    'Restrictions' at the end of this article for details on which PLSQL
    datatypes may appear as a selector in a case statement or
    expression.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    achar char(1) := '&achar';
    description varchar2(20);
    begin
    description :=
    case achar
    when 'A' then 'Excellent'
    when 'B' then 'Very Good'
    when 'C' then 'Good'
    when 'D' then 'Fair'
    when 'F' then 'Poor'
    else 'No such grade'
    end;
    dbms_output.put_line('The description was ' || description);
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    NOTE: The above simple samples demonstrate two subtle differences in the
    syntax
    required for case statements and expressions.
    1) A case STATEMENT is terminated using the 'end case' keywords; a
    case
    EXPRESSION is terminated using only the 'end' keyword.
    2) Each item in a case STATEMENT consists of one or more
    statements, each
    terminated by a semicolon. Each item in a case expression
    consists of
    exactly one expression, not terminated by a semicolon.
    Sample 3:
    Sample 1 demonstrates a simple case statement in which the selector
    is
    compared for equality with each item in the case statement body.
    PL/SQL
    also provides a 'searched' case statement as an alternative; rather
    than
    providing a selector and a list of values, each item in the body of
    the
    case statement provides its own predicate. This predicate can be any
    valid boolean expression, but only one case will be selected.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    achar char(1) := '&achar';
    begin
    case
    when achar = 'A' then dbms_output.put_line('The description was
    Excellent');
    when achar = 'B' then dbms_output.put_line('The description was Very
    Good');
    when achar = 'C' then dbms_output.put_line('The description was
    Good');
    when achar = 'D' then dbms_output.put_line('The description was
    Fair');
    when achar = 'F' then dbms_output.put_line('The description was
    Poor');
    else dbms_output.put_line('The description was No such Grade');
    end case;
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 4:
    This sample demonstrates the proper syntax for a case expression of
    the
    type discussed in Sample 3 above.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    achar char(1) := '&achar';
    description varchar2(20);
    begin
    description :=
    case
    when achar = 'A' then 'Excellent'
    when achar = 'B' then 'Very Good'
    when achar = 'C' then 'Good'
    when achar = 'D' then 'Fair'
    when achar = 'F' then 'Poor'
    else 'No such grade'
    end;
    dbms_output.put_line('The description was ' || description);
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 5:
    This sample demonstrates the use of nested case statements. It is
    also
    permissable to nest case expressions within a case statement (though
    it
    is not demonstrated here), but nesting of case statements within a
    case
    expression is not possible since statements do not return any value.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    anum1 number := &anum1;
    anum2 number := &anum2;
    answer number;
    begin
    case anum1
    when 1 then case anum2
    when 1 then answer := 10;
    when 2 then answer := 20;
    when 3 then answer := 30;
    else answer := 999;
    end case;
    when 2 then case anum2
    when 1 then answer := 15;
    when 2 then answer := 25;
    when 3 then answer := 35;
    else answer := 777;
    end case;
    else answer := 555;
    end case;
    dbms_output.put_line('The answer is ' || answer);
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 6:
    This sample demonstrates nesting of case expressions within another
    case
    expression. Note again the absence of semicolons to terminate both
    the
    nested case expression and the individual cases of those
    expressions.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    declare
    anum1 number := &anum1;
    anum2 number := &anum2;
    answer number;
    begin
    answer :=
    case anum1
    when 1 then case anum2
    when 1 then 10
    when 2 then 20
    when 3 then 30
    else 999
    end
    when 2 then case anum2
    when 1 then 15
    when 2 then 25
    when 3 then 35
    else 777
    end
    else 555
    end;
    dbms_output.put_line('The answer is ' || answer);
    end;
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Although PL/SQL anonymous blocks have been used in all of the examples
    so far,
    case statements and expressions can also be used in procedures,
    functions, and
    packages with no changes to the syntax.
    The following samples are included for completeness and demonstrate the
    use of
    case statements and/or expressions in each of these scenarios.
    Sample 7:
    This sample demonstrates use of a case statement in a stored
    procedure.
    Note that this sample also demonstrates that it is possible for each
    of
    the items in the case body to consist of more than one statement.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    create or replace procedure testcasestmt ( anum IN number ) is
    begin
    case
    when anum = 1 then dbms_output.put_line('The number was One');
    dbms_output.put_line('In case 1');
    when anum = 2 then dbms_output.put_line('The number was Two');
    dbms_output.put_line('In case 2');
    when anum = 3 then dbms_output.put_line('The number was Three');
    dbms_output.put_line('In case 3');
    when anum = 4 then dbms_output.put_line('The number was Four');
    dbms_output.put_line('In case 4');
    when anum = 5 then dbms_output.put_line('The number was Five');
    dbms_output.put_line('In case 5');
    else dbms_output.put_line('The description was Invalid input');
    dbms_output.put_line('In the else case');
    end case;
    end;
    exec testcasestmt(&anum);
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 8:
    This sample demonstrates the use of a case statement in a stored
    package.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    create or replace package testpkg2 is
    procedure testcasestmt ( anum IN number );
    function testcasestmt_f ( anum IN number ) return number;
    end testpkg2;
    create or replace package body testpkg2 is
    procedure testcasestmt ( anum IN number ) is
    begin
    case
    when anum = 1 then dbms_output.put_line('The number was One');
    dbms_output.put_line('In case 1');
    when anum = 2 then dbms_output.put_line('The number was Two');
    dbms_output.put_line('In case 2');
    when anum = 3 then dbms_output.put_line('The number was Three');
    dbms_output.put_line('In case 3');
    when anum = 4 then dbms_output.put_line('The number was Four');
    dbms_output.put_line('In case 4');
    when anum = 5 then dbms_output.put_line('The number was Five');
    dbms_output.put_line('In case 5');
    else dbms_output.put_line('The description was Invalid input');
    dbms_output.put_line('In the else case');
    end case;
    end;
    function testcasestmt_f ( anum IN number ) return number is
    begin
    case
    when anum = 1 then dbms_output.put_line('The number was One');
    dbms_output.put_line('In case 1');
    when anum = 2 then dbms_output.put_line('The number was Two');
    dbms_output.put_line('In case 2');
    when anum = 3 then dbms_output.put_line('The number was Three');
    dbms_output.put_line('In case 3');
    when anum = 4 then dbms_output.put_line('The number was Four');
    dbms_output.put_line('In case 4');
    when anum = 5 then dbms_output.put_line('The number was Five');
    dbms_output.put_line('In case 5');
    else dbms_output.put_line('The description was Invalid input');
    dbms_output.put_line('In the else case');
    end case;
    return anum;
    end;
    end testpkg2;
    exec testpkg2.testcasestmt(&anum);
    variable numout number
    exec :numout := testpkg2.testcasestmt_f(&anum);
    print numout
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    Sample 9:
    This sample demonstrates the use of a case expression in a stored
    package.
    - - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
    set serveroutput on
    create or replace package testpkg is
    procedure testcase ( anum IN number );
    function testcase_f ( anum IN number ) return number;
    end testpkg;
    create or replace package body testpkg is
    procedure testcase ( anum IN number ) is
    anumber number := anum;
    anothernum number;
    begin
    anothernum :=
    case
    when anumber = 1 then anumber + 1
    when anumber = 2 then anumber + 2
    when anumber = 3 then anumber + 3
    when anumber = 4 then anumber + 4
    when anumber = 5 then anumber + 5
    else 999
    end;
    dbms_output.put_line('The number was ' || anothernum);
    end;
    function testcase_f ( anum IN number ) return number is
    anumber number := anum;
    anothernum number;
    begin
    anothernum :=
    case
    when anumber = 1 then anumber + 1
    when anumber = 2 then anumber + 2
    when anumber = 3 then anumber + 3
    when anumber = 4 then anumber + 4
    when anumber = 5 then anumber + 5
    else 999
    end;
    dbms_output.put_line('The number was ' || anothernum);
    return anothernum;
    end;
    end testpkg;
    variable numout number
    exec testpkg.testcase(&anum);
    exec :numout := testpkg.testcase_f(&anum);
    print numout
    - - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
    제약 사항
    다음의 databasetype은 case 문에서 지원되지 않는다.
    BLOB
    BFILE
    VARRAY
    Nested Table
    PL/SQL Record
    PL/SQL Version 2 tables (index by tables)
    Object type (user-defined type)
    All of these types except for object types face a similar restriction
    even for if statements (i.e. they cannot be compared for equality directly) so this is unlikely to change for these types. Lack of support for object types is simply an implementation restriction which may be relaxed in future releases.
    Reference Ducumment
    Oracle 8.1.7 Manual
    NOTE:131557.1

    I have done the following code but doesn't
    like the statement of - "case(butNext)". What do you mean "doesn't like" -- did you get an error message?
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    like "g.fillOval(100,50,70,90, BorderLayout.NORTH)"...no that doesn't make sense. You only use BorderLayout.NORTH when you're adding components to a BorderLayout layout manager. An oval is not a component and fillOval isn't adding a component and Graphics is not a Panel or layout manager.
    Would appreciate it if someone could tell me how to position
    shapes using the graohic method. I think the problem is that you're confusing shapes with components.

  • Nested CASE expressions in SQL Server 2008 R2

    Hi, For some reason when I use the below CASE expression in my SELECT statement I get duplicate records.
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    WHEN <Condition 2> THEN <Expression 2>
    WHEN <Condition 3> THEN <Expression 3>
    WHEN <Condition 4> THEN <Expression 4>
    END AS CaseResult
    Also tried using coalesce with no luck. How to write a nested CASE expression which would yield just one expression. In case if I have to combine 2 different Expressions for 1 record, Is there a way to merge the 2 Expressions writing CASE
    expression something like below.
    STUFF ((SELECT ',' + CASE WHEN <Condition 1> THEN <Expression 1>
    WHEN <Condition 2> THEN <Expression 2>
    WHEN <Condition 3> THEN <Expression 3>
    WHEN <Condition 4> THEN <Expression 4>
    END
    FOR XML PATH(''), ROOT('MyString'), TYPE).value('/MyString[1]','VARCHAR(MAX)'), 1, 1,'') AS CaseResult
    --ResultSet
    CaseResult
    <Expression 1, Expression 2>
    I am using SQL Server 2008 R2. Thanks in advance.......
    Ione

    Hi, For some reason when I use the below CASE expression in my SELECT statement I get duplicate records. Also tried using coalesce with no luck. How to write a nested CASE expression which would yeild just one expression. In case if I have to combine 2 different
    Expressions for 1 record, Is there a way to merge the 2 Expressions writing CASE expression something like below in SQL Server 2008 R2.
    CASE WHEN <Condition 1> THEN <Expression 1>
    WHEN <Condition 2> THEN <Expression 2>
    WHEN <Condition 3> THEN <Expression 3>
    WHEN <Condition 4> THEN <Expression 4>
    END AS CaseResultSTUFF ((SELECT ',' + CASE WHEN <Condition 1> THEN <Expression 1>
    WHEN <Condition 2> THEN <Expression 2>
    WHEN <Condition 3> THEN <Expression 3>
    WHEN <Condition 4> THEN <Expression 4>
    END
    FOR XML PATH(''), ROOT('MyString'), TYPE).value('/MyString[1]'<span clas
    Ione

  • Using CASE in the join statement in the AND clause. Where's the problem?

    All,
    I have my code, where based on the case statement, I would like to restrict the number of records in my JOIN condition. It's the CASE statement that I have used, that's giving me the problem. Not sure, what the problem is. The error says (in my case expression):
    Msg 102, Level 15, State 1, Line 59
    Incorrect syntax near '>'.
    Select a.Col1, a.Col2, b.Col1, b.Col2, b.Col3
    From Table1 a
    Join Table2 b
    On a.id = b.id
    Join Table3 c
    On c.FiltId = a.FiltId
    And
    Case
    When b.Col3 <> 5 --b.Col3 is an INT field
    Then (b.OutDate >= DATEADD(DAY, -30, c.InsertDate) And b.OutDate <= DATEADD(DAY, 30, c.InsertDate))
    When b.Col3 = 5
    Then (b.InDate >= DATEADD(DAY, 5, c.InsertDate))
    End
    Join Table 4 -- Other Join conditions and where clause conditions

    You do not know the CASE is an expression and fields are not columns. This is fundamental and probably means that a lot of your code needs work. 
    You can probably re-write the query with something like this: 
    SELECT A.col1, A.col2, B.col1, B.col2, B.col3
      FROM Table_1 AS A, Table_2 AS B, Table_3 AS C
     WHERE A.generic_id = B.generic_id
       AND C.foobar_id = A.foobar_id
       AND CASE
           WHEN B.col3 <> 5 
                AND (B.something_out_date 
                     <= DATEADD(DAY, -30, C.something_insertion_date) 
           THEN 'T'
           WHEN B.col3 = 5 
                AND (B.something_out_date 
                    >= DATEADD(DAY, -30, C.something_insertion_date) 
           THEN 'T'
           ELSE 'F' END = 'T' ;
    --CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
    in Sets / Trees and Hierarchies in SQL

  • Using case when statement or decode stament in where clause

    hi gems..
    i have a problem in the following query..
    i am trying to use case when statement in the where clause of a select query.
    select cr.customer_name || ' - ' ||cr.customer_number as cust_name,
    cr.salary as salary
    from customer_details cr
    where (case when '>' = '>' then 'cr.salary > 5000'
    when '>' = '<' then 'cr.salary < 5000'
    when '>' = '=' then 'cr.salary = 5000'
    else null
    end);
    the expression in the when clause of the case-when statement will come from UI and depending on the choice i need to make the where clause.
    thats why for running the query, i have put '>' in that place.
    so the original query will look like this(for your reference):
    select cr.customer_name || ' - ' ||cr.customer_number as cust_name,
    cr.salary as salary
    from customer_details cr
    where (case when variable = '>' then 'cr.salary > 5000'
    when variable = '<' then 'cr.salary < 5000'
    when variable = '=' then 'cr.salary = 5000'
    else null
    end);
    so, in actual case,if the user selects '>' then the filter will be "where cr.salary > 5000"
    if the user selects '<' then the filter will be "where cr.salary < 5000"
    if the user selects '=' then the filter will be "where cr.salary = 5000"
    but i am getting the error "ORA 00920:invalid relational operator"
    please help..thanks in advance..

    Hi,
    select cr.customer_name || ' - ' ||cr.customer_number as cust_name,
           cr.salary                                      as salary
    from customer_details cr
    where (    v_variable = 'bigger'
           and cr.salary > 5000
       or (    v_variable = 'less'
          and cr.salary < 5000
       or (    v_variable = 'eq'
            and cr.salary = 5000
           )Edited by: user6806750 on 22.12.2011 14:56
    For some reason I can't write in sql '<', '>', '='

  • Need help in this sql query to use Case Statement

    hi All,
    I have the below query -
    SELECT DISTINCT OFFC.PROV_ID
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    WHEN OFFC.WK_DAY ='MONDAY' THEN 1
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    WHEN OFFC.WK_DAY ='WEDNESDAY' THEN 3
    WHEN OFFC.WK_DAY ='THURSDAY' THEN 4
    WHEN OFFC.WK_DAY ='FRIDAY' THEN 5
    WHEN OFFC.WK_DAY ='SATURDAY' THEN 6
    WHEN OFFC.WK_DAY ='SUNDAY' THEN 7
    END AS DOW
    ,OFFC.OFFC_OPENG_TIME
    ,OFFC.OFFC_CLSNG_TIME
    FROM GGDD.PROV_OFFC_HR OFFC
    WHERE OFFC.PROV_ID='0000600'
    WITH UR;
    this query is bringing results in 6 differnt rows with opening and closing time for each day separately. I want to generate the data in one row with each day having opening and closing time, so for 7 days, total 14 columns with opening and closing time. But i am not able to do that using case statement.
    can somebody help me in achieving that.
    thanks,
    iamhere

    Hi,
    Welcome to the forum!
    That's called a Pivot .
    Instead of having 1CASE expression, have 14, one for the opening and one for the closing time each day, and do GROUP BY to combine them onto one row.
    SELECT       OFFC.PROV_ID
    ,       MIN (CASE WHEN OFFC.WK_DAY ='MONDAY'    THEN OFFC.OFFC_OPENG_TIME END)     AS mon_opn
    ,       MIN (CASE WHEN OFFC.WK_DAY ='MONDAY'    THEN OFFC.OFFC_CLSNG_TIME END)     AS mon_cls
    ,       MIN (CASE WHEN OFFC.WK_DAY ='TUESDAY'   THEN OFFC.OFFC_OPENG_TIME END)     AS tue_opn
    ,       MIN (CASE WHEN OFFC.WK_DAY ='TUESDAY'   THEN OFFC.OFFC_CLSNG_TIME END)     AS tue_cls
    FROM        GGDD.PROV_OFFC_HR OFFC
    WHERE       OFFC.PROV_ID     = '0000600'
    GROUP BY  offc.prov_id
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    Edited by: Frank Kulash on Jan 6, 2011 8:22 PM

  • Case expression error with a select query in the condition

    Consider the two query below:
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    select case when 3 > (select 1 from dual)*2 then 1 else 0 end from dual
    2. The equivalent with a decode expression:
    select
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    The first query return an ORA-00905 error but not the second one. It seems that the arithmetic operation (select 1 from dual)*2 cause the error. The folowing query doesn't return this error:
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    Thomas

    ora8174>select case when 3 > (select 1 from dual)*2 then 1 else 0 end from dual;
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    ERROR at line 1:
    ORA-00905: missing keyword
    ora8174>select case when 3 > cast((select 1 from dual)*2 as number) then 1 else 0 end from dual;
    CASEWHEN3>CAST((SELECT1FROMDUAL)*2ASNUMBER)THEN1ELSE0END
                                                           1
    1 row selected.
    ora8174>select case when 3 > to_number((select 1 from dual)*2) then 1 else 0 end from dual;
    CASEWHEN3>TO_NUMBER((SELECT1FROMDUAL)*2)THEN1ELSE0END
                                                        1
    1 row selected.
    ora8174>@connect
    Connected.
    ora9204>select case when 3 > (select 1 from dual)*2 then 1 else 0 end from dual;
    CASEWHEN3>(SELECT1FROMDUAL)*2THEN1ELSE0END
                                             1
    1 row selected.

  • How to use case when statements in ODI

    I need to put conditional logic before DVM look up in ODI. In the expression editor I put the following statement:-
    CASE WHEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME='RCS' THEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME=EBIZ_CELL.CELL_DATA
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    It did not work,
    Under Operators ->All Executions, found the error:-
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    The description in Session Task contained:-
    select     
         C1_JOURNAL_TEMPL
    from     APPS.POC_JOURNAL_TEMP_SOURCE_TBL POC_JOURNAL_TEMP_SOURCE_TBL, APPS.C$_0POC_JOURNAL_TEMP_TARGET_TB
    where     
         (1=1)
    And (CASE
    WHEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME='RCS'
    THEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME=C2_CELL_DATA
    WHEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME='FDC'
    THEN CONCAT(POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME,POC_JOURNAL_TEMP_SOURCE_TBL.BOOK_CODE)=C2_CELL_DATA
    END)
    Checked the above code in PL/SQL Developer but it gave errors.
    In PL/SQL developer tried to check a simple query using case-when but even that is giving errors in the case-when portion.
    The query is as follows:-
    select phase_code, accounting_period, sum(eff_cc) as BD_Eff_QTD
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    where
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    when 'EXT'
    then
    1
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    then
    2
    when 'XXX'
    then
    3
    else
    end
    I would like to know what is wrong with the above code.
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    Your ODI case statement and PL/SQL Case statement both looks confusing.
    You are writing case statement under where clause which is not a good practise. If you want to implement logic like-
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    where
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    when cond^n^ 2 then do 2
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    where cond^n^ 1
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    CASE
    WHEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME='RCS'
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    WHEN POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME='FDC'
    THEN CONCAT(POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME,POC_JOURNAL_TEMP_SOURCE_TBL.BOOK_CODE)
    END
    Pl/SQL query-
    select phase_code, accounting_period,
    case POC_JOURNAL_TEMP_SOURCE_TBL.APPLICATION_NAME
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    when 'RAC' then 2
    when 'XXX' then 3
    else 'default value' --- (if no else needed then can also remove else part)
    end,
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    from prj_detail
    Suggested as per what is understood, hope it helps.
    Edited by: 939451 on Jul 5, 2012 12:47 AM
    Edited by: 939451 on Jul 5, 2012 12:48 AM

  • How to use CASE stmt in Where clause

    Hi,
    How to use CASE stmt in WHERE clause?. I need the code. Please send me as early as possible..........

    Hi,
    1004977 wrote:
    Hi,
    How to use CASE stmt in WHERE clause?. There's no difference between how a CASE expression is used in a WHERE clause, and how it is used in any other clause. CASE ... END always returns a single scalar value, and it can be used almost anywere a single scalar expression (such as a column, a literal, a single-row function, a + operation, ...) can be used.
    CASE expressions aren't needed in WHERE clauses very much. The reason CASE expressions are so useful is that they allow you to do IF-THEN-ELSE logic anywhere in SQL. The WHERE clause already allows you to do IF-THEN-ELSE logic, usually in a more convenient way.
    I need the code.So do the peple who want t help you. Post a query where you'd like to use a CASE expression in the WHERE clause. Post CREATE TABLE and INSERT statements for any tables used unless they are commonly available, such as scott.emp). Also, post the results you want from that sample data, and explain how you get those resuts from that data.
    See the forum FAQ {message:id=9360002}
    Please send me as early as possible..........As mentioned bfore, that's rude. It's also self-defeating. Nobody will refuse to help you because you don't appear pushy enough, but some people will refuse to help you if you appear too pushy.

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