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28 sie 2014 · Heres what I'm trying to do: select. case. when someid = 1 then date_1. when someid = 2 then date_2. when someid = 3 then date_3. when someid = 4 then date_4. ,case. when someid = 1 then xdate_1.
3 lis 2018 · SELECT BIRTHDATE FROM SAMPLE_TABLE WHERE (CASE WHEN (:from AND NOT :to) THEN BIRTHDATE >= :receivefrom WHEN (:to AND NOT :from) THEN BIRTHDATE <= :to WHEN (:to AND :from) THEN BIRTHDATE BETWEEN :from AND :to END)
11 lut 2016 · I am using a CASE expression in my WHERE clause like this: SELECT * FROM ASPECT.WR_AM_ADT_SUMM INNER JOIN ASPECT.WR_AM_DLR_DTL ON AS_CNTRY_CD = DD_CNTRY_CD AND AS_DLR_CD = DD_...
Db2 supports two kinds of CASE expressions: simple CASE and searched CASE expressions. Both simple and searched CASE are expressions, therefore, you can use them in any clause that accepts an expression such as SELECT , WHERE , GROUP BY , and HAVING clauses.
If the CASE expression is in a VALUES clause, an IN predicate, a GROUP BY clause, or an ORDER BY clause, the search-condition in a searched-when-clause cannot be a quantified predicate, IN predicate using a fullselect, or an EXISTS predicate (SQLSTATE 42625).
In the first query, Db2 performs the division before performing the CASE statement and an error occurs along with the results. SELECT REF_ID,PAYMT_PAST_DUE_CT, CASE WHEN PAYMT_PAST_DUE_CT=0 THEN 0 WHEN PAYMT_PAST_DUE_CT>0 THEN SUM(BAL_AMT/PAYMT_PAST_DUE_CT) END FROM PAY_TABLE GROUP BY REF_ID,PAYMT_PAST_DUE_CT;
Example 2: Use a searched case statement WHEN clause to update column DEPTNAME in table DEPT, depending on the value of SQL variable v_workdept. CASE WHEN v_workdept < 'B01' THEN UPDATE DEPT SET DEPTNAME = 'DATA ACCESS 1'; WHEN v_workdept < 'C01' THEN UPDATE DEPT SET DEPTNAME = 'DATA ACCESS 2'; ELSE UPDATE DEPT SET DEPTNAME = 'DATA ACCESS 3 ...
