db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Christian d'Heureuse (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1576) Extend the CASE expression syntax for "simple case"
Date Sun, 23 Jul 2006 13:04:13 GMT
Extend the CASE expression syntax for "simple case"
---------------------------------------------------

                 Key: DERBY-1576
                 URL: http://issues.apache.org/jira/browse/DERBY-1576
             Project: Derby
          Issue Type: Improvement
          Components: SQL
            Reporter: Christian d'Heureuse
            Priority: Minor


The ISO/IEC 9075-2:1999 SQL standard describes two kinds of CASE expressions: "simple case"
and "searched case".
The current Derby version supports "searched case" but not "simple case".

The syntax for "simple case" is:

   CASE Expression
      WHEN Expression THEN Expression
    [ WHEN Expression THEN Expression ]
      ...
      ELSE ElseExpression
   END

Example:

   VALUES
      CASE 4
         WHEN 1 THEN 'one'
         WHEN 2 THEN 'two'
         WHEN 3 THEN 'three'
         ELSE 'many'
      END

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message