NOT EXPERIENCED with case statement , so any one can help me with that?
SELECT NAME ,
CASE ID ,
WHEN 1 THEN 'NAME EXISTS'
FROM EXAMPLE
END;
This simple case condition works, but I need to add an if condition like the below:
SELECT X.NAME, E.TYPE ,
CASE X.ID ,
WHEN 1 THEN IF E.TYPE='BIG' THEN 'NAME EXISTS'
WHEN 2 THEN IF E.TYPE='SMALL' THEN 'NAME EXISTS'
WHEN 3 THEN IF E.TYPE='MEDIUM' THEN 'NAME EXISTS'
WHEN 4 THEN IF E.TYPE='MEDIUM' AND NAME='STACK' THEN 'NAME EXISTS'
ELSE 'IT DOESNT EXISTS'
FROM EXAMPLE X , EXTERNAL E
END;
SELECT
X.NAME,
E.TYPE,
CASE WHEN X.ID = 1 AND E.TYPE = 'BIG' THEN 'NAME EXISTS'
WHEN X.ID = 2 AND E.TYPE = 'SMALL' THEN 'NAME EXISTS'
WHEN X.ID = 3 AND E.TYPE = 'MEDIUM' THEN 'NAME EXISTS'
WHEN X.ID = 4 AND E.TYPE = 'MEDIUM' AND NAME = 'STACK' THEN 'NAME EXISTS'
ELSE 'IT DOESNT EXISTS'
END
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