SQL error

[wenowd]

My query islike below.

SELECT DISTINCT CASE
WHEN esc.x1 = Substr(inp.y, 0, 3)
AND esc.x2 = Substr(inp.y, 4, 2)THEN esc.cc
WHEN esc.mcc = Substr(inp.y, 0, 3)
AND esc.mnc = Substr(inp.y, 4, 3)THEN esc.cc
END
FROM xxx inp,
yyy esc
WHERE CASE
WHEN esc.x1 IN( Substr(inp.y, 0, 3) )
AND esc.x2 IN( Substr(inp.y, 4, 2) )THEN esc.cc
WHEN esc.x1 IN( Substr(inp.y, 0, 3) )
AND esc.x2 IN( Substr(inp.y, 4, 3) )THEN esc.cc
END IS NOT NULL

Now the query is returning more than one row because it is satisfying both the case statement. what i want is if the case statement is NULL then only it should go for second one.Otherwise only the output of first case should be the output.Pls help me to modify the query accordingly.

Thnx in advance.

[PAVB]

So... is the idea to return a row when either one of the two case conditions is true?
If that's the case I would use two case statements joined by OR.

[wenowd]

Hi thnx for your reply.

Can you put it in the query what ever you have explained as it would be helpful.

Thnx in advance.

[LKBrwn_DBA]

Try this:

SELECT DISTINCT
      CASE
          WHEN esc.x1 IN (SUBSTR (inp.y, 0, 3))
               AND esc.x2 IN (SUBSTR (inp.y, 4, 2), SUBSTR (inp.y, 4, 3))
           THEN
             esc.cc
          ELSE NULL
       END
  FROM xxx inp, yyy esc
 WHERE 
      CASE
          WHEN esc.x1 IN (SUBSTR (inp.y, 0, 3))
               AND esc.x2 IN (SUBSTR (inp.y, 4, 2), SUBSTR (inp.y, 4, 3))
           THEN
             esc.cc
          ELSE NULL
       END
          IS NOT NULL;

[wenowd]

Thnx for your reply will try and let you know.

[wenowd]

Hi,

The above query also takes both the CASE statements.

Where as it should take only one case and if 1st case is NULL only then it should go for 2ns CASE

[PAVB]

Where as it should take only one case and if 1st case is NULL only then it should go for 2ns CASE

As previously posted, use two case statements like...

CASE (condition 1)
OR
CASE (condition 2)

[LKBrwn_DBA]

My query islike below.

SELECT DISTINCT CASE
WHEN esc.x1 = Substr(inp.y, 0, 3)
AND esc.x2 = Substr(inp.y, 4, 2)THEN esc.cc
WHEN esc.mcc = Substr(inp.y, 0, 3)
AND esc.mnc = Substr(inp.y, 4, 3)THEN esc.cc
END
FROM xxx inp,
yyy esc
WHERE CASE
WHEN esc.x1 IN( Substr(inp.y, 0, 3) )
AND esc.x2 IN( Substr(inp.y, 4, 2) )THEN esc.cc
WHEN esc.x1 IN( Substr(inp.y, 0, 3) )
AND esc.x2 IN( Substr(inp.y, 4, 3) )THEN esc.cc
END IS NOT NULL

Now the query is returning more than one row because it is satisfying both the case statement. what i want is if the case statement is NULL then only it should go for second one.Otherwise only the output of first case should be the output.Pls help me to modify the query accordingly.

Thnx in advance.

Please clarify, I am only seeing ONE case statement with two "WHEN" conditions.
What do you mean by: "what i want is if the case statement is NULL then only it should go for second one." which is the first and which is the second?

[wenowd]

Can you put those CASE statements with OR condition because i changed but still it going for both CASE statements.

Thnx in advanvce

[PAVB]

Can you put those CASE statements with OR condition because i changed but still it going for both CASE statements.

Please show us what you did
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