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SELECT
CASE id
WHEN '0'
THEN
'1'
ELSE
'3'
END
AS AID
FROM rsi
WHERE rid='7174'
IF EXISTS (select '1' = '1')
select '1'
ELSE
select '0'
SELECT
CASE id
WHEN '0'
THEN
(
IF EXISTS (select '1' = '1')
select '1'
ELSE
select '0'
)
ELSE
'3'
END
AS AID
FROM rsi
WHERE rid='7174'