A MySQL IF condition

In my query I have an IF statement:

开发者_高级运维IF(friend.block, 'yes', 'no') 

where friend.block value is 0 or 1.. but either way its putting 'yes'.. any idea?

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friend.block should be of type INTEGER for that to work or you have to put a comparaison there:

IF(friend.block != 0, 'yes', 'no')

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Reference: MySQL Reference

The syntax is:

IF (friend.block = 1) THEN
    'Yes'
ELSE
    'No'
END IF

You can use case statement:

CASE friend.block WHEN 1 THEN 'Yes' WHEN 0 THEN 'No' END

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CASE friend.block WHEN 1 THEN 'yes' WHEN 0 THEN 'no' END