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How do I write an IF ELSE statement in a MySQL query?
Something like this:
mysql_query("...(irrelevant code).. IF(action==2&&state==0){state=1}"); Then down in my array I should be able to do this:
$row['state'] //this should equal 1, the query should not change anything in the database, //just the variable for returning the information 
212
The MySQL IF() function is used for validating a condition. The IF() function returns a value if the condition is TRUE and another value if the condition is FALSE. The MySQL IF() function can return values that can be either numeric or strings depending upon the context in which the function is used.
The IF() function that can be used in queries is primarily meant to be used in the SELECT portion of the query for selecting different data based on certain conditions, not so much to be used in the WHERE portion of the query: SELECT IF(JQ.
Any T-SQL statement can be executed conditionally using IF… ELSE. If the condition evaluates to True, then T-SQL statements followed by IF condition in SQL server will be executed. If the condition evaluates to False, then T-SQL statements followed by ELSE keyword will be executed.
You probably want to use a CASE expression.
They look like this:
SELECT col1, col2, (case when (action = 2 and state = 0) THEN 1 ELSE 0 END) as state from tbl1; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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