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22 lut 2017 · So in a practical example: DECLARE m integer; DECLARE n integer; SET m = 1; SET n = 0; IF ((m>n AND m=1 AND n=0) OR m=n)THEN some code here END IF; The evaluation of the conditions follows the parenthesis rule same as in a mathematical operation.
SELECT item_code, IF(category_code = 'HERR1', 'NO', IF(category_code = 'COLN5', 1, 2)) AS category_code, item_name, item_quantity FROM qa_items. Then the first if will fail and the nested if will evaluate. edited Jul 24, 2012 at 10:00. answered Mar 10, 2012 at 17:30.
Syntax. IF (condition, value_if_true, value_if_false) Parameter Values. Technical Details. Works in: From MySQL 4.0. More Examples. Example. Return 5 if the condition is TRUE, or 10 if the condition is FALSE: SELECT IF (500<1000, 5, 10); Try it Yourself » Example. Test whether two strings are the same and return "YES" if they are, or "NO" if not:
The IF statement has three forms: IF...THEN statement: Evaluate one condition and execute a code block if the condition is true. IF...THEN...ELSE statement: Evaluate one condition and execute a code block if the condition is true; otherwise, execute another code block.
11 lip 2024 · -- This SQL statement uses the IF function to return a specific value based on the evaluation of a condition -- Explanation: The query evaluates the condition '1 > 3' and returns 'true' if the condition is true, otherwise it returns 'false'.
There is also an IF() function, which differs from the IF statement described here. See Section 14.5, “Flow Control Functions”. The IF statement can have THEN, ELSE, and ELSEIF clauses, and it is terminated with END IF.
30 sty 2019 · When calling the IF function, you provide it 3 arguments (or expressions). Let’s see it in action then go over how it works. Below I specify the @Shelly_id as the first argument, supplying strings as arguments 2 and 3. Dependent upon how the first argument evaluates, one of those 2 remaining arguments will return.
