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22 lut 2017 · In a procedure the use of an IFis pretty straight forward: IF (yourCondition [logical operator(OR, AND) another condition] ) THEN. 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 hereEND IF;
SELECT item_code, -- First if IF(category_code = 'HERR1', 1, -- second else IF IF(category_code = 'COLN5', 2, -- last else 'NO') AS category_code, item_name, item_quantity FROM qa_items;
Definition and Usage. The IF () function returns a value if a condition is TRUE, or another value if a condition is FALSE. 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:
Summary. Use IF...THEN statement to conditionally execute a block of statements based on the evaluation of a specified condition. Use IF...THEN...ELSE statement to execute a block of statements if a specified condition is true and an alternative block of statements if the condition is false.
30 lip 2019 · You can use if statement in a stored procedure with multiple conditions with the help of AND or OR operator. The syntax is as follows −. DECLARE X int; DECLARE Y int; SET X = value1; SET Y = value2; IF ( (X < Y AND X > value1 AND Y >value2) OR X! = anyValueToCompare) THEN. yourStatement;
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. If a given search_condition evaluates to true, the corresponding THEN or ELSEIF clause statement_list executes.
MySQL IF function Examples. Let’s practice with several examples to see how the MySQL IF function works. A simple IF function example. You can use the IF function directly in the SELECT statement without the FROM and other clauses as follows: SELECT IF (1 = 2, 'true', 'false'); -- false Code language: SQL (Structured Query Language) (sql) Try ...
