delete from mysql.proc; create procedure syntaxerror(t int); ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 create procedure syntaxerror(t int); ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 create procedure syntaxerror(t int); ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 create procedure proc1() set @x = 42; create function func1() returns int return 42; create procedure foo() create procedure bar() set @x=3; ERROR HY000: Can't create a PROCEDURE from within another stored routine create procedure foo() create function bar() returns double return 2.3; ERROR HY000: Can't create a FUNCTION from within another stored routine create procedure proc1() set @x = 42; ERROR HY000: PROCEDURE proc1 already exists create function func1() returns int return 42; ERROR HY000: FUNCTION func1 already exists drop procedure proc1; drop function func1; alter procedure foo; ERROR HY000: PROCEDURE foo does not exist alter function foo; ERROR HY000: FUNCTION foo does not exist drop procedure foo; ERROR HY000: PROCEDURE foo does not exist drop function foo; ERROR HY000: FUNCTION foo does not exist call foo(); ERROR HY000: PROCEDURE foo does not exist drop procedure if exists foo; Warnings: Warning 1272 PROCEDURE foo does not exist create procedure foo() foo: loop leave bar; end loop; ERROR HY000: LEAVE with no matching label: bar create procedure foo() foo: loop iterate bar; end loop; ERROR HY000: ITERATE with no matching label: bar create procedure foo() foo: loop foo: loop set @x=2; end loop foo; end loop foo; ERROR HY000: Redefining label foo create procedure foo() foo: loop set @x=2; end loop bar; ERROR HY000: End-label bar without match create procedure foo(out x int) begin declare y int; set x = y; end; ERROR HY000: Referring to uninitialized variable y create procedure foo() begin select name from mysql.proc; select type from mysql.proc; end; call foo(); ERROR HY000: SELECT in a stored procedure must have INTO drop procedure foo; create procedure foo() return 42; ERROR HY000: RETURN is only allowed in a FUNCTION create function foo() returns int begin declare x int; select max(c) into x from test.t; return x; end; ERROR HY000: Queries, like SELECT, INSERT, UPDATE (and others), are not allowed in a FUNCTION create procedure p(x int) insert into test.t1 values (x); create function f(x int) returns int return x+42; call p(); ERROR HY000: Wrong number of arguments for PROCEDURE p, expected 1, got 0 call p(1, 2); ERROR HY000: Wrong number of arguments for PROCEDURE p, expected 1, got 2 select f(); ERROR HY000: Wrong number of arguments for FUNCTION f, expected 1, got 0 select f(1, 2); ERROR HY000: Wrong number of arguments for FUNCTION f, expected 1, got 2 drop procedure p; drop function f;