Mysql存储过程基本用法

create proce pro_count(out param int)
begin
select count(*) into param from testuser
end
call pro_count(@a);
select @a;
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declare 声明变量用法
create proce pro_test
(in parameter integer)
begin
delcare variable varchar(20);
if parameter=1 then
set variable='MYSQL';
else
set variable='PHP';
end if;
select variable;
end