MySQL PLSQL Demo - 002.变量定义、赋值

drop procedure if exists p_hello_world;

create procedure p_hello_world()
begin
    declare v_number int;
    declare v_varchar varchar(32);
    set v_number = 1;
    set v_varchar = 'hello world';

    -- for debug
    select v_number;
    select v_varchar;
end;

call p_hello_world();

drop procedure if exists p_hello_world;

create procedure p_hello_world()
begin
    declare v_number int;
    declare v_varchar varchar(32);
    set v_number = 1;
    set v_varchar = 'hello world';

-- for debug
    select v_number;
    select v_varchar;
end;

call p_hello_world();