MySQL PLSQL Demo - 003.静态游标
时间：2021-07-01 10:21:17
帮助过：3人阅读
procedure if exists p_hello_world;
create procedure p_hello_world()
begin
declare id
integer;
declare username
varchar(
256);
declare result
varchar(
4000)
default ‘‘;
/* don‘t work */
/*declare cur_user cursor for select id from p_user where id is not null and name is not null order by id;*/
declare cur_user
cursor for select t.id, t.name
from p_user t
where t.id
is not null and t.name
is not null order by t.id;
declare continue handler
for SQLSTATE
‘02000‘ set id
= null;
open cur_user;
fetch cur_user
into id, username;
while (id
is not null) do
set result
= concat(result,
‘id:‘, id,
‘username:‘, username,
‘;‘);
fetch cur_user
into id, username;
end while;
close cur_user;
select result;
end;
call p_hello_world();
MySQL PLSQL Demo - 003.静态游标
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