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delimiter //
create trigger tri_user after insert on user for each row
begin
set @u_name = new.u_name;
set @expire = '';
select sm_pwd_alter_day into @expire from system_manage where sm_id = 1;
set @str = concat('create EVENT eve_', @u_name, ' ON SCHEDULE EVERY ', @expire, ' day DO
update user set u_enable = \'δÆôÓÃ\' where u_name = \'', @u_name, '\'');
prepare stmt_str from @str;
execute stmt_str;
DEALLOCATE PREPARE stmt_str;
end;
//
delimiter ;
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