我不想在查询中包含变量。我该怎么办？
以下是我的MYSQL查询：
Classes/PhpExcel基本上我想摆脱SET @totalcnt:=(
select prof.failed_attempt_count
from profile prof, app_user usr
where upper(usr.username) = upper("admin") and
prof.id = usr.profile_id and
usr.enterprise_id = (select id
from enterprise
where upper(enterprise_code) = upper("e100") ));
update app_user
set cur_failed_attempt_count = cur_failed_attempt_count + 1
where (upper(username) = upper("admin") and
enterprise_id = (select id
from enterprise
where upper(enterprise_code) = upper("e100")) and
cur_failed_attempt_count < @totalcnt
);
和第一@totalcnt命令。
请帮忙。
答案 0 :(得分：2)
您是否尝试将@totalcnt表达式直接添加到主查询中？ 编辑：包裹LIMIT 1，因为它被SELECT搜索了受影响的行数，而不是行数
update app_user
set cur_failed_attempt_count = cur_failed_attempt_count + 1
where (upper(username) = upper("admin")
and enterprise_id = (select id
from enterprise
where upper (enterprise_code) = upper("e100"))
and cur_failed_attempt_count < (select prof.failed_attempt_count
from profile prof, app_user usr
where upper(usr.username) = upper("admin")
and prof.id = usr.profile_id
and usr.enterprise_id = (select id
from enterprise
where upper(enterprise_code) = upper("e100") LIMIT 1))
);