create profile changepassword limit password_life_time10password_grace_time2password_reuse_time10;#查看配置文件select*fromdba_profileswhereprofile='CHANGEPASSWORD';#查看用户配置文件selectusername,profilefromdba_userswhereusername='XIAOMING2';#删除配置文件 cascade 把相关的东西都删除掉drop profile[ProfileName...
B.检查口令强度设置selectcount(*)fromdba_profileswhereresource_name=''PASSWORD_VERIFY_FUNCTION''andlimit=''NULL'',回显中COUNT值为0 C.检查是否配置最大认证失败次数selectlimitfromdba_profilestwhereresource_name=''FAILED_LOGIN_ATTEMPTS'',回显中default值变成6 D.检查帐户口令生存周期命令:selectlimitfromdba...
Postgresql使用Limit with Order by with select和where case MYSQL (WHERE - IF - SELECT/IN语句) MYSQL Select using WHERE,AND,OR SELECT in WHERE IN子查询 避免使用SELECT in WHERE C#和SQL动态where子句 使用Select和Where对Google查询进行排序 避免SELECT和WHERE子句中的重复计算 ...
Backend CH (ClickHouse) Bug description Gluten version 20240819 When integrate Kylin storage v3, there is an core dump at executing "src/kylin-it/src/test/resources/query/sql_grouping/query06.sql" [1775921] 2024-08-20T14:59:49,309 ERROR ...
1selectt1.*from_t t1, (selectidfrom_twherea =1and b =2orderbyc desc limit10000,10) t2wheret1.id = t2.id; 案例4:in + order by 索引 1KEY`idx_shopid_status_created`(`shop_id`,`order_status`,`created_at`) SQL语句 1select*from_orderwhereshop_id=1andorder_statusin(1,2,3)...
select * from users limit 1db.users.findOne()条件查询 select * from users where name like "%Joe%"db.users.find({name:/Joe/})模糊查询 select * from users where name like "Joe%"db.users.find({name:/^Joe/})模糊查询 select count(1) from usersDb.users.count()获取表记录数 ...
select*from_orderwhereshop_id=1andorder_statusin(1,2,3)orderbycreated_atdesclimit10 in查询在MySQL底层是通过n*m的方式去搜索,类似union,但是效率比union高。in查询在进行cost代价计算时(代价 = 元组数 * IO平均值),是通过将in包含的数值,一条条去查询获取元组数的,因此这个计算过程会比较的慢,所以MySQL...
select*from_orderwhereshop_id=1andorder_statusin(1,2,3)orderbycreated_atdesclimit10 in查询在MySQL底层是通过n*m的方式去搜索,类似union,但是效率比union高。in查询在进行cost代价计算时(代价 = 元组数 * IO平均值),是通过将in包含的数值,一条条去查询获取元组数的,因此这个计算过程会比较的慢,所以MySQL...
select*from_orderwhereshop_id=1andorder_statusin(1,2,3)orderbycreated_atdesclimit10 in查询在MySQL底层是通过n*m的方式去搜索,类似union,但是效率比union高。in查询在进行cost代价计算时(代价 = 元组数 * IO平均值),是通过将in包含的数值,一条条去查询获取元组数的,因此这个计算过程会比较的慢,所以MySQL...
1selectt1.*from_t t1, (selectidfrom_twherea =1and b =2orderbyc desc limit10000,10) t2wheret1.id = t2.id; 案例4:in + order by 索引 1KEY`idx_shopid_status_created`(`shop_id`,`order_status`,`created_at`) SQL语句 1select*from_orderwhereshop_id=1andorder_statusin(1,2,3)...