-- ?查询指定库的所有表数据行数
use information_schema;
select table_name,table_rows from tables?
where TABLE_SCHEMA='cs_lanzhou'?
order by table_rows desc;?
-- 查询指定库的所有表外键
select
TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME
from INFORMATION_SCHEMA.KEY_COLUMN_USAGE
where CONSTRAINT_SCHEMA='cs_lanzhou' AND ?CONSTRAINT_NAME !='PRIMARY' ?
REFERENCED_TABLE_NAME='user1';
?-- ?查询指定库的所有表索引?
select * from INFORMATION_SCHEMA.STATISTICS ?where TABLE_SCHEMA='cs_lanzhou';
-- 查询指定库的所有视图
select * from INFORMATION_SCHEMA.VIEWS where TABLE_SCHEMA='tese' ;
-- 查询指定库的所有触发器
select * from INFORMATION_SCHEMA.TRIGGERS where TRIGGER_SCHEMA='tese';