Rudy Limeback:
  是的,这相当简单。
  select 'Customers' as tablename
  , count(*) as row_count
  from Customers
  union all
  select 'Orders' as tablename
  , count(*) as row_count
  from Orders
  union all
  select 'Products' as tablename
sql语句怎么查询两张表的数据  , count(*) as row_count
  from Products
  union all
  ...
  如果你需要在你的数据库⾥的所有表上做这个查询,考试#⼤提⽰可以从INFORMATION_SCHEMA.TABLES视图⽣成表清单:
  select table_name
  from information_schema.tables
  where table_schema = 'mydatabase'
  然后你可以利⽤这个查询的结果集和⼀个⽂本编辑器⽣成第⼀个查询。

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