SQL to check if database is empty (no tables)

Question

I need to check if a database is totally empty (no tables) using an SQL query. How can this be done?

Thanks for the help!

Answer 1

"select * from information_schema.tables" will give you a list of tables on most databases.

Answer 2

In Oracle: select Count(*) from user_tables

Answer 3

In MYSQL:

use DATABASE;
show tables;

Answer 4

SQLServer implementation:

USE database_name
SELECT COUNT(*) from information_schema.tables 
WHERE table_type = 'base table' 

Answer 5

If you're using SQL Server 2005 or greater, you can use one of the system views to acheive this for the current db:

select Count(*)
from sys.tables
where [type] = 'U'

Answer 6

To get a list of all databases without tables in MySQL:

use information_schema

select schema_name from `schemata` s
  left join `tables` t on s.schema_name = t.table_schema
  where t.table_name is null
;

Cheers, Christian