近来一个项目要求做几个数据库的比较，其中有几项指标和数据库的表有关：
用户表个数
最大表记录数
记录总条数
如果靠手工一个表一个表的去查看统计，不仅枯燥费时，而且灵活性和扩展都不是很好，可能主要还是想偷懒的原因吧，今天花了点时间写了个简单的存储过程，只是为了快点完成任务，还没得及考虑方便性和处理错误，下面是源代码，原理很简单，参看代码中注释。
create procedure sp_tableCount
@newTable varchar(50),--new create table name
@isSet int --whether return new table recordset,non 0--return
as
declare @TableName nvarchar(100);
declare @sql nvarchar(800)
SET NOCOUNT ON
----create a target table named @newTable param value--------
IF EXISTS (SELECT table_name FROM INFORMATION_SCHEMA.TABLES
WHERE table_name = @newTable)
exec('DROP TABLE '+@newTable)
-----create target table------------
set @sql='create table ' + @newTable + '
(
Categary nvarchar(100) not null,
Value int
)'
exec(@sql)
----------add user tables count into target table----------------
set @sql='insert into '+@newTable+' select ''User Tables'',count(*)-1 from sysobjects where type=''U'''
exec(@sql)
--------define a cursor pointing the user tablename recordset--------
declare TableName_Cursor CURSOR FOR
select name from sysobjects where type='U'and name<>@newTable
open TableName_Cursor
fetch next from TableName_Cursor into @TableName
-------append every user table recordcount to target table----------------
while @@Fetch_Status=0
begin
set @sql='insert into '+@newTable+' select N'''+@TableName+''',count(*) from ' + @TableName
exec(@sql)
fetch next from TableName_Cursor into @TableName
end
-------release resource occupied by TableName_Cursor --------
close TableName_Cursor
deallocate TableName_Cursor
--------deal with the @isSet param-----------------
if @isSet<>0
exec('select * from '+@newTable)
