常用sql备份

统计数据库中表格数据行数所占空间和索引情况

 set nocount on
 exec sp_MSForEachTable
 @precommand=N'
 create table ##(
 id int identity,
 表名 sysname,
 字段数 int,
 记录数 int,
 保留空间 Nvarchar(20),
 使用空间 varchar(20),
 索引使用空间 varchar(20),
 未用空间 varchar(20))',
 @command1=N'insert ##(表名,记录数,保留空间,使用空间,索引使用空间,未用空间) exec sp_spaceused ''?''
         update ## set 字段数=(select count(*) from syscolumns where id=object_id(''?'')) where id=scope_identity()',
 @postcommand=N'select
     id,
     表名,
     字段数 列数,
     (记录数/10000.0) 记录数万,
     (Convert(bigint,rtrim(Replace(保留空间,''KB'','''')))/1024.0) 保留空间M,
     (Convert(bigint,rtrim(Replace(使用空间,''KB'','''')))/1024.0) 使用空间M,
     (Convert(bigint,rtrim(Replace(索引使用空间,''KB'','''')))/1024.0) 索引使用空间M,
     (Convert(bigint,rtrim(Replace(未用空间,''KB'','''')))/1024.0) 未用空间M
  from ## a order by 使用空间M desc;
  drop table ##'
 set nocount off

统计分区信息

 SELECT *,$partition.PartFunCreateTime(InsertTime) [Partition Number]
 --, min(o.InsertTime) AS [Min StudentID]
 --, max(o.InsertTime) AS [Max StudentID]
 --, count(*) as [Rows In Partition]
 FROM Person AS o
 --GROUP BY $partition.PartFunCreateTime(InsertTime)
 ORDER BY [Partition Number]

 SELECT $partition.PartFunCreateTime(InsertTime) [Partition Number]
 , min(o.InsertTime) AS [Min StudentID]
 , max(o.InsertTime) AS [Max StudentID]
 , count(*) as [Rows In Partition]
 FROM Person AS o
 GROUP BY $partition.PartFunCreateTime(InsertTime)
 ORDER BY [Partition Number]

分区测试

 BEGIN TRANSACTION
 USE [FenQuTest]
 SET ANSI_NULLS ON
 SET QUOTED_IDENTIFIER ON
 CREATE TABLE [dbo].[staging_Person_0](
     [ID] [int] NOT NULL,
     [InsertTime] [smalldatetime] NULL
 ) ON [fg1]

 USE [FenQuTest]
 ALTER TABLE [FenQuTest].[dbo].[Person] SWITCH PARTITION 1 TO [FenQuTest].[dbo].[staging_Person_0]PARTITION 1
 USE [FenQuTest]
 ALTER PARTITION FUNCTION [PartFunCreateTime]() MERGE RANGE(N'2013-01-01T00:00:00.000')
 COMMIT TRANSACTION

表到分区

 ALTER TABLE [FenQuTest].[dbo].[staging_Person_0] SWITCH TO [FenQuTest].[dbo].[Person]PARTITION 1