SQLServer实例之间克隆表
场景： 两个SQLServer实例（可能在不同机器上）
（1）实例1 ： SarahCla
（2）实例2： CloneServer
目标：将SarahCla中的某些表的结构及数据克隆到CloneServer中
step 1： 在CloneServer中建立SarahCla的linkserver，执行语句如下
Exec sp_droplinkedsrvlogin [SARAHCLA],Null
EXEC sp_addlinkedserver
@server='SARAHCLA',
@srvproduct='',
@provider='SQLOLEDB',
@datasrc="SarahCla"
EXEC sp_addlinkedsrvlogin
'SARAHCLA',
'false',
NULL,
'sa', --帐号
'XXXXX' --密码 嚯嚯，差点忘了删密码
step 2: 在SarahCla 实例中相应的
数据库中创建存储过程，获取table的创建语句。
（linkserver直接select * into 会丢掉一些列的property，例如identity）
create procedure SP_GET_TABLE_INFO
@ObjName varchar(128),
@sql nvarchar(4000) output,
@cols nvarchar(4000) output
as
declare @Script varchar(255)
declare @ColName varchar(30)
declare @ColID TinyInt
declare @UserType smallint
declare @TypeName sysname
declare @Length TinyInt
declare @Prec TinyInt
declare @Scale TinyInt
declare @Status TinyInt
declare @cDefault int
declare @DefaultID TinyInt
declare @Const_Key varchar(255)
declare @IndID SmallInt
declare @IndStatus Int
declare @Index_Key varchar(255)
declare @DBName varchar(30)
declare @strPri_Key varchar (255)
if not Exists(Select name from sysobjects where name = @ObjName)
begin
select @DBName = db_name()
raiserror(15009,-1,-1,@ObjName,@DBName)
return (1)
end
create table #spscript
(
id int IDENTITY not null,
Script Varchar(255) NOT NULL,
LastLine tinyint
)
declare Cursor_Column INSENSITIVE CURSOR
for Select a.name,a.ColID,a.usertype,b.name,a.length,a.prec,a.scale,a.Status, a.cDefault,
case a.cdefault when 0 then ' ' else (select c.Text from syscomments c where a.cdefault = c.id) end const_key
from syscolumns a, systypes b where object_name(a.id) = @ObjName
and a.usertype = b.usertype order by a.ColID
set nocount on
Select @Script = 'Create table ' + @ObjName + '('
Insert into #spscript values(@Script,0)
/* Get column information */
open Cursor_Column
fetch next from Cursor_Column into @ColName,@ColID,@UserType,@TypeName,@Length,@Prec,@Scale,
@Status,@cDefault,@Const_Key
Select @Script = ''
while (@@FETCH_STATUS <> -1)
begin
if (@@FETCH_STATUS <> -2)
begin
if (@cols='')
set @cols = @ColName
else
set @cols = @cols + ',' + @Colname
Select @Script = @ColName + ' ' + @TypeName
if @UserType in (1,2,3,4)
Select @Script = @Script + '(' + Convert(char(3),@Length) + ') '
else if @UserType in (24)
Select @Script = @Script + '(' + Convert(char(3),@Prec) + ','
+ Convert(char(3),@Scale) + ') '
else
Select @Script = @Script + ' '
if ( @Status & 0x80 ) > 0
Select @Script = @Script + ' IDENTITY(1,1) '
if ( @Status & 0x08 ) > 0
Select @Script = @Script + ' NULL '
else
Select @Script = @Script + ' NOT NULL '
if @cDefault > 0
Select @Script = @Script + ' DEFAULT ' + @Const_Key
end
fetch next from Cursor_Column into @ColName,@ColID,@UserType,@TypeName,@Length,@Prec,@Scale, @Status,@cDefault,@Const_Key
if @@FETCH_STATUS = 0
begin
Select @Scrip