5
当一个新的列被添加到被配置成用于变更数据捕获（CDC）表中，捕获实例表不会有新列直到CDC被禁用，并且重新启用源表。在这个过程中，现有的捕获实例被删除。Sql Server更改数据捕获：添加列时保留历史记录？
我以为我可以现有的数据复制出一个临时表，然后复制回使用以下SQL。但是，其他CDC元信息（例如cdc.change_tables.start_lsn）无效。
如何捕获实例历史记录保存，使用相同的捕获实例的名称，如果在所有？
感谢， 丰富
/*Change Data Capture Test - Alter table definition test */
/*Enter restricted mode so we don't lose data changes during this process*/
alter database ChangeDataCaptureTest set AUTO_UPDATE_STATISTICS_ASYNC OFF
alter database ChangeDataCaptureTest set RESTRICTED_USER with ROLLBACK IMMEDIATE
go
/*Add a column to the table*/
alter table dbo.Table1 add value3 varchar(20) DEFAULT '' not null
/*Copy the existing change tracking into a temp table*/
select * into cdc.dbo_Table1_temp from cdc.dbo_Table1_CT
/*Add the new column to the temp table so that we don't have to map
all columns when we copy back, note that we use NULL as the default*/
alter table cdc.dbo_Table1_temp add value3 varchar(20) DEFAULT NULL
/*Disable CDC on the source table, this will drop the associated cdc table*/
exec sys.sp_cdc_disable_table
@source_schema='dbo',
@source_name='Table1',
@capture_instance='dbo_Table1'
/*Enable CDC for the table which recreates the CDC table*/
EXEC sys.sp_cdc_enable_table
@source_schema = N'dbo',
@source_name = N'Table1',
@role_name = NULL,
@supports_net_changes = 1,
@filegroup_name = N'ChangeDataCapture'
GO
/*Insert values from the temp table back into the new CDC Table*/
Insert into cdc.dbo_Table1_CT
SELECT *
From cdc.dbo_Table1_temp
go
/*Drop the temp table*/
drop table cdc.dbo_Table1_temp
/*Go back into multi-user mode*/
alter database ChangeDataCaptureTest set AUTO_UPDATE_STATISTICS_ASYNC ON
alter database ChangeDataCaptureTest set MULTI_USER
go
/*Add a new row to the table*/
insert into table1
values(12,'zz','g')
您可能无法将它们放回同一张表中。将它们复制到一个新表中。在检索报告时，'联合'该表以获取以前的记录。 – 2013-01-10 05:03:35