5
當一個新的列被添加到被配置成用於變更數據捕獲（CDC）表中，捕獲實例表不會有新列直到CDC被禁用，並且重新啓用源表。在這個過程中，現有的捕獲實例被刪除。Sql Server更改數據捕獲：添加列時保留歷史記錄？
我以爲我可以現有的數據複製出一個臨時表，然後複製回使用以下SQL。但是，其他CDC元信息（例如cdc.change_tables.start_lsn）無效。
如何捕獲實例歷史記錄保存，使用相同的捕獲實例的名稱，如果在所有？
感謝， 豐富
/*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')
您可能無法將它們放回同一張表中。將它們複製到一個新表中。在檢索報告時，'聯合'該表以獲取以前的記錄。 – 2013-01-10 05:03:35