Import unprocessed rows only

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Import unprocessed rows only

PSB

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Points: 13195
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October 5, 2010 at 8:22 am

#227304

Hi,
I have a staging table named A and a main table named MainTable. I need to import the unprocessed rows from the staging to the main table.
Below is the a sample Table A
CREATE TABLE [dbo].[Files](
[CMD_File_ID] [bigint] IDENTITY(1,1) NOT NULL,
[CMD_File_Name] [varchar](255) NOT NULL,
[CMD_File_Date_Loaded] [datetime] NOT NULL)
CREATE TABLE [dbo].[A](
[A_ID] [bigint] IDENTITY(1,1) NOT NULL,
[File_ID] [bigint] NOT NULL,
[Has_Errors] [bit] NOT NULL,
[Entity_Name] [varchar](100) NULL,
[Entity_TIN] [varchar](50) NULL,
[Entity_NPI] [varchar](10) NULL
)
CREATE TABLE [dbo].[MainTable](
[Staging_Entity_ID] [bigint] IDENTITY(1,1) NOT NULL,
[File_ID] [bigint] NOT NULL,
[Has_Errors] [bit] NOT NULL,
[Entity_Name] [varchar](100) NULL,
[Entity_TIN] [varchar](50) NULL,
[Entity_NPI] [varchar](10) NULL
)
How do I do that ?

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ChrisM@Work SSC Guru Points: 186127 More actions · Answer 1

How do you detect whether or not a row from staging has been "processed"?

What is table [dbo].[Files] for? You haven't mentioned it in your dialogue.

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Steve Jones - SSC Editor SSC Guru Points: 736270 More actions · Answer 2

Also, how do you import rows now? What is used to "process" a row?

Show some code, and we'll help. However we are not here to do the work for you.

Ron McCullough SSC Guru Points: 63877 More actions · Answer 3

Might I suggest that you examine the MERGE statement. You can start here:

http://technet.microsoft.com/en-us/library/cc879317.aspx

And then if you have difficulties, repost including sample data, desired results, and the T-SQL statement(s) you have developed.

If everything seems to be going well, you have obviously overlooked something.

Ron

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