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Copy a big table (250G) form one server to another


Copy a big table (250G) form one server to another

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Minaz Amin
Minaz Amin
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Jeff Moden (3/4/2013)
In that case, you might try what SQL Server itself uses for replication if you have the disk space. BCP in native format. Export the table to a file, then import it in half million (or less depending on the size of your rows) row chunks using the batch size setting. It will keep your log file from exploding.

As an alternative, you could have the infrastructure folks do what I believe is called a "SAN Snapshot" to copy the mdf and ldf files and then simply attach the database.


As jeff sugested , taking a SAN snapshot and then attaching the mdf / ldf file could save time and will be a good approach.

"More Green More Oxygen !! Plant a tree today"
Dung Dinh
Dung Dinh
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I have some recommends here:
1-Choose the point time when your server does not work hard
2-Separate your table into smaller pieces (may be multiple files) and using a package to transform data
Sqlsavy
Sqlsavy
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Did you try Import/export option of SQL when server is not too busy?
csalazar-607991
csalazar-607991
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Hi,

We decided to insert the info using

BEGIN TRANSACTION

INSERT INTO DB2.dbo.Table
SELECT *
FROM DB1.dbo.Table
WHERE CodigoCaso < @cont and CodigoCaso > @ultimo

SET @ultimo = @cont
SET @cont = @cont + 1000

COMMIT TRANSACTION

In order to avoid a huge increase in the log file.

I will post the result

Thanks
Go


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