tsql - Pre-allocate varbinary(max) without actually sending null data to the SQL Server? -


I am storing data in a varbinary (max) column and, for customer performance reasons, chunking ". (.)

What I want to do is adapt this. I want to allocate prior varbinary columns for the size, for example, if I'm leaving 2MB in the column then I would like to 'allocate' the first column , Again. Write actual data using the offset / length parameter.

Is there anything in SQL which help me here? Obviously I do not want to send a blank byte array on SQL Server, because of this partially. Will end the purpose.

If you are using (max) data type, then overflow a few lines above 8K Goes to storage, not in in-page storage So you need to enter enough data to reach 8K for the line, so that in-page allocation can be picked up for the line, and the remaining line -offo goes anyway in the storage. there are a few.

If you want to allocate everything, which includes row overflow data, then you can use something similar (for example, 10000 bytes): 

  SELECT Convert ([Viburbine] (Max), Copy (Convert (Max), '0'), 10000))

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