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Does uploading a 1MB file into SQL 2005 locks the table?

Does uploading a 1MB file into SQL 2005 locks the table and block others from uploading to the same table? Does it block queries against that table?
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Daniel WilsonCommented:
It should not block other inserts.  Now if your upload is more complicated & does some comparison to what's already there, the could block.

Depending on the criteria your SELECT uses, it could block while you insert the data.
mattphungAuthor Commented:
So for example, if I'm uploading an email attachment and another user logs into the email system and trys to download an attachment from the same table by using this statement:

Select * from Attachment (nolock) where AttachmentId = @Id

Does the statement above execute without waiting for the upload to complete? Thanks
Daniel WilsonCommented:
Someone may correct me on this, but I believe you are fine with that WHERE clause UNLESS @ID is the ID of the new record.
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