URL details: sqlstudies.com/2017/06/19/adding-identity-to-an-existing-column/#secondary-content
URL title:
Adding Identity to an existing column | SQL Studies
URL description:
A friend had an interesting problem today. A really big table (multiple millions of rows) and no primary key. He then ran into an issue where he had to have one. The easiest thing is to create a new int column with an identity column right? Unfortunately in this case because of the size of…
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