ispiro ispiro - 1 year ago 70
SQL Question

How do I create a serial number in SQL for INSERT?

I'm saving data to a table, but I also need a column with a serial number. How do I do that? (I'm doing this in C#, perhaps it matters.)

This must be pretty simple, but googling hasn't been successful.

EDIT: I don't want to just save an integer. I want to give SQL a command to create it when saving, because if I create an integer and save it between creating it and saving it – another query might try to save the same number at the same time, and I'll get two entries with the same number.)

Answer Source


    ID         INT IDENTITY

Each time you insert a new record SQL Server will take care of incrementing this value for you (no two records will have the same number, it is unique).

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