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Auto generated primary key


Auto generated primary key

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dilakshan31
dilakshan31
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Ok guys, I'm a student, new to sql and really need help. How do u auto generate your primary key? I'm my case its 'event Id' note old sql. Think its 2003
GilaMonster
GilaMonster
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No such thing as SQL 2003.

There are many ways to generate artificial primary keys (keys that have no meaning within the data), there's also the option not to use an artificial primary keys but rather choose one of the candidate keys from the data as the primary key.
Can you be a little clearer what you're asking?

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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dilakshan31
dilakshan31
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Ok they have asked us to create a database which I have and now I need to create a table. They ask for event I'd to be unique and then ask for it to be auto generated
Lynn Pettis
Lynn Pettis
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dilakshan31 (3/12/2012)
Ok they have asked us to create a database which I have and now I need to create a table. They ask for event I'd to be unique and then ask for it to be auto generated


Who is this "they" you are talking about?

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Lynn Pettis

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GilaMonster
GilaMonster
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Can you be more specific?

What is the requirements for the EventID? What's it going to be used for? (if nothing, why do 'they' care about how it's generated)?

Gail Shaw
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dilakshan31
dilakshan31
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Its part of my project I have. I have no clue on how to do this
GilaMonster
GilaMonster
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Without clearer explanations, we're not likely to have a clue either. Have you asked the teacher/lecturer?

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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dilakshan31
dilakshan31
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That's all they ask me to do. Event I'd is an attribute in table. Which will be primary key. And now needs to be auto generated
Lynn Pettis
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Would still like to know who this "they" is.

Look up identity columns in Books Online.

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Lynn Pettis

For better assistance in answering your questions, click here
For tips to get better help with Performance Problems, click here
For Running Totals and its variations, click here or when working with partitioned tables
For more about Tally Tables, click here
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