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  1. #1
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    sql

    how to generate an error in sql when entered wrong information

  2. #2
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    that's a very vague question -- can you please be a little more specific?

    all database systems have methods for ensuring the accuracy of data, and on top of that, the programming languages which drive the application also have means for editing and rejecting invalid data

    could you start by telling us more about your specific issue?
    rudy.ca | @rudydotca
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