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AskSQLTeam
Ask SQLTeam Question
0 Posts |
 Posted - 2005-05-02 : 07:28:18
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| Ron Darrell writes "Hi I have a table with a unique autokey. An email with an excel attachment arrives each day and using a programme I grab the data and add it to the table. The problem is that this can be done again and again so I keep adding the data even though it's useless. I need to check for duplicates based on a date field. How do I do this withoput checking the whole database 100,000 records and growing?" |
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JimL
SQL Slinging Yak Ranger
1537 Posts |
Posted - 2005-05-02 : 07:49:01
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| An ounce of prevention.TAke the "excel" attachment and dump it it into a temp DB then test against The existing table and drop the dupe before appending it.JimUsers <> Logic |
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Checking for duplicates but not reducing speed