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oahu9872
Posting Yak Master
112 Posts |
 Posted - 2006-11-06 : 16:22:16
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| I have a table with about 2.8 million records and i suspect there may be a few thousand duplicates. there's too many records to do a simple group by, so is there a better way to do this. this is what i tried but the syntax was rejected...SELECT TDN FROM ALL_TN_STATWHERE COUNT(TDN) > 1So I need to find in table ALL_TN_STAT how many records have duplicate TDN fields. Thanks |
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stephe40
Posting Yak Master
218 Posts |
Posted - 2006-11-06 : 16:32:07
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| [code]SELECT TDN, count(*)FROM ALL_TN_STATgroup by TDNhaving count(*) > 1[/code]- Eric |
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oahu9872
Posting Yak Master
112 Posts |
Posted - 2006-11-06 : 16:42:19
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| great, thanks |
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Duplicate Records