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rookie_sql
Constraint Violating Yak Guru
443 Posts |
 Posted - 2009-07-15 : 11:47:18
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| Hi i need to work out a way for adding in a seq_no for a references number. I can have multiple references number what i need is like the below so the ref & seq_no are unique.ref_no seq_no 1 11 22 12 22 33 14 14 25 1 5 2 |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2009-07-15 : 12:50:06
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| [code]SELECT ref_no,ROW_NUMBER() OVER (PARTITION BY ref_no ORDER BY ref_no) AS seq_no FROM Table[/code] |
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rookie_sql
Constraint Violating Yak Guru
443 Posts |
Posted - 2009-07-16 : 04:47:19
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| HEY CAN I USE ROW_NUMBER() IN A UPDATE STATEMENT ? |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2009-07-16 : 05:05:01
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UPDATE fSET seq_no = recidFROM (SELEC seq_no, row_number() Over (partition by ref_no order by ref_no) as recid) AS f
N 56°04'39.26"E 12°55'05.63" |
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Update ref_no with seq numbers