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collie
Constraint Violating Yak Guru
400 Posts |
 Posted - 2005-01-16 : 14:41:28
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| Hi,I have a table with 2 fields:passport varcharidNo numericI have to display the fields in one columnIf idNo is null then I want to show the passport number in the column but if neither passport or idNo are null then I want to show the idNo.I tried the following select query but it only works if both fields are numeric and i can't change the data type for one of the fields as it will coz huge problems:select idno,passport,(case when idno is null then passport else idno end) as sidfrom studentHow can I make it work with different data types?Thanks |
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nr
SQLTeam MVY
12543 Posts |
Posted - 2005-01-16 : 17:39:28
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| select idno,passport,sid = coalesce(convert(varchar(20),idno),passport)from student==========================================Cursors are useful if you don't know sql.DTS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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collie
Constraint Violating Yak Guru
400 Posts |
Posted - 2005-01-17 : 02:15:02
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Thanks. That worked great  |
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select query