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Number of rows in a ResultSet

 
Warren Bell
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How do you find out how many rows there are in a ResultSet without running through every row and counting them?
 
SJ Adnams
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what I've done in the past is to alias the rownum & order it desc in a subquery. that way you get the total number of rows of the query in the very first row.
I'm sure there are better ways - I guess it depends if you prefer to load the rdbms or the application.
Simon
 
It is sorta covered in the JavaRanch Style Guide.
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