Re: get row count from a "cursor resultset"
От | Oliver Jowett |
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Тема | Re: get row count from a "cursor resultset" |
Дата | |
Msg-id | 42CC5C41.90306@opencloud.com обсуждение исходный текст |
Ответ на | Re: get row count from a "cursor resultset" (Oliver Jowett <oliver@opencloud.com>) |
Ответы |
Re: get row count from a "cursor resultset"
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Список | pgsql-jdbc |
Oliver Jowett wrote: > Maik Wiege wrote: > >>I didn't find a solution for this, but there must be, because the pgAdmin III - tool does this. After starting the queryin the SQL-Dialog it asks wether to retrieve just the first 100 results or all results displaying the corect amountof found rows. Or is this just not possible with jdbc. > > > I'd point out that this does not require knowing exactly how many rows > there are -- only that there are more than 100. You can do the > equivalent in JDBC easily by setting fetchsize to 100 or so and calling > next() 100 times.. if you haven't hit the end of the resultset by that > point, it has more than 100 rows. Oh, sorry, my mistake -- I misread your description. Perhaps they are using either COUNT(*) in the same query or MOVE to get the number of rows. -O
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