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AskSQLTeam
Ask SQLTeam Question
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 Posted - 2002-12-05 : 07:33:41
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| Jhankar writes "Hi, I am facing a peculiar problem. I have to fetch the last 16 records from a db2 table. I can fetch the last 16 records in descending order. But, my requirement is these records in Ascending order.Currently, I have executed this code using two cursors, but this way the nbr of i/o are doubled, and it overloads my systemMy first cursor (CUR 1) reads the table in descending order till i get the 16th key from bottom.Then another cursor (CUR 2) fetches the 16 records in forward manner. So, actually I am using twice the nbr of queries.When I try using the first fetch (CUR 1) to fetch the last 16 records from CUR 2 in ASC order the result set returns the top 16 records from my table. And when I try using the first key of CUR 1 to fetch 16 records from the CUR 2 in DESC order I do get my set but I need to now sort this in ASC order to use it.Is there a way to order this set in ASC w/o doing the double series of fetches?" |
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robvolk
Most Valuable Yak
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Sorting the result set in the cursor in ascending order. 