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AskSQLTeam
Ask SQLTeam Question
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 Posted - 2002-06-11 : 10:17:18
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| Kevin writes "I have a table that is made up of 2 unique types of rows say ROW type1's and ROW type2's. What I must do is walk through my table comparing my current row with the prior row. If I have a ROW type 1 followed by a ROW type 2. I want to compare the current with the prior. If the key information is the same between the 2. I want to take the information from my Type 1 record and update the current record (which is a type 2) with this information. If I compare the 2 rows and thet are both type 1's. I want to advance one row were my current is now my prior and I have a new current record etc. I have been looking at using a cursor type solution but unfortunately I am not getting enough info out of my text book or the ON-line books to try and satisfy this problem. Is using a cursor the proper way to go or are there other solutions available? Thanks Kevin" |
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Page47
Master Smack Fu Yak Hacker
2878 Posts |
Posted - 2002-06-11 : 10:21:56
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| There is a set based solution to this that will (most likely) perform much better than a cursor. Please post the DDL of your table (CREATE TABLE statement) and the DML (INSERT statements) to populate it with sample data. If I understand your need correctly, I can show you how to do this with one UPDATE statement.<O> |
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Should I use a cursor or not - If not what process