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How to read only two rows at a time by ordering it

HOw could I take an average of two values by arranging the data in ascending order using SQL. For example

For the Col "Var1" with data

TrackId Var1
1 1.2
2 1.1
3 1.5
4 1.6
5 1.3

By prakash5801, 04 Jun 2010 | Tagged: general udf sql assistant analytics | 2 comments