If I have several fields:
a | b | c | d | e

and the original SQL = SQL & " ORDER BY a ASC ".

I want to place links to b, c, d, e to make the table of results to show by ascending order of b (or , c, d, e).

do I need to place an "if/ end if" in the sql or do I put some statement in the paging?

example
a (ORDER BY a ASC)| b | c | d | e
1 | 3 | z
2 | 2 | y
3 | 1 | x
4 | 5 | w
5 | 4 | v

to

a | b (ORDER BY b ASC)| c | d | e
3 | 1 | x
2 | 2 | y
1 | 3 | z
5 | 4 | v
4 | 5 | w

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Yes, you need to have a way to retain the selected field, and when you create your SQL string, yes, you need an if statement determining which field was clicked. You can use the Session to persist the selection of the column.

Brian