I'm using Access 2003 and have a CHOOSE function in a query. I can use up to 28 values with no problem, but when I add the 29th value,I get the message "The expression you entered is too complex". I thought the limit was something like 256 values but I'm thinking I'm at the max with 28. I've received this same message when I try to nest too many IIF statements. Any suggestions?
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If you are using that many choose options it sounds like you might benefit from using a sub-query or vba code. Without more details on what you are trying to accomplish and how, we can't really provide any more usefull help. -
My suggestion would be to put the choices into a table when they get to more than three or four. Benefits are that the design is much clearer and the execution is much quicker. A natural follow-on from the first point is that it's easier to maintain in the longer term too.
Using Choose() rather than IIf() is a good sign that you're thinking about what you do mind.Comment
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