troubleshooting Question

Can't nest InStr in a Left function

Avatar of Laurence Martin
Laurence MartinFlag for United Kingdom of Great Britain and Northern Ireland asked on
Microsoft AccessSQL
9 Comments2 Solutions82 ViewsLast Modified:
Why doesn't this expression work in an Access Query?

Postcode 1: Left(Trim([Clients].[Postcode]),InStr(1,[Clients].[Postcode]," ")-1)

I am getting an error that the expression is too complex.

If I put the InStr in a column of it's own and the Left with a constant for the length, they both work.

What I need to do is show the first part of the postcode.  In the UK we have postcodes (zipcodes) that have a space in the middle eg: NW1 4FS or B1 2GT or WC1Y 3CE.
Is there another way to parse the string?

Could it be data related?  There are some postcode fields that are empty or don't have a space
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