From: Sean on 12 Jan 2010 09:36 I have a table full of items, below is one example from the table. I am trying to do a query that will display the longest dimension (as L1) for each item. Item field is text, all others are numbers. Here is my data: Item = Y10227 ItemLength = 8.375 ItemWidth = 9.25 ItemHeight = 5.125 Here is the field in my query to determine the largest of the dimensions: L1: IIf([ItemLength]>[ItemHeight] And [ItemWidth],[ItemLength],IIf([ItemHeight]>[ItemLength] And [ItemWidth],[ItemHeight],IIf([Itemwidth]>[itemheight] And [itemlength],[itemwidth]))) The result I am getting is L1 = 8.375 which is not the largest of the dimensions, ItemWidth at 9.25 is. What am I missing? Thanks, From: vanderghast on 12 Jan 2010 09:49 You have use the complete formulation, not the shortened one, ie. ItemLength>[ItemHeight] And ItemLength>[ItemWidth] not ItemLength>[ItemHeight] And [ItemWidth] So: switch( ItemLength>=ItemHeight And ItemLength>=ItemWidth, ItemLength, itemHeight >= ItemWidth, itemHeight, true, itemWidth ) Note that switch arguments work in pair, returning the second element of the first pair having its first element evaluate to true. It is somehow easier to maintain a switch than multiple iif. Also note that if ItemLength>=ItemHeight And ItemLength>=ItemWidth is false, then either Height either Width is the maximum, so it is not necessary to compare Length again, so only a test like itemHeight >= ItemWidth is necessary, in this case, and if it is ALSO false, then Width is necessary the maximum value, so no test is required, thus our last 'pair' : true, itemWidth. Vanderghast, Access MVP "Sean" wrote in message news:2368FD28-6226-4036-9B3A-B5171A9B18CC(a)microsoft.com...>I have a table full of items, below is one example from the table. I am > trying to do a query that will display the longest dimension (as L1) for > each > item. Item field is text, all others are numbers. > > Here is my data: > Item = Y10227 > ItemLength = 8.375 > ItemWidth = 9.25 > ItemHeight = 5.125 > > Here is the field in my query to determine the largest of the dimensions: > L1: IIf([ItemLength]>[ItemHeight] And > [ItemWidth],[ItemLength],IIf([ItemHeight]>[ItemLength] And > [ItemWidth],[ItemHeight],IIf([Itemwidth]>[itemheight] And > [itemlength],[itemwidth]))) > > The result I am getting is L1 = 8.375 which is not the largest of the > dimensions, ItemWidth at 9.25 is. What am I missing? > > Thanks, > >