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Language: Visual FoxPro
Expertise: Beginner
Nov 16, 1999



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Basic FoxPro SQL

I'm trying to retrieve eight fields from four FoxPro tables via on-the-fly SQL from an ASP page... and I'm not familiar with FoxPro SQL.

The following doesn't work, but represents what I'd like to pull off:

CPSQL = "SELECT Part.SSN, Part.Plan_ID, Part.FirstName & ' ' & Part.Last_Name AS Name, "
CPSQL = CPSQL & "Fund.Fund_Desc, Holdings.Units, Unitval.Unit_Val, "
CPSQL = CPSQL & "(Holdings.Units * Unitval.Unit_Val) AS Balance ; "
CPSQL = CPSQL & "FROM Part, Holdings, Fund, UnitVal ; "
CPSQL = CPSQL & "WHERE Holdings.SSN = Part.SSN AND Part.Plan_ID = Holdings.Plan_ID "
CPSQL = CPSQL & "AND Holdings.Plan_ID = UnitVal.Plan_ID AND Holdings.Fund_ID = " 
CPSQL = CPSQL & "UnitVal.Fund_ID; AND Holdings.As_of_Date = Unitval.As_of_Date "
CPSQL = CPSQL & "AND UnitVal.Fund_ID = Fund.Fund_ID;"
Sorry if this is formatted strangely; I hope you can widen the screen when you view it. What am I missing? Do I need to split this out a bit?

VFP uses "&" to denote macro expansion, "+" for concatenation, and ";" to denote line continuation. The first line of code you provided is attempting to create a field called "name," which is a concatenation of first name followed by a space followed by last name. Therefore you need to replace the "&"s with "+"s within the string.

You need to change the first line of code to this:

CPSQL = "SELECT Part.SSN, Part.Plan_ID, Part.FirstName + ' ' + Part.Last_Name AS Name, "
Your code also contains semicolons (;) in the string. Remove them.
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