Maximum length of SQL

Question:
Is there a maximaum length of an SQL program? I have used the query designer in Visual Foxpro 3.0 with many lines of criteria. When I try to run it I get the following error message:

SQL: Statement too long.

If I take out a few lines of criteria, it works. Why would they make a limit on the length of an SQL routine? I even tried to use the “Program” mode and got the same error.

Answer:
The important piece of information when working with large SQL statements in Visual FoxPro is the length of the compiled length of the WHERE clause. There is no way to judge the compiled length from the actual SQL statement: I have seen developers parse the SQL and run several smaller SQL statements that use the result of the previous SQL statements, but this can only occur under controlled circumstances.

Visual FoxPro 6 has a SYS() function that extends this limit.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may