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  Tutorial: ASP Database Related Analyzing Duplicate Records Tutorial

This is the first of the four-part 'Advanced SQL Techniques' series, which describes a quick and efficient way to delete duplicate records from a table.

Tutorial Details:

Analyzing Duplicate Records With ASP

This article offers an analysis of Structured Query Language (SQL) and presents techniques that can be used in building SQL statements. People tend to think of SQL as a programming language, but in reality, SQL is a Set language. One could say SQL is Set Theory or Relational Algebra; these terms are interchangeable. Some people think of this in terms of Venn diagrams or DeMorgan's Law. Although those can be quite complicated, the basic forms are not difficult to understand. The cases presented here are intended for certain circumstances, but they can be applied to many situations. Each article in this four-part series will address one case.

Deleting Duplicate Records

The following is an analysis of records in a table, some of which may be duplicated. Many different things can be accomplished with this method, including looking for duplicates, looking for records that are duplicated n times, deleting duplicates, etc.



 

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ASP Database Related Analyzing Duplicate Records Tutorial

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