Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

I have a table that has 2 fields, postDate, and postTime.<BR><BR>I want to select all the the records where<BR><BR>1. the current date is later than the post date.<BR>2. The post time is later than ...

This is likely the simplest thing. I have an SMS report that lists all the software registered in a group of systems Add/Remove Programs list. I would like to modify the SQL SELECT statement that is ...

A query-expression is one or more table-expressions. Multiple table expressions are linked by set operators. The following figure illustrates the relationship between table-expressions and ...

Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how. Simply use the DISTINCT clause and between the SELECT clause and the fields.

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...