Shelley Doll finishes her coverage of SQL data types with an overview of datetime and interval data types. Learn more about the basic syntax of these standard SQL types. Datetimes and intervals are ...

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Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

Complete the following 10 questions using SQL queries against the social media database. Each question requires exactly one query unless otherwise specified. Do not use JOINs or subqueries.

I always look forward to new research from Unisphere Research, a division of Information Today, Inc., publishers of this magazine and other great products for data professionals. The latest report ...

PL/SQL stands for Procedural Language extension of SQL. PL/SQL is a combination of SQL along with the procedural features of programming languages. It was developed by Oracle Corporation in the early ...