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.

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 ...

Assign a value to a variable in a "SELECT" statement:SELECT @fruit1, @fruit2, @fruit3, @fruit4:='mango';You must use ":=" if you are assigning a value to a variable in any other type of statement ...

Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how.

It's critical to understand that FromSql is much more limited than SqlQuery in terms of what it can return. SqlQuery, which was available from the DbContext's Database object, allowed you to submit ...

How to Check to See if a Record Exists in Oracle. Though SQL (Structured Query Language) for databases has proved to be indispensable through decades of use, differences among SQL versions can ...

Here's the best performing option when you're retrieving the objects at the end of an entity class's navigation property, either when you only want some of the objects or when you only want them some ...