Do you ever find yourself juggling queries to get the information you need? Subselects, also called subqueries, may be just what you’ve been looking for. This SQL feature allows you to query ...

Dino Esposito explains JSON-to-rowset native support in SQL Server 2016 and provides a realistic perspective of data query when you have JSON data stored in the database.

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

Return the SQL only, do not include explanations.” The following function creates a query in that type of format, taking arguments for the data schema, sample rows, user query, and table name.

Due to zero-based counting, indexes 1 and 2 map to the second and third columns in the Player table, which are the handle and the emailAddress. When the code builds and runs, the output is as follows: ...

One of the most common problems when running SQL Servers is slow queries. The help desk or database team usually hears that described as the application is slow or the database is slow. In the ...

How to Create a Table From Query Results in Microsoft SQL. If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results.

Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Threat Detection is a feature that watches the patterns of queries being executed and looks for anomalies like people trying to do SQL injection attacks against dynamic SQL in your application.

Here's a look at different ways to query Hadoop via SQL, some of which are part of the latest edition of MapR's Hadoop distribution ...