SCHAUMBURG, Ill., Oct. 30, 2012 /PRNewswire/ -- TrainSignal, the global leader in professional computer training, announced the release of their first SQL Server 2012 training courses. More sectors of ...

These exercises will teach you how to perform temporal aggregation with SQL. The following exercises process data based on the time when events have occurred. The queries consume an append-only stream ...

What is a database query? In a database context, a query is a request for information or data made by a user and written in a specific format. The format is determined by the query language supported ...

When all queries against a SQL Server instance or a particular database application are slow, the cause is often outside any single query. This article helps database administrators and application ...

Structured Query Language (SQL) is a standardized programming language that is used to manage relational databases and perform various operations on the data in them. Initially created in the 1970s, ...

The Microsoft Dataverse business layer provides a Tabular Data Stream (TDS) endpoint that emulates a SQL data connection. The SQL connection provides read-only access to the table data of the target ...

Aggregate functions perform calculations on sets of rows and return a single result per group. It does not matter if a group consists of a single row or many rows. This query counts the total number ...