In general parlance, a query is a formal question. In the database industry, a query is a request for data from a database. In fact, the SQL in SQL Server stands for structured query language, which was designed specifically for the purpose of making queries. Writing queries in SQL is simple and intuitive, and queries can be designed in a variety of ways to retrieve specific information from a database.

The two basic types of queries are select queries or action queries. A select query is a basic data retrieval query. An action query typically calls for further operations on the data, such as insertion, updating, or deletion, for example.

Query by example is a method of forming queries in which the database displays a blank record or template with a space to enter query data for each field. Users can enter specific  conditions for each field to be included in the query (greater than, less than, older than, etc).  QBE is relatively simple and effective method to query a database, but inherently not as flexible and robust as querying via a query language such as SQL.

Idera understand queries. As an industry leader in the SQL Server database industry, Idera offers a number of popular products to allow you easily produce and track queries across all your databases. SQL Diagnostic Manager provides tools for both query performance monitoring and query performance tuning. Idera’s SQL Admin Toolset also provides a Multi Query tool to make it easy to query multiple SQL Server instances and databases.