A database query is a way of requesting information from the database.
<u>Regardless of the database or query language used, there are two primary types of queries that can be used for different goals:</u>
-Select queries return information from one or more tables. While this is the most basic type of query, select queries can be used to specify how many results are returned, the order in which they appear, the source(s) used, and the parameters for a record to be included.
-Action queries perform a command on the data that has been retrieved, such as delete, alter, create, or update. This query allows a user to modify a large number of records in bulk instead of one at a time.
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