Transact SQL Functions
Funciones de Transact SQL

Tipo de Función Type of Function	Descripción Description
Aggregate	Generate summary values that appear as new columns in the query results
Datatype Conversion	Change expressions from one datatype to another and specify new display formats for date/time information
Date	Do computations on datetime and smalldatetime values and their components, date parts
Mathematical	Return values commonly needed for operations on mathematical data
Row Aggregate	Generat summary values that appear as additional rows in the query results
String	Operate on binary dat, character strings, and expressions
System	Return special information from the databse
text/image	Supply values commonly needed for operations on text and image data

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