ARRAY_AGG Function | Data Types and Literals | Teradata Vantage - ARRAY_AGG - Advanced SQL Engine - Teradata Database

An aggregate function for use with ARRAY data types that allows arrays to be created as part of the SELECT list of a query.

Syntax

[TD_SYSFNLIB.] ARRAY_AGG (
  element_value_expr
  [ ORDER BY value_expression [ ASC | DESC ] ] ,
  array_expression
)

TD_SYSFNLIB.

Name of the database where the function is located.

element_value_expr

An expression that evaluates to an ARRAY element type.

value_expression

An expression that evaluates to a Teradata data type that can be compared.

ASC

Results are to be ordered in ascending sort order.

If the sort field is a character string, the system orders it in ascending order according to the definition of the collation sequence for the current session.

The default order is ASC.

DESC

Results are to be ordered in descending sort order.

If the sort field is a character string, the system orders it in descending order according to the definition of the collation sequence for the current session.

array_expression

An ARRAY expression, which is one of the following:

• A reference to an ARRAY column
• An ARRAY constructor expression
• A UDF expression
• A UDM expression