MATCHBY

In window functions, defines the columns that are used to determine how to match data and identify the current row.

Syntax

MATCHBY ( [<matchBy_columnName>[, matchBy_columnName [, …]]] )

Parameters

Term Definition
matchBy_columnName (Optional) The name of an existing column to be used to identify current row in the window function’s <relation>.
RELATED() may also be used to refer to a column in a table related to <relation>.

Return value

This function does not return a value.

Remarks

This function can only be used within a window function expression.

Example

See OFFSET.

Understanding ORDERBY, PARTITIONBY, and MATCHBY functions
INDEX
OFFSET
ORDERBY
PARTITIONBY
WINDOW
RANK
ROWNUMBER