To retrieve multiple records associated with a particular customer from the OrderDetails data extension, the LookupRows and LookupOrderedRows functions are suitable. These functions return a rowset containing the records that match the specified criteria.

LookupRows: Retrieves a rowset of records based on specified criteria.

Example:

ampscript

Copy code

SET @rows = LookupRows('OrderDetails', 'CustomerID', @customerID)

LookupOrderedRows: Retrieves a rowset of records based on specified criteria and allows for sorting.

Example:

SET @rows = LookupOrderedRows('OrderDetails', 0, 'OrderDate DESC', 'CustomerID', @customerID)

: Salesforce AMPscript LookupRows