types of match modules in tmap

Unique Match	First Match	All match
In this mode, only the first occurrence of a matching record in the output table is considered.	This mode is similar to the Unique Match module,as it also selects the first occurrence of a matching record.	In the All Match mode, all matching records from the input table are considered.
It ensures that each record from the input table is matched with a unique record in the output table.	However, unlike Unique Match, it allows multiple records from the input table to match with the same record in the output table.	It enables multiple matches for a record in the output table, allowing all matching records from the input to be associated with it.
If multiple records in the inp.ut table match the same record in the output table, only the first match is retained	In this mode, all the matching records from the input table are included in the output, but only the first occurrence is marked as a match.	This mode can result in a one-to-many relationship between input and output records, where one output record may have multiple corresponding input records.
Unique match option gives the last matching record in the lookup table.	First match option gives the first matching record in the lookup table.	All match option gives all matching record in the lookup table.