tMap vs tJoin -Talend

 tMap is frequently used component for joins and lookup purpose, it is also use for verity of operations and transformations, whereas tJoin is used for join and lookups only.

tMap	tJoin
It accepts more than one input one is main and rests of the lookups.	It accepts only two inputs and only one is main and other one is lookup.
We can create more than one output	It has two default outputs one is “Main” and another one is ” Inner join reject”
tMap has “inner join ” and ” left outer join” joining model	tJoin offer`s only “inner join”
tMap offers three match model Unique Match First Match All Matches	tJoin defaulted with Unique match
tMap allows to store data on file option for lookup data processing	tJoin doesn`t offer this feature
In tMap you can filter data using filter expression	tJoin doesn`t offer this feature
You can write transformation using expression builder at each column level	tJoin doesn`t offer this feature