What is the difference between " Unique Match","First Match","All Matc

One Star

What is the difference between " Unique Match","First Match","All Matc

What is the difference between " Unique Match","First Match","All Matches" in Match Model of tMap lookup table?
Employee

Re: What is the difference between " Unique Match","First Match","All Matc

Hi,
"Unique" will match with the last key into the lookup, then if you have several rows with the same key, this will the last will match.
Contrary to the "First match" which will match with the first loaded row into the lookup if several rows have same key.
"All matches" : if several matches are found in the Inner Join, i.e. rows matching the explicit join as well as the filter, all of them will be added to the output flow

Calling Talend Open Studio Users

The first 100 community members completing the Open Studio survey win a $10 gift voucher.

Start the survey

2019 GARNER MAGIC QUADRANT FOR DATA INTEGRATION TOOL

Talend named a Leader.

Get your copy

OPEN STUDIO FOR DATA INTEGRATION

Kickstart your first data integration and ETL projects.

Download now

What’s New for Talend Summer ’19

Watch the recorded webinar!

Watch Now

Best Practices for Using Context Variables with Talend – Part 4

Pick up some tips and tricks with Context Variables

Blog

How Media Organizations Achieved Success with Data Integration

Learn how media organizations have achieved success with Data Integration

Read

Agile Data lakes & Analytics

Accelerate your data lake projects with an agile approach

Watch