Configuring the key generation for the second pass - 7.0

Data matching

author
Talend Documentation Team
EnrichVersion
7.0
EnrichProdName
Talend Big Data Platform
Talend Data Fabric
Talend Data Management Platform
Talend Data Services Platform
Talend MDM Platform
Talend Real-Time Big Data Platform
task
Data Governance > Third-party systems > Data Quality components > Matching components > Data matching components
Data Quality and Preparation > Third-party systems > Data Quality components > Matching components > Data matching components
Design and Development > Third-party systems > Data Quality components > Matching components > Data matching components
EnrichPlatform
Talend Studio

Procedure

  1. Double-click the second tGenKey to open the Component view.
  2. In the Algorithm table, define the column you want to use to partition data, account_num in this component. Select the first N characters of the string algorithm and set the value to 1 in the Value column.
    Each of the two tGenKey components will generate a read_only T_GEN_KEY column in the output schema. You must rename one of theT_GEN_KEY columns to stop them from overwriting each other.
  3. Double-click the tMap component to open its editor.
  4. In the Schema editor, copy the columns from the first table onto the second table and rename T_GEN_KEY to T_GEN_KEY1, for example.
  5. In the top part of the editor, drop all columns from the input table to the output table.
  6. Click Ok to save data transformation and close the editor.
  7. In the tGenKey basic settings, click the button to verify that the two generated keys are named differently in the output schema.