Type mapping - Cloud - 8.0

Talend Studio User Guide

Version
Cloud
8.0
Language
English
Product
Talend Big Data
Talend Big Data Platform
Talend Cloud
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Real-Time Big Data Platform
Module
Talend Studio
Content
Design and Development
Last publication date
2024-02-29

In Talend Studio, there are two data types in the database component schema: the Talend type and the database type. When retrieving the table schema, there is always a default Talend type to map to the real database type, and there is a default database type to map to the Talend type on the database schema, when linking a non-database component to a database output component.

A Talend type is an intermediate Java type, mapped for each data type of different databases. These default data type mappings are configured in an XML file. Each kind of database has a separate mapping configuration file. For example, the file mapping_Mysql.xml maps MySQL data types to Talend types.

By editing the mapping file, you can modify any default data type mapping for your project rather than changing it manually every time, and add new type mappings to server your needs.

You may encounter some issues when working with Talend data types. For more information, see Troubleshooting common Talend data type issues.