# PostgreSQL validation components

| [tPostgresqlInvalidRows](https://help.qlik.com/talend/en-US/components/8.0/postgresql-validation/tpostgresqlinvalidrows) | Extracts DB rows that do not match a given data quality pattern, you can then<br>implement any required correction. |
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| [tPostgresqlValidRows](https://help.qlik.com/talend/en-US/components/8.0/postgresql-validation/tpostgresqlvalidrows) | Extracts DB rows that match a given data quality pattern. |