# tAS400Input

Reads a database and extracts fields based on a query.

tAS400Input executes a DB query with a strictly defined order which must correspond to the schema definition. Then it passes on the field list to the next component via a Row > Main link.

For more technologies supported by Talend, see [Talend components](https://help.qlik.com/talend/r/en-US/7.3/components/as400).

### In this section

* [tAS400Input Standard properties](https://help.qlik.com/talend/en-US/components/7.3/as400/tas400input-standard-properties)

**Related concepts**

[Handling data with AS/400](https://help.qlik.com/talend/en-US/components/7.3/as400/tas400input-tas400output-tfixedflowinput-tlogrow-handling-data-with-as-400-standard-component-this)