tQVDInput | Talend Components for Jobs Help
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tQVDInput

Reads data from QVD files for use in Talend Studio Jobs.

This component is available for Qlik Talend Cloud Premium Edition and Qlik Talend Cloud Enterprise Edition.

tQVDInput standard properties

These properties are used to configure tQVDInput running in the Standard Job framework.

The Standard tQVDInput component belongs to the File family.

Basic settings

Properties Description
Property type Either Built-in or Repository.
  • Built-in: No property data stored centrally.
  • Repository: Select the repository file in which the properties are stored. The fields that follow are completed automatically using the data retrieved.
Schema and Edit schema

A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. When you create a Spark Job, avoid the reserved word line when naming the fields.

  • Built-In: You create and store the schema locally for this component only.

  • Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

Click Edit schema to make changes to the schema. If you make changes, the schema automatically becomes built-in.

  • View schema: choose this option to view the schema only.

  • Change to built-in property: choose this option to change the schema to Built-in for local changes.

  • Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion.

    If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.

File name Enter the path and name of the QVD file to read.
Guess schema Click this button to infer the schema from the QVD header. You can use the inferred schema as a static schema, or adapt it to a dynamic schema if needed.

Advanced settings

Properties Description
tStatCatcher Statistics Select this checkbox to collect the log data at the component level.
Read as dual Select this checkbox to read QVD dual values as objects. Clear this checkbox to read simple values.

Global Variables

Variables Description
ERROR_MESSAGE The error message generated by the component when an error occurs. This is an After variable and it returns a string.
NB_LINE The number of rows read by an input component or transferred to an output component. This is an After variable and it returns an integer.

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