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