# tBufferInput Retrieves data bufferized via a tBufferOutput component, for example, to process it in another subJob. This component retrieves bufferized data in order to process it in a second subJob. ## tBufferInput Standard properties These properties are used to configure tBufferInput running in the Standard Job framework. The Standard tBufferInput component belongs to the Misc family. The component in this framework is available in all Talend products. ## Basic settings | Properties | Description | | --- | --- | | Schema and Edit Schema | A schema is a row description, it defines the number of fields that will be
processed and passed on to the next component. The schema is either built-in or
remote in the Repository.

Click Edit
schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

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.

In the case of tBufferInput, the column position is more important than the
column label as this will be taken into account.

Built-in: You create the schema and store it locally for this component only. For more information about a component schema in its Basic settings tab, see Basic settings tab.
Repository: You have already created the schema and stored it in the Repository, hence can be reused in various projects and Job designs. For more information about a component schema in its Basic settings tab, see Basic settings tab.

| ## Advanced settings | Properties | Description | | --- | --- | | Advanced separator (for numbers) | Select this check box to insert separators for numbers. You can specify the
thousands separator and the decimal separator in the corresponding
fields. | | Use Base64 (for byte[]) | This option is selected by default and makes sure the Base64 encoding scheme
is used to transfer byte arrays. | | Encoding | Select the encoding from the list or select Custom and define it manually.
This field is compulsory for DB data handling. | | tStatCatcher Statistics | Select this check box to collect log data at the component level. | ## Global Variables | Variables | Description | | --- | --- | | Global Variables | NB\_LINE:
the number of rows processed. This is an After variable and it returns an integer.

ERROR\_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error checkbox is
cleared, if the component has this checkbox.

A Flow variable functions during the execution of a component
while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl+Space to access the variable list and choose the variable to use from
it.

For more information about variables, see [Using contexts and variables](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables). | ## Usage | Usage guidance | Description | | --- | --- | | **Usage rule** | This component is the start component of a secondary Job which is triggered
automatically at the end of the main Job. | **Related concepts** * [Retrieving bufferized data](https://help.qlik.com/talend/en-US/components/8.0/buffer/tbufferinput-tbufferoutput-tfileinputdelimited-tlogrow-retrieving-bufferized-data-standard-component-this)