# tPostgresPlusSCD Standard properties These properties are used to configure tPostgresPlusSCD running in the Standard Job framework. The Standard tPostgresPlusSCD component belongs to the Business Intelligence and the Databases families. The component in this framework is available in all Talend products. Information noteNote: This component is a specific version of a dynamic database connector. The properties related to database settings vary depending on your database type selection. For more information about dynamic database connectors, see [Dynamic database components](https://help.qlik.com/talend/r/en-US/7.3/components/db-generic/dynamic-database-components). ## Basic settings | Database | Select a type of database from the list and click
Apply. | | --- | --- | | Use an existing connection | Select this check box and in the Component
List drop-down list, select the desired connection component to
reuse the connection details you already defined.

Information noteNote: When a Job contains the parent Job and the child Job, if you
need to share an existing connection between the two levels, for example, to share the
connection created by the parent Job with the child Job, you have to:

  1. In the parent level, register the database connection to be shared in the Basic settings view of the connection component which creates that very database connection.

  2. In the child level, use a dedicated connection component to read that registered database connection.



For an example about how to share a database connection
across Job levels, see *Talend Studio
User Guide*. | | Property type | Either Built-in or Repository. | | | Built-in: No property data stored
centrally. | | | Repository: Select the Repository file where
Properties are stored. The following fields are pre-filled in using fetched
data. | | DB Version | List of database versions. | | Server | Database server IP address. | | Port | Listening port number of DB server. | | Database | Name of the database. | | Schema | Name of the DB schema. | | Username and Password | DB user authentication data.

To enter the password, click the [...] button next to the
password field, and then in the pop-up dialog box enter the password between double quotes
and click OK to save the settings. | | Table | Name of the table to be written. Note that only one table can be written at a
time. | | 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 the current schema is of the Repository type, three options are available:

| | | Built-in: The schema is created and stored
locally for this component only. Related topic: see *Talend Studio User
Guide*. | | | Repository: The schema already exists and is
stored in the Repository, hence can be reused. Related topic: see *Talend Studio User
Guide*. | | SCD Editor | The SCD editor helps to build and configure the data flow for slowly changing
dimension outputs.

For more information, see [SCD management methodology](https://help.qlik.com/talend/en-US/components/7.3/scd/scd-management-methodology). | | Use memory saving Mode | Select this check box to maximize system performance. | | Source keys include Null | Select this check box to allow the source key columns to have Null values.

Information noteWarning:

Special attention should be paid to the uniqueness of the source key(s) values
when this option is selected. | | Die on error | This check box is cleared by default, meaning to skip the row on error and to
complete the process for error-free rows. | ## Advanced settings | Additional JDBC Parameters | Specify additional JDBC parameters for the
database connection created.

This property is not available when the Use an existing connection
check box in the Basic settings view is selected. | | --- | --- | | End date time details | Specify the time value of the SCD end date time setting in the
format of *HH:mm:ss*. The default
value for this field is *12:00:00*.

This field appears only when SCD Type 2 is used and
Fixed year value is selected for creating the SCD
end date. | | Debug mode | Select this check box to display each step during processing entries in a
database. | | tStatCatcher Statistics | Select this check box to collect log data at the component level. | ## Global Variables | Global Variables | NB\_LINE\_UPDATED: the number of rows updated.
This is an After variable and it returns an integer.


NB\_LINE\_INSERTED: the number of
rows inserted. This is an After variable and it returns an integer.


NB\_LINE\_REJECTED: the number of rows rejected. 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 check box
is cleared, if the component has this check
box.

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 further information about variables, see *Talend Studio*
*User Guide*. | | --- | --- | ## Usage | **Usage rule** | This component is used as Output component. It requires an
Input component and Row main link as input. | | --- | --- | | Dynamic settings | Click the [+] button to add a row in the table
and fill the Code field with a context
variable to choose your database connection dynamically from multiple
connections planned in your Job. This feature is useful when you need to
access database tables having the same data structure but in different
databases, especially when you are working in an environment where you
cannot change your Job settings, for example, when your Job has to be
deployed and executed independent of Talend Studio.

The Dynamic settings table is
available only when the Use an existing
connection check box is selected in the Basic settings view. Once a dynamic parameter is
defined, the Component List box in the
Basic settings view becomes unusable.

For examples on using dynamic parameters, see [Reading data from databases through context-based dynamic connections](https://help.qlik.com/talend/r/en-US/7.3/components/defining-context-groups/reading-data-from-databases-through-context-based-dynamic-connections) and [Reading data from different MySQL databases using dynamically loaded connection parameters](https://help.qlik.com/talend/r/en-US/7.3/components/context/reading-data-from-different-mysql-databases-using-dynamically-loaded-connection-parameters). For more information on Dynamic
settings and context variables, see Talend Studio
User Guide. | | Limitation | This component does not support using SCD type 0 together with other
SCD types. |