tPostgresqlOutputBulkExec Standard properties - 7.0

PostgreSQL

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Talend Documentation Team
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7.0
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Data Governance > Third-party systems > Database components > PostgreSQL components
Data Quality and Preparation > Third-party systems > Database components > PostgreSQL components
Design and Development > Third-party systems > Database components > PostgreSQL components
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Talend Studio

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

The Standard tPostgresqlOutputBulkExec component belongs to the Databases family.

The component in this framework is available in all Talend products.

Note: 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.

Basic settings

Database

Select a type of database from the list and click Apply.

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.

DB Version

List of database versions.

Host

Database server IP address.

Currently, only localhost, 127.0.0.1 or the exact IP address of the local machine is allowed for proper functioning. In other words, the database server must be installed on the same machine where the Studio is installed or where the Job using tPostgresqlOutputBulkExec is deployed.

Port

Listening port number of DB server.

Database

Name of the database

Schema

Name of the 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 and that the table must exist for the insert operation to succeed.

Action on table

On the table defined, you can perform one of the following operations:

None: No operation is carried out.

Drop and create table: The table is removed and created again.

Create table: The table does not exist and gets created.

Create table if not exists: The table is created if it does not exist.

Drop table if exists and create: The table is removed if already exists and created again.

Clear a table: The table content is deleted.

File Name

Name of the file to be generated and loaded.

Warning:

This file is generated on the machine specified by the URI in the Host field and it should be on the same machine as the database server.

Schema and Edit Schema

A schema is a row description, it defines the number of fields to be processed and passed on to the next component. The schema is either Built-in or stored remotely 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.

 

Built-In: You create and store the schema locally for this component only. Related topic: see Talend Studio User Guide.

 

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs. Related topic: see Talend Studio User Guide.

When the schema to be reused has default values that are integers or functions, ensure that these default values are not enclosed within quotation marks. If they are, you must remove the quotation marks manually.

For more details, see Verifying default values in a retrieved schema.

Advanced settings

Action on data

On the data of the table defined, you can perform:

Bulk Insert: Add multiple entries to the table. If duplicates are found, job stops.

Bulk Update: Make simultaneous changes to multiple entries.

Copy the OID for each row

Retrieve the ID item for each row.

Contains a header line with the names of each column in the file

Specify that the table contains header.

Encoding

Select the encoding from the list or select CUSTOM and define it manually. This field is compulsory for DB data handling.

File type

Select the type of file being handled.

Null string

String displayed to indicate that the value is null..

Row separator

String (ex: "\n"on Unix) to distinguish rows.

Fields terminated by

Character, string or regular expression to separate fields.

Escape char

Character of the row to be escaped.

Text enclosure

Character used to enclose text.

Activate standard_conforming_string

Activate the variable.

Force not null for columns

Define the columns nullability.

Force not null: Select the check box next to the column you want to define as not null.

tStatCatcher Statistics

Select this check box to collect log data at the component level.

Enable parallel execution

Select this check box to perform high-speed data processing, by treating multiple data flows simultaneously. Note that this feature depends on the database or the application ability to handle multiple inserts in parallel as well as the number of CPU affected. In the Number of parallel executions field, either:
  • Enter the number of parallel executions desired.
  • Press Ctrl + Space and select the appropriate context variable from the list. For further information, see Talend Studio User Guide.

Note that when parallel execution is enabled, it is not possible to use global variables to retrieve return values in a subjob.

  • The Action on table field is not available with the parallelization function. Therefore, you must use a tCreateTable component if you want to create a table.
  • When parallel execution is enabled, it is not possible to use global variables to retrieve return values in a subjob.

Usage

Usage rule

This component is mainly used when no particular tranformation is required on the data to be loaded onto the database.

Limitation The database server must be installed on the same machine where the Studio is installed or where the Job using tPostgresqlOutputBulkExec is deployed, so that the component functions properly.