tOracleOutputBulk - 6.1

Talend Components Reference Guide

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6.1
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Talend Studio

tOracleOutputBulk properties

The tOracleOutputBulk and tOracleBulkExec components are used together in a two step process. In the first step, an output file is generated. In the second step, this file is used in the INSERT operation used to feed a database. These two steps are fused together in the tOracleOutputBulkExec component, detailed in a separate section. The advantage of using two separate steps is that the data can be transformed before it is loaded in the database.

Component family

Databases/Oracle

 

Function

Writes a file with columns based on the defined delimiter and the Oracle standards

Purpose

Prepares the file to be used as parameter in the INSERT query to feed the Oracle database.

Basic settings

Property type

Either Built-in or Repository.

Since version 5.6, both the Built-In mode and the Repository mode are available in any of the Talend solutions.

 

 

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.

 

File Name

Name of the file to be generated.

Warning

This file is generated on the local machine or a shared folder on the LAN.

 

Append

Select this check box to add the new rows at the end of the file

 

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.

Since version 5.6, both the Built-In mode and the Repository mode are available in any of the Talend solutions.

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 https://help.talend.com/display/KB/Verifying+default+values+in+a+retrieved+schema.

Advanced settings

Advanced separator (for number)

Select this check box to change data separators for numbers:

Thousands separator: define separators you want to use for thousands.

Decimal separator: define separators you want to use for decimals.

 

Field separator

Character, string or regular expression to separate fields.

 

Row separator

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

 

Encoding

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

 

Bulk file parameters

Set the parameters Buffer Size and StringBuilder Size for a performance gain according to the memory size.

 

tStatCatcher Statistics

Select this check box to gather the job processing metadata at a job level as well as at each component level.

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 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

This component is to be used along with tOracleBulkExec component. Used together they offer gains in performance while feeding a Oracle database.

Log4j

If you are using a subscription-based version of the Studio, the activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.