tSAPBWInput - 6.1

Talend Components Reference Guide

EnrichVersion
6.1
EnrichProdName
Talend Big Data
Talend Big Data Platform
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Open Studio for Big Data
Talend Open Studio for Data Integration
Talend Open Studio for Data Quality
Talend Open Studio for ESB
Talend Open Studio for MDM
Talend Real-Time Big Data Platform
task
Data Governance
Data Quality and Preparation
Design and Development
EnrichPlatform
Talend Studio

tSAPBWInput Properties

Component family

Business

 

Function

tSAPBWInput reads data from an SAP BW database using a JDBC API connection and extracts fields based on an SQL query.

Purpose

This component executes an SQL query with a strictly defined order which must correspond to your schema definition. Then it passes on the field list to the next component via a Row > Main connection.

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 where Properties are stored. The fields that come after are pre-filled in using the fetched data.

 

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. 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.

 

JDBC URL

Enter the JDBC URL of the database you want to connect to. For example, enter: jdbc:jdbc4olap://server_address/database_name to connect to an SAP BW database.

 

Username

Enter the username for DB access authentication.

 

Password

Enter the password for DB access authentication.

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

Type in the name of the DB table.

 

Query 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 where Properties are stored. The fields that come after are pre-filled in using the fetched data.

 

Guess Query

Enter your DB query paying particularly attention to properly sequence the fields in order to match the schema definition.

Advanced settings

Trim all the String/Char columns

Select this check box to remove leading and trailing whitespace from all the String/Char columns.

 

Trim column

Remove leading and trailing whitespace from defined columns.

Note

Clear Trim all the String/Char columns to enable Trim columns in this field.

 

tStatCatcher Statistics

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

Global Variables

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 supports SQL queries for SAP BW database using a JDBC connection.

Limitation

Due to license incompatibility, one or more JARs required to use this component are not provided. You can install the missing JARs for this particular component by clicking the Install button on the Component tab view. You can also find out and add all missing JARs easily on the Modules tab in the Integration perspective of your studio. For details, see https://help.talend.com/display/KB/How+to+install+external+modules+in+the+Talend+products or the section describing how to configure the Studio in the Talend Installation Guide.

Scenario: Reading data from SAP BW database

This scenario describes a two-component Job that reads data from an SAP BW database. The data is fetched and displayed on the console.

Prior to setting up the Job, make sure the following prerequisites are met:

  1. Copy the following .jar files which compose the jdbc4olap driver to your class path:

    -activation.jar

    -commons-codec.jar

    -jdbc4olap.jar

    -saaj-api.jar

    -saaj-impl.jar

  2. Make sure that you have the latest version of jdbc4olap driver. You can download the latest version of jdbc4olap driver from jdbc4olap download section. For further information about the usage of jdbc4olap driver, see jdbc4olap User Guide.

The procedure of this scenario requires 4 main steps detailed hereafter:

  1. Set up the Job.

  2. Set up the jdbc connection to the SAP BW server.

  3. Set up a query.

  4. Display the fetched data on the console.

Set up the Job

  1. Drop a tSAPBWInput component and a tLogRow component from the Palette onto the workspace.

  2. Connect the tSAPBWInput component and the tLogRow component using a Row > Main connection.

Set up the jdbc connection to the SAP BW server

  1. Double-click the tSAPBWInput component to open its Basic settings view and define the component properties.

  2. Fill the JDBC URL field with the URL of your jdbc4olap server.

    Note that the URL displayed above is for demonstration only.

  3. Fill the Username and Password fields with your username and password for the DB access authentication.

  4. Click the three-dot button next to Edit schema to define the schema to be used.

  5. Click the plus button to add new columns to the schema and set the data type for each column and click OK to save the schema settings.

Set up a query

  1. From the Basic settings view of tSAPBWInput, fill the Table Name field with the table name. In this scenario, table name "Measures" is for demonstration only.

  2. Fill the Query area with the query script. In this example, we use:

    "SELECT 
    T1.\"[0D_CO_CODE].[LEVEL01]\" AS company, 
    T0.\"[Measures].[D68EEPGGHUMSZ92PIJARDZ0KA]\" AS amount 
    FROM 
    \"0D_DECU\".\"0D_DECU/PRE_QRY4\".\"[Measures]\" T0, 
    \"0D_DECU\".\"0D_DECU/PRE_QRY4\".\"[0D_CO_CODE]\" T1 "

    Note

    Due to the limitations of the supported SQL queries, the query scripts you use must be based on the grammar defined in the jdbc4olap driver. For further information about this grammar, see jdbc4olap User Guide.

Display the fetched data on the console

  1. Double-click the tLogRow component to open its Basic settings view and define the component properties.

  2. Click Sync columns to retrieve the schema defined in the preceding component.

  3. Select Table in the Mode area.

  4. Press Ctrl+S to save your Job and press F6 to execute it.

    The data in the table "Measure" is fetched and displayed on the console.