Data-Integration-Developer Exam Dumps - Talend Data Integration Questions and Answers

The methods that you can use to specify the schema in a tFileInputDelimited component are:

• Add the component then drag and drop a generic schema metadata item onto the component. This method allows you to reuse an existing schema that is stored in the Metadata section of the Repository. A generic schema is a schema that is not associated with any specific file format or connection type. You can create a generic schema by right-clicking on Generic Schema in the Repository and selecting Create Generic Schema.
• Drag a File delimited metadata item from the Repository onto the design workspace. This method allows you to create a new tFileInputDelimited component with a predefined schema that is based on a specific delimited file. A File delimited metadata item is a metadata item that contains information about a delimited file, such as its path, format, encoding, field separator, etc. You can create a File delimited metadata item by right-clicking on File delimited in the Repository and selecting Create File delimited.
• Add the component, open the Component view, select the Built-in schema type, then click the Edit schema button. This method allows you to create a custom schema for the tFileInputDelimited component within the Component view. A built-in schema is a schema that is defined locally for a specific component and cannot be reused by other components. You can edit a built-in schema by clicking on the Edit schema button in the Basic settings tab of the Component view.

You need to use the following code in a tJava component to write a nb_line variable:

int nb_line = (Integer)globalMap.get(“tFileInputDelimited_1_NB_LINE”);

This code retrieves the value of the global variable tFileInputDelimited_1_NB_LINE, which stores the number of rows processed by the tFileInputDelimited component, and assigns it to an integer variable named nb_line. You can then use this variable to print or manipulate the number of rows in your Job. Note that you need to use globalMap.get, not globalMap.put, to access the value of a global variable.

Talend Studio provides two types of SQL templates: system SQL templates and user-defined SQL templates. SQL templates are predefined SQL queries that can be used in various components that execute SQL statements, such as tDBInput, tDBRow, tDBOutput, etc. System SQL templates are provided by Talend Studio and cover common SQL operations, such as creating, dropping, or altering tables, inserting, updating, or deleting data, etc. User-defined SQL templates are created by the user and can be customized according to specific needs. User-defined SQL templates can be created by using the SQL Templates view in Talend Studio and can be organized into categories and subcategories. There are no custom SQL templates orsystem-defined SQL templates in Talend Studio. References: Talend Open Studio: Open-source ETL and Free Data Integration | Talend, [SQL Templates - 7.3]

A row is an element that carries data between two components in a Job. A row is also called a link or a connector. A row can be of different types, such as Main, Lookup, Reject, Iterate, etc. A subjob is a group of components that are connected together and executed as a single unit. A trigger is an element that controls the execution flow of a Job or a subjob. A trigger can be of different types, such as OnSubjobOk, OnComponentOk, RunIf, etc.