# tAS400Output

Writes, updates, makes changes or suppresses entries in a database.

tAS400Output executes the action defined on the table and/or on the data contained in the table, based on the flow incoming from the preceding component in the Job.

## tAS400Output Standard properties

These properties are used to configure tAS400Output running in the Standard Job framework.

The Standard tAS400Output component belongs to the Databases family.

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 [DB Generic components](https://help.qlik.com/talend/r/en-US/8.0/components/db-generic/db-generic-component).

## Basic settings

| Properties | Description |
| --- | --- |
| Database | Select the desired database type from the list and click<br>Apply. |
| Property<br>type | Either Built-in or Repository.<br><br><ul> <li> <span>Built-in</span>: No property data stored centrally.</li> <li> <span>Repository</span>: Select the repository file in which the                                properties are stored. The fields that follow are completed                                automatically using the data retrieved.</li> </ul> |
| ![](https://help.qlik.com/talend/en-US/components/8.0/Resources/images/Save_Icon.png) | Click this icon to<br>open a database connection wizard and store the database connection<br>parameters you set in the component Basic settings view.<br><br>For more information about setting up<br>and storing database connection parameters, see [Centralizing database metadata](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/centralizing-database-metadata). |
| DB Version | Select the AS/400<br>version in use |
| Use an existing<br>connection | Select this check box and in the Component<br>List drop-down list, select the desired connection component to<br>reuse the connection details you already defined.<br><br>Information noteNote: When a Job contains the parent Job and the child Job, do the following if you<br>want to share an existing connection between the parent Job and the child Job (for example,<br>to share the connection created by the parent Job with the child Job).<br><br><ol> <li>In the parent level, register the database connection to be shared               in the <span>Basic settings</span> view of the               connection component which creates that very database connection. </li> <li>In the child level, use a dedicated connection component to read               that registered database connection. </li> </ol><br><br>For an example about how to share a database connection across Job levels,<br>see [Sharing a database connection](https://help.qlik.com/talend/r/en-US/7.3/studio-user-guide/sharing-database-connection). |
| Host | Database server IP<br>address |
| Port | Listening port<br>number of DB server. |
| Database | Name of the<br>database |
| Username and Password | DB user<br>authentication data.<br><br>To enter the password, click the [...] button<br>next to the password field, enter the password in double quotes in the pop-up dialog box,<br>and click OK to save the settings. |
| Table | Name of the table to<br>be written. Note that only one table can be written at a<br>time |
| Action on<br>table | On the table<br>defined, you can perform one of the following operations:<br><br><br>None: No operation is carried out.<br><br><br>Drop and create a table: The table is<br>removed and created again.<br><br><br>Create a<br>table: The table does not exist and gets created.<br><br><br>Create a table if not exists: The table<br>is created if it does not exist.<br><br><br>Drop a table if exists<br>and create: The table is removed if it already exists<br>and created again.<br><br><br>Clear a table: The table<br>content is deleted. |
| Action on<br>data | On the data of the table defined, you can<br>perform:<br><br><br>Insert: Add new entries to the table.<br>If duplicates are found, Job stops.<br><br>Update: Make<br>changes to existing<br>entries.<br><br>Information noteNote: In cases where all the schema<br>columns are set as keys, this action yields an error and the Job fails.<br><br>Insert or<br>update: Insert a new record. If the record with the given reference<br>already exists, an update would be<br>made.<br><br>Information noteNote: In cases where all the schema<br>columns are set as keys, this action yields a warning message and the Job<br>continues.<br><br>Update or<br>insert: Update the record with the given reference. If the record does<br>not exist, a new record would be<br>inserted.<br><br>Information noteNote: In cases where all the schema<br>columns are set as keys, this action yields a warning message and the Job<br>continues.<br><br><br>Delete: Remove entries corresponding to<br>the input flow.<br><br>Information noteWarning: It is necessary to specify at least one column as a primary key<br>on which the Update and Delete operations are based.<br>You can do that by clicking Edit Schema and selecting the<br>check box(es) next to the column(s) you want to set as primary<br>key(s). For an advanced use, click the Advanced<br>settings view where you can simultaneously<br>define primary keys for the Update and Delete<br>operations. To do that: Select the Use field options check box and<br>then in the Key in<br>update column, select the check boxes next to<br>the column names you want to use as a base for the Update<br>operation. Do the same in the Key in delete column for the<br>Delete operation.<br><br>Information noteNote: The dynamic schema feature can be<br>used in the following modes: Insert; Update; Insert or update; Update or insert;<br>Delete. |
| Schema and Edit<br>schema | A schema is a row description. It defines the number of fields<br>(columns) to be processed and passed on to the next component. When you create a Spark<br>Job, avoid the reserved word line when naming the<br>fields.<br><br>This component offers the advantage of the<br>dynamic schema feature. This allows you to retrieve unknown columns from source<br>files or to copy batches of columns from a source without mapping each column<br>individually. For further information about dynamic schemas, see [Dynamic schema](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/dynamic-schema).<br><br>This<br>dynamic schema feature is designed for the purpose of retrieving unknown columns of a<br>table and is recommended to be used for this purpose only; it is not recommended for the<br>use of creating tables.<br><br><br>Built-In: You create and store the schema locally for this component<br>only.<br><br><br>Repository: You have already created the schema and stored it in the<br>Repository. You can reuse it in various projects and Job designs.<br><br>When the schema to be reused has default values that are<br>integers or functions, ensure that these default values are not enclosed within<br>quotation marks. If they are, you must remove the quotation marks manually.<br><br>For more information, see [Retrieving table schemas](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/retrieving-table-schemas?tocId=_C1~eFOlN~GM_JR2qkBYZg).<br><br>Click Edit<br>schema to make changes to the schema. If the current schema is of the Repository type, three options are available:<br><br><ul> <li> <p> <span>View schema</span>: choose this                option to view the schema only.</p> </li> <li> <p> <span>Change to built-in property</span>:                choose this option to change the schema to <span>Built-in</span> for local changes.</p> </li> <li> <p> <span>Update repository connection</span>:                choose this option to change the schema stored in the repository and decide whether                to propagate the changes to all the Jobs upon completion.</p> <p>If you just want to                propagate the changes to the current Job, you can select <span>No</span> upon completion and choose this schema metadata                again in the <span>Repository Content</span>                window.</p> </li> </ul> |
| Die on<br>error | This check box is<br>selected by default. Clear the check box to skip the row on error and<br>complete the process for error-free rows. If needed, you can retrieve<br>the rows on error via a Row&gt;Rejects link. |

## Advanced settings

| Properties | Description |
| --- | --- |
| Use commit<br>control | Select this check<br>box to have access to the Commit every field where you can define the commit<br>operation.<br><br><br>Commit<br>every: Enter the number of rows to be completed before<br>committing batches of rows together into the DB. This option ensures<br>transaction quality (but not rollback) and, above all, better<br>performance at execution. |
| Additional JDBC<br>parameters | Specify additional<br>connection properties for the DB connection you are creating. This<br>option is not available if you have selected the Use an existing connection<br>check box in the Basic settings.<br><br>Information noteNote: You can press<br>Ctrl+Space to access a list of predefined global<br>variables. |
| Additional<br>Columns | This option is not<br>offered if you create (with or without drop) the DB table. This option<br>allows you to call SQL functions to perform actions on columns, which<br>are not insert, nor update or delete actions, or action that require<br>particular preprocessing.<br><br><ul> <li> <span>Name:</span> Type in the name of the schema column to be                                altered or inserted as new column.</li> <li> <span>SQL                                    expression:</span> Type in the SQL statement to be executed                                in order to alter or insert the relevant column data.</li> <li> <span>Position:</span> Select <span>Before</span>, <span>Replace</span> or <span>After</span> following the                                action to be performed on the reference column.</li> <li> <span>Reference column:</span> Type in a column of reference                                that the <span>tDBOutput</span> can use to place or replace the new or                                altered column.</li> </ul> |
| Use field<br>options | Select this check<br>box to customize a request, especially when there is double action on<br>data. |
| Debug query mode | Select this check box to display each step during processing entries<br>in a database. |
| Use Batch | Select this check box to activate the batch mode for data processing.<br><br>Information noteNote: This check box is available only when you have<br>selected the Insert, Update or Delete option in the Action on data<br>field. |
| Batch<br>Size | Specify the number of records to be processed in each batch.<br><br>This field is available only when the Use batch mode<br>check box is selected. |
| Support null in "SQL WHERE" statement | Select this check box to validate<br>null in "SQL WHERE" statement. |
| Return generated keys | Select this option to return the key of a record when the record is<br>inserted.<br><br>Selecting this option decreases the performance because the component<br>will send records to the database row by row regardless of the batch settings.<br><br>Note that this option is not selected by default, meaning that the<br>component does not return record keys by default, which is different from the<br>way in which the component works when the 8.0.1-R2023-03 Talend Studio Monthly update (or a later one) is not installed. With the 8.0.1-R2023-03<br>Talend Studio Monthly update (or a later one) installed, a migration task will be carried<br>out for the Jobs that contain the tAS400Output component. The migration task<br>improves the performance of such kind of Jobs by preventing the tAS400Output<br>components from returning record keys. The migration task also has this option<br>selected in Jobs that contains the tAS400LastInsertId components, so that the<br>tAS400LastInsertId components can work properly. See [tAS400LastInsertId](https://help.qlik.com/talend/en-US/components/8.0/as400/tas400lastinsertid) for related information.<br><br>However,<br>this option may cause issues in Jobs that retrieve record keys through custom<br>code. For such Jobs, you need to select this option manually.<br><br>This<br>option is available when Insert is selected from the<br>Action on data in the Basic<br>settings view.<br><br>Information noteNote: This option is available only when you<br>have installed the 8.0.1-R2023-03 Talend Studio Monthly update or a later one delivered by Talend. For more information, check with your administrator. |
| Set Query Timeout | Select this option to set a timeout period for the query or the batch query. The Job will be<br>terminated if the query or the batch query is timed out. You can set the<br>timeout period (in seconds) in the Timeout field.<br><br>Information noteNote:<br><br><ul> <li>It varies with the driver implementations whether this option applies to an                           individual SQL statement or a set of SQL statements (that is, a batch                           query). Refer to your driver vendor documentation for details.</li> <li>This option is available only when you have installed the R2021-12                              <span>Talend Studio</span> Monthly update or a later one delivered by <span>Talend</span>. For more information, check with your administrator.</li> </ul> |
| tStat<br>Catcher<br>Statistics | Select this check<br>box to collect log data at the component level. |
| Enable parallel<br>execution | Select this check box to perform high-speed data processing, by treating<br>multiple data flows simultaneously. Note that this feature depends on the database or<br>the application ability to handle multiple inserts in parallel as well as the number of<br>CPU affected. In the Number of parallel executions<br>field, either:<br><br><ul> <li>Enter the number of parallel executions desired.</li> <li>Press <span>Ctrl+Space</span> and select               the appropriate context variable from the list. For further information about context               variables, see <a href="https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/contexts-and-variables" target="_blank">Using contexts and variables</a>. </li> </ul><br><br>Note that when parallel execution is enabled, it is not possible to use global<br>variables to retrieve return values in a subJob.<br><br><ul><li>						            The <span>Action on							table</span> field is not available with the							parallelization function. Therefore, you must use a <span>tCreateTable</span> component if you							want to create a table. 					          </li><li>						            When parallel execution is enabled, it is not							possible to use global variables to retrieve return values in a							subJob.					          </li> </ul> |

## Usage

| Usage guidance | Description |
| --- | --- |
| **Usage<br>rule** | This component<br>offers the flexibility benefit of the DB query and covers all of the SQL<br>queries possible.<br><br>This<br>component must be used as an output component. It allows you to carry<br>out actions on a table or on the data of a table in a AS/400 database.<br>It also allows you to create a reject flow using a Row &gt; Rejects link<br>to filter data in error. For an example of tMysqlOutput in use, see [Retrieving data in error with a Reject link](https://help.qlik.com/talend/en-US/components/8.0/mysql/tmysqloutput-tmap-tfileoutputdelimited-tfileinputdelimited-retrieving-data-in-error-with-reject-link-standard-component-this). |
| Dynamic<br>settings | Click the [+] button to add a row in the table<br>and fill the Code field with a context<br>variable to choose your database connection dynamically from multiple<br>connections planned in your Job. This feature is useful when you need to<br>access database tables having the same data structure but in different<br>databases, especially when you are working in an environment where you<br>cannot change your Job settings, for example, when your Job has to be<br>deployed and executed independent of Talend Studio.<br><br>The Dynamic settings table is<br>available only when the Use an existing<br>connection check box is selected in the Basic settings view. Once a dynamic parameter is<br>defined, the Component List box in the<br>Basic settings view becomes unusable.<br><br>For examples on using dynamic parameters, see [Reading data from databases through<br>context-based dynamic connections](https://help.qlik.com/talend/r/en-US/8.0/components/defining-context-groups/reading-data-from-databases-through-context-based-dynamic-connections) and [Reading data from different MySQL databases<br>using dynamically loaded connection parameters](https://help.qlik.com/talend/r/en-US/8.0/components/context/reading-data-from-different-mysql-databases-using-dynamically-loaded-connection-parameters). For more information on<br>Dynamic settings and context variables, see<br>[Dynamic schema](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/dynamic-schema) and [Creating a context group and define context<br>variables in it](https://help.qlik.com/talend/r/en-US/8.0/studio-user-guide/creating-context-group-and-define-context-variables-in-it). |

**Related concepts**

* [Handling data with AS/400](https://help.qlik.com/talend/en-US/components/8.0/as400/tas400input-tas400output-tfixedflowinput-tlogrow-handling-data-with-as-400-standard-component-this)