Altova MapForce 2024 Professional Edition

After you add a database component to the mapping area, you can configure various database settings in the Component Settings dialog box (screenshot below). You can open the Component Settings dialog box in one of the following ways:

 

Double-click the component title bar.

Right-click the component and click Properties.

Select the component in the mapping. Then click the Component menu and select Properties from the context menu.

mf_db_component_settings

The available settings are listed below.

 

Database

This group displays database connection information. Click Change to select a different database or to redefine the database objects in the existing database component. Connections to tables with the same names will be retained. You can also change the tables in the component, by right clicking a database component and selecting Add/Remove/Edit Database Objects.

 

 

Login settings

The login settings are used for all code generation targets and the built-in execution engine.

 

 

JDBC-specific settings

The JDBC-specific settings are relevant when the mapping contains a JDBC connection and is executed by generated Java code or by MapForce Server.

 

Note:ADO, ADO.NET, and ODBC connections are converted to JDBC (and the JDBC settings below apply) when the mapping is run on a Linux or macOS machine. For details, see Database Mappings in Various Execution Environments.

 

 

ADO/OLEDB-specific settings

The ADO/OLEDB-specific settings are relevant when the mapping contains an ADO connection and is executed by the generated C# code, C++ code, or by MapForce Server running on Windows. For details, see Database Mappings in Various Execution Environments. The Data Source and Catalog settings are not used by the built-in execution engine.

 

 

Generation settings

Generation settings apply to all code generation targets as well as the built-in execution engine. The Strip schema names from table names option allows you to strip database schema names from the generated code and retain only the table names. Note that this option works only for SQL SELECT statements generated by MapForce. User-defined SQL statements will not be modified.

 

The Generation settings option is supported for backward compatibility and should be avoided. To make database object names relative to the default schema, use the approach described in Use Object Names Relative to Default Schema.

 

Timeout for statement execution

When a database is used as a target component, execution timeouts can occur due to server availability, traffic, long-running triggers, and other factors.

 

 

Note:Timeout for statement execution is not applicable to SQLite databases.

 

Database transaction handling

During the execution of a mapping that has a database component, there may be various database-related errors (e.g., duplicate index keys, NULL values inserted into non-NULL columns, etc.). To be able to roll back your database data in case of an error, you need to enable database transaction handling. You can enable transaction rollback at database-component level (current setting), at table-action level, and at stored-procedure level. For more information about some of the possible transaction-handling scenarios, see Transaction Rollback: Scenarios.

 

Some mappings may contain multiple database components that may have the same or different database connections. The outcome of such mappings in case of a database-related error depends on the execution engine:

 

If the mapping is run with MapForce, only one target component can be executed when the mapping runs. This is the component where the btn_component_preview_pressed button is enabled. If a database error occurs in that component, and if the Use transactions check box is enabled, all the changes done by the component will be rolled back.

If the mapping is run with MapForce Server or a MapForce-generated program, all the target components are executed, sequentially. In this case, when a database error occurs, the rollback will take place for the database component where the error occurred. The mapping will stop or continue executing the next target component depending on the value you selected from the When an error occurs drop-down list (see below).

 

 

Traces

When a mapping writes data to a database, you can enable database tracing and error logging. Tracing is useful if you want to track all the changes made to the database during the execution of the mapping. The changes made to the database are logged in a trace report. If there are errors during the execution, these errors will also be logged. Tracing is compatible only with the Built-In transformation language.

 

You can enable tracing at different levels:

 

Database-component level: Tracing at this level could be useful for mappings that have multiple target database components, and you need to enable tracing only for some of them. Enabling tracing at database-component level automatically enables it for all tables and stored procedures in that component. To be able to be traced, the relevant tables and stored procedures must be connected to source nodes.

Table or stored-procedure level: You can decide whether to enable tracing for a specific table or stored procedure. At table level, tracing includes events related to table actions (e.g., Insert All). In the case of stored procedures, events related to the stored procedure call are traced.

Database-field level: By default, all fields are traced, but you can exclude certain fields from the trace report or choose to include certain fields only in case of an error.

 

Importantly, the three levels above are hierarchical. This means that in order to set tracing at a lower level, you must enable tracing at parent level first. For example, if you need to set tracing at table level, you must first enable tracing at database-component level. The same principle applies when you narrow down the tracing level. For example, if you limit tracing only to errors at database-component level, it is not possible to use full tracing at table and stored-procedure level.

 

MapForce allows you to set the following tracing options:

 

 

Save all file paths relative to MFD file

When this option is enabled, MapForce saves the file paths displayed in the Component Settings dialog box relative to the location of the MapForce design file (.mfd). Use relative paths if you intend to run the mapping with MapForce Server on a different operating system. See also Relative and Absolute Paths.

 

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