Lowest-Level Entry

Procedure

The generated function data processing modules are available for this entry level.

Call the function module VIEW_MAINTENANCE_LOW_LEVEL. You do not need to know the view and table-specific function module names for the data processing, the system constructs and calls them.

Pass the name of the table or view and the function, in the call. You must interpret the returned user commands.

You must also perform all activities that the maintenance dialog usually performs, yourself:

Authorization check
Locks
Get and format Dictionary data
Select, process and save data
Restrict data selection in the subset fields dialog
Dynamically adapt the user interface (menus and functions)

Interface Description

Import Parameters
`FCODE`	`READ` Read data from DB `EDIT` Process data `RDED` Read and edit `SAVE` Write data to DB `ORGL` Reset all selected entries `ORGD` Reset an entry
`VIEW_ACTION`	Action (Display, Maintain or Transport) see documentation of function module `VIEW_MAINTENANCE_CALL`.
`VIEW_NAME`	Name of the table or view.
`CORR_NUMBER`	The documentation of function module `VIEW_MAINTENANCE_CALL` contains the number of the change task for changes made

Export Parameter
`LAST_ACT_ENTRY`	Index of the entry in table `EXTRACT` on which the cursor is.
`UCOMM`	Last user command in the maintenance dialog. You must handle the following commands yourself at this entry level: `SAVE` Save data in DB `ORGL` Reset all selected entries in display table (`EXTRACT`). If this command is returned, you must call the function module of the lowest entry level, again, with this command, and then again, with the previous command. You do not need to write your own reset program. Example The lower entry level was called with the module `VIEW_MAINTENANCE_LOW_LEVEL` and the function `EDIT`. The user has called the function`ORGL`. The module `VIEW_MAINTENANCE_LOW_LEVEL` is called first with the function `ORGL`. The module runs in the background. Then the module `VIEW_MAINTENANCE_LOW_LEVEL` is called again with the function `EDIT`. `ORGD` Reset the entry in the display table `EXTRACT` header, process command, see command `ORGL`. `ANZG` Change action: Change Display `AEND` Change action: Display Change `END` End processing `BACK` Go back to call `ATAB` Fetch a different table or view. This field also contains commands which were realized in user modules in the maintenance screens.
`UPDATE_REQUIRED`	Flag: Entries changed, save required. The user has made a change, you must save the data before leaving the maintenance dialog.

Tables
`CORR_KEYTAB`	Table with the keys of the entries to be transported. Table is only used in transport mode. Structure: `INCLUDE STRUCTURE E071K`
`DBA_SELLIST`	Database access selection conditions Structure: `INCLUDE STRUCTURE VIMSELLIST`, see documentation of function module `VIEW_MAINTENANCE_CALL`. All data which was read in in table processing, or created in maintenance, is saved in the internal table `TOTAL`, at runtime. The table `TOTAL` has the structure: `INCLUDE STRUCTURE <view name>` or `>` `INCLUDE STRUCTURE VIMFLAGTAB` See also the documentation of function module `VIEW_MAINTENANCE_CALL.`
`DPL_SELLIST`	Selection conditions to display part of a work area in the maintenance screens. Structure and documentation as `DBA_SELLIST` The data is saved in the internal table `EXTRACT`, at runtime. The table `EXTRACT` always contains only the table rows which were filtered out from the table `TOTAL` by a user action. The table `EXTRACT` has the same structure as the table `TOTAL`, see the documentation of function module `VIEW_MAINTENANCE_CALL`.
`EXCL_CUA_FUNCT`	Dynamically deactivated interface functions. Structure: `INCLUDE STRUCTUREVIMEXCLFUN`, see documentation of function module `VIEW_MAINTENANCE_CALL`.
`TOTAL`	Data table, contains all data read in or changed, deleted or added in processing. Structure: `INCLUDE STRUCTURE <view name>` or `<table name>` `INCLUDE STRUCTURE VIMFLAGTAB` All data which was read in in table processing, or created in maintenance, is saved in the internal table `TOTAL`, at runtime. When the function has been performed, the table contains processing flags for each record processed.
`EXTRACT`	Work table for data display. Structure as table `TOTAL`. The data is saved in the internal table `EXTRACT`, at runtime. The table `EXTRACT` always contains only the table rows which were filtered out from the table `TOTAL` by a user action. When the function has been performed, the table contains all data from the last display selection.
`X_HEADER`	Control block table for the table or view. Structure: `INCLUDE STRUCTURE VIMDESC` The table contains the header information from the dictionary for the table or view, such as subset, selection conditions, maintenance status, and delivery class. The table still contains the generation information and time point information of the table or view. You can fill this table with function module `VIEW_GET_DDIC_INFO`.
`X_NAMTAB`	Control block table for the table or view fields. Structure: `INCLUDE STRUCTURE VIMDESC`. The table contains the field information from the dictionary for the table or view, such as position of the field in the structure, key information and field maintenance attributes. You can fill this table with the function module `VIEW_GET_DDIC_INFO`.

Exceptions
`MISSING_CORR_NUMBER`	No correction number
`SAVING_CORRECTION_FAILED`	Error saving entries in a change task.