Middle Level Entry

Procedure

At this entry level, you call function modules to control table maintenance.

Call the function module VIEW_MAINTENANCE_.

It only needs to know the table or view name. The name of the control function module for the maintenance dialog is put together and called.

The function module selects, processes and saves the data, and creates the interface. You must have performed the following activities before you call VIEW_MAINTENANCE:

Table/view authorization check

The function module VIEW_AUTHORITY_CHECK does this.
Lock table/view

The function module VIEW_ENQUEUE does this.
Get and format Dictionary data

The function module VIEW_GET_DDIC_INFO does this.
Restrict data range in dialog

The function module TABLE_RANGE_INPUT does this.
Note

At runtime, you can influence the maintenance dialog as follows:
- Selection conditions
  
  Put the database data selection conditions in an internal table.
- User Interface
  
  Deactivate central standard interface SAPLSVIM functions, dynamically, in an internal table.
The function module documentation in the system describes the interface.

Interface Description

Import Parameters
`CORR_NUMBER`	The documentation of function module `VIEW_MAINTENANCE_CALL` contains the number of the change task for changes made
`VIEW_ACTION`	Action (display, maintain, or transport), see documentation of function module `VIEW_MAINTENANCE_CALL`
`VIEW_NAME`	Name of the table/view to be processed

Export Parameters
None

Tables
`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 `<table name>` `INCLUDE STRUCTURE VIMFLAGTAB`
`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`.
`EXCL_CUA_FUNCT`	Dynamically deactivated interface functions. Structure: `INCLUDE STRUCTURE VIMEXCLFUN`, see documentation of function module `VIEW_MAINTENANCE_CALL`.
`X_HEADER`	Control block table for the view/table. 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 information about the generation time and time points for your own form routines of the table or view. You can fill this table with function module `VIEW_GET_DDIC_INFO`.
`X_NAMTAB`	Control block table for the tables/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 fields 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
`NO_DATABASE_FUNCTION`	No data processing module
`NO_EDITOR_FUNCTION`	No control module
`NO_VALUE_FOR_SUBSET_IDENT`	No subset field value