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Changing DDIC References for a ColumnLocate this document in the navigation structure

Use

You are able to define columns as internal data tables yourself or you can use individual fields or whole tables from the database. In the latter case, all information that is available for this element in the Data Dictionary (DDIC) is transferred to the new column objects. In the former case, only those are transferred that you provide with the definition.

For columns with DDIC reference, you are able to retrieve a variety of information on the properties of the DDIC element.

You are also able to change description of column objects by creating or changing a DDIC reference. Here you have the following options:

  • You change the description of an individual column

  • You change the description of multiple columns simultaneously.

No matter whether the type of your column agrees with that of the referenced DDIC field, the following properties are always transferred to your column.

  • Short, medium-length, and long text of your column title

  • F1 help text

If the typing also matches (internal type and internal length), the remaining properties are also transferred, such as

  • F4 help and search help

  • Data element and domain

  • Columns for quantity, currency, decimal places, and rounding

Features

You are able to make the following settings for DDIC references:

The following is valid for all of these functions:

ALV Tool

Display Type

Function Available

Simple, two-dimensional table

Classic ABAP List

Yes

Fullscreen

Yes

In the Container

Yes

Hierarchical-sequential list

Classic ABAP List

Yes

Tree structure

Fullscreen

Yes

In the Container

Yes

Get information on the DDIC element

You are able to get all sorts of information that results from the DDIC reference of a column:

Function

Class

Method

Get name of the DDIC data element

CL_SALV_COLUMN

GET_DDIC_ROLLNAME

Get DDIC data type

GET_DDIC_DATATYPE

Get DDIC decimal places

GET_DDIC_DECIMALS

Get DDIC domains

GET_DDIC_DOMAIN

Get output length according to DDIC (CHAR)

GET_DDIC_OUTPUTLEN
Note

If a column does not have a DDIC reference, you are able to retrieve the following properties:

  • Internal Length

    To do this, use method GET_DDIC_INTLEN

  • Internal Type

    To do this, use method GET_DDIC_INTTYPE

Change DDIC Reference of an Individual Column or of Multiple Columns

You are able to create or change the DDIC reference for one or more columns. If multiple columns of your ALV output have the same name as the fields in a DDIC structure that already exists, you assign the entire DDIC structure to your ALV output. Like-named columns receive the properties of the corresponding fields in the DDIC structure.

Function

Class

Method

Change DDIC reference for an individual column

CL_SALV_COLUMN

SET_DDIC_REFERENCE

Get DDIC reference for the column

GET_DDIC_REFERENCE

Change DDIC reference for several columns

CL_SALV_COLUMNS

APPLY_DDIC_STRUCTURE