ABAP Select data from SAP table ESH_S_MU_RMAP_CONTROL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESH_S_MU_RMAP_CONTROL table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to ESH_S_MU_RMAP_CONTROL. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the ESH_S_MU_RMAP_CONTROL table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_ESH_S_MU_RMAP_CONTROL TYPE STANDARD TABLE OF ESH_S_MU_RMAP_CONTROL,
      WA_ESH_S_MU_RMAP_CONTROL TYPE ESH_S_MU_RMAP_CONTROL,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <ESH_S_MU_RMAP_CONTROL> TYPE ESH_S_MU_RMAP_CONTROL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_S_MU_RMAP_CONTROL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_S_MU_RMAP_CONTROL
  INTO TABLE IT_ESH_S_MU_RMAP_CONTROL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_S_MU_RMAP_CONTROL
*  INTO TABLE @DATA(IT_ESH_S_MU_RMAP_CONTROL2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_ESH_S_MU_RMAP_CONTROL INDEX 1 INTO DATA(WA_ESH_S_MU_RMAP_CONTROL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_S_MU_RMAP_CONTROL ASSIGNING <ESH_S_MU_RMAP_CONTROL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_S_MU_RMAP_CONTROL>-SEL_STEP = 1.
<ESH_S_MU_RMAP_CONTROL>-PREV_STEP = 1.
<ESH_S_MU_RMAP_CONTROL>-TEMPL_PROP_VISIBLE = 1.
<ESH_S_MU_RMAP_CONTROL>-DP_VISIBLE = 1.
<ESH_S_MU_RMAP_CONTROL>-NODES_VISIBLE = 1.

ENDLOOP.

LOOP AT IT_ESH_S_MU_RMAP_CONTROL INTO WA_ESH_S_MU_RMAP_CONTROL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_S_MU_RMAP_CONTROL-STRUC_VISIBLE, sy-vline,
  WA_ESH_S_MU_RMAP_CONTROL-ANALYTICS_VISIBLE, sy-vline,
  WA_ESH_S_MU_RMAP_CONTROL-SETTINGS_VISIBLE, sy-vline,
  WA_ESH_S_MU_RMAP_CONTROL-SEARCH_VISIBLE, sy-vline,
  WA_ESH_S_MU_RMAP_CONTROL-TBO_VISIBLE, sy-vline,
  WA_ESH_S_MU_RMAP_CONTROL-PREV_ENABLED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_S_MU_RMAP_CONTROL you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_ESH_S_MU_RMAP_CONTROL TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_ESH_S_MU_RMAP_CONTROL INTO WA_ESH_S_MU_RMAP_CONTROL.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ESH_S_MU_RMAP_CONTROL_STR, 
SEL_STEP TYPE STRING,
PREV_STEP TYPE STRING,
TEMPL_PROP_VISIBLE TYPE STRING,
DP_VISIBLE TYPE STRING,
NODES_VISIBLE TYPE STRING,
STRUC_VISIBLE TYPE STRING,
ANALYTICS_VISIBLE TYPE STRING,
SETTINGS_VISIBLE TYPE STRING,
SEARCH_VISIBLE TYPE STRING,
TBO_VISIBLE TYPE STRING,
PREV_ENABLED TYPE STRING,
NEXT_ENABLED TYPE STRING,
DISPLAY_MODE TYPE STRING,
CHANGE_MODE TYPE STRING,
MODELING_MODE TYPE STRING,
MODELING_VISIBLE TYPE STRING,
STEPT_TEMPL_PROPERTIES TYPE STRING,
STEPN_TEMPL_PROPERTIES TYPE STRING,
STEPT_DATA_PROVIDER TYPE STRING,
STEPN_DATA_PROVIDER TYPE STRING,
STEPT_NODES TYPE STRING,
STEPN_NODES TYPE STRING,
STEPT_STRUCTURE TYPE STRING,
STEPN_STRUCTURE TYPE STRING,
STEPT_ANALYTICS TYPE STRING,
STEPN_ANALYTICS TYPE STRING,
STEPT_OPTIONAL_SETTINGS TYPE STRING,
STEPN_OPTIONAL_SETTINGS TYPE STRING,
STEPT_SEARCH_PATTERN TYPE STRING,
STEPN_SEARCH_PATTERN TYPE STRING,
STEPT_TBO TYPE STRING,
STEPN_TBO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_S_MU_RMAP_CONTROL_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_ESH_S_MU_RMAP_CONTROL_STR-SEL_STEP sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-PREV_STEP sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-TEMPL_PROP_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-DP_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-NODES_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STRUC_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-ANALYTICS_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-SETTINGS_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-SEARCH_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-TBO_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-PREV_ENABLED sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-NEXT_ENABLED sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-DISPLAY_MODE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-CHANGE_MODE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-MODELING_MODE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-MODELING_VISIBLE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_TEMPL_PROPERTIES sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_TEMPL_PROPERTIES sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_DATA_PROVIDER sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_DATA_PROVIDER sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_NODES sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_NODES sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_STRUCTURE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_STRUCTURE sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_ANALYTICS sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_ANALYTICS sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_OPTIONAL_SETTINGS sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_OPTIONAL_SETTINGS sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_SEARCH_PATTERN sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_SEARCH_PATTERN sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPT_TBO sy-vline 
WA_ESH_S_MU_RMAP_CONTROL_STR-STEPN_TBO sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.