ABAP Select data from SAP table CRMT_BUAG_CONFIG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_BUAG_CONFIG 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 CRMT_BUAG_CONFIG. 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 CRMT_BUAG_CONFIG 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_CRMT_BUAG_CONFIG TYPE STANDARD TABLE OF CRMT_BUAG_CONFIG,
      WA_CRMT_BUAG_CONFIG TYPE CRMT_BUAG_CONFIG,
      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: <CRMT_BUAG_CONFIG> TYPE CRMT_BUAG_CONFIG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_BUAG_CONFIG
*  INTO TABLE @DATA(IT_CRMT_BUAG_CONFIG2).
*--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_CRMT_BUAG_CONFIG INDEX 1 INTO DATA(WA_CRMT_BUAG_CONFIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_BUAG_CONFIG>-APPLY = 1.
<CRMT_BUAG_CONFIG>-CANCEL = 1.
<CRMT_BUAG_CONFIG>-CLEAR = 1.
<CRMT_BUAG_CONFIG>-CONFIRM = 1.
<CRMT_BUAG_CONFIG>-EDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_BUAG_CONFIG-SAVE, sy-vline,
  WA_CRMT_BUAG_CONFIG-SAVEANDBACK, sy-vline,
  WA_CRMT_BUAG_CONFIG-LEAVEWINDOW, sy-vline,
  WA_CRMT_BUAG_CONFIG-MOREFIELDS, sy-vline,
  WA_CRMT_BUAG_CONFIG-LEAVECHECK, sy-vline,
  WA_CRMT_BUAG_CONFIG-CVV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_BUAG_CONFIG 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_CRMT_BUAG_CONFIG 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_CRMT_BUAG_CONFIG INTO WA_CRMT_BUAG_CONFIG.


*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_CRMT_BUAG_CONFIG_STR, 
APPLY TYPE STRING,
CANCEL TYPE STRING,
CLEAR TYPE STRING,
CONFIRM TYPE STRING,
EDIT TYPE STRING,
SAVE TYPE STRING,
SAVEANDBACK TYPE STRING,
LEAVEWINDOW TYPE STRING,
MOREFIELDS TYPE STRING,
LEAVECHECK TYPE STRING,
CVV TYPE STRING,
VIEW_SIZE TYPE STRING,
NO_BUTTON TYPE STRING,
SELECTED_LINK_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_BUAG_CONFIG_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_CRMT_BUAG_CONFIG_STR-APPLY sy-vline 
WA_CRMT_BUAG_CONFIG_STR-CANCEL sy-vline 
WA_CRMT_BUAG_CONFIG_STR-CLEAR sy-vline 
WA_CRMT_BUAG_CONFIG_STR-CONFIRM sy-vline 
WA_CRMT_BUAG_CONFIG_STR-EDIT sy-vline 
WA_CRMT_BUAG_CONFIG_STR-SAVE sy-vline 
WA_CRMT_BUAG_CONFIG_STR-SAVEANDBACK sy-vline 
WA_CRMT_BUAG_CONFIG_STR-LEAVEWINDOW sy-vline 
WA_CRMT_BUAG_CONFIG_STR-MOREFIELDS sy-vline 
WA_CRMT_BUAG_CONFIG_STR-LEAVECHECK sy-vline 
WA_CRMT_BUAG_CONFIG_STR-CVV sy-vline 
WA_CRMT_BUAG_CONFIG_STR-VIEW_SIZE sy-vline 
WA_CRMT_BUAG_CONFIG_STR-NO_BUTTON sy-vline 
WA_CRMT_BUAG_CONFIG_STR-SELECTED_LINK_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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