ABAP Select data from SAP table CRMT_BUS_CENTRAL_AND_GROUP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_BUS_CENTRAL_AND_GROUP 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_BUS_CENTRAL_AND_GROUP. 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_BUS_CENTRAL_AND_GROUP 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_BUS_CENTRAL_AND_GROUP TYPE STANDARD TABLE OF CRMT_BUS_CENTRAL_AND_GROUP,
      WA_CRMT_BUS_CENTRAL_AND_GROUP TYPE CRMT_BUS_CENTRAL_AND_GROUP,
      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_BUS_CENTRAL_AND_GROUP> TYPE CRMT_BUS_CENTRAL_AND_GROUP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_BUS_CENTRAL_AND_GROUP
*  INTO TABLE @DATA(IT_CRMT_BUS_CENTRAL_AND_GROUP2).
*--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_BUS_CENTRAL_AND_GROUP INDEX 1 INTO DATA(WA_CRMT_BUS_CENTRAL_AND_GROUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_BUS_CENTRAL_AND_GROUP>-NAMEGROUP1 = 1.
<CRMT_BUS_CENTRAL_AND_GROUP>-NAMEGROUP2 = 1.
<CRMT_BUS_CENTRAL_AND_GROUP>-GROUPTYPE = 1.
<CRMT_BUS_CENTRAL_AND_GROUP>-SEARCHTERM1 = 1.
<CRMT_BUS_CENTRAL_AND_GROUP>-SEARCHTERM2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_BUS_CENTRAL_AND_GROUP-PARTNERTYPE, sy-vline,
  WA_CRMT_BUS_CENTRAL_AND_GROUP-AUTHORIZATIONGROUP, sy-vline,
  WA_CRMT_BUS_CENTRAL_AND_GROUP-PARTNERLANGUAGE, sy-vline,
  WA_CRMT_BUS_CENTRAL_AND_GROUP-PARTNERLANGUAGEISO, sy-vline,
  WA_CRMT_BUS_CENTRAL_AND_GROUP-DATAORIGINTYPE, sy-vline,
  WA_CRMT_BUS_CENTRAL_AND_GROUP-CENTRALARCHIVINGFLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_BUS_CENTRAL_AND_GROUP 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_BUS_CENTRAL_AND_GROUP 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_BUS_CENTRAL_AND_GROUP INTO WA_CRMT_BUS_CENTRAL_AND_GROUP.


*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.

*Conversion exit ISOLA, internal->external for field PARTNERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BUS_CENTRAL_AND_GROUP-PARTNERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BUS_CENTRAL_AND_GROUP-PARTNERLANGUAGE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_CRMT_BUS_CENTRAL_AND_GROUP_STR, 
NAMEGROUP1 TYPE STRING,
NAMEGROUP2 TYPE STRING,
GROUPTYPE TYPE STRING,
SEARCHTERM1 TYPE STRING,
SEARCHTERM2 TYPE STRING,
PARTNERTYPE TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
PARTNERLANGUAGE TYPE STRING,
PARTNERLANGUAGEISO TYPE STRING,
DATAORIGINTYPE TYPE STRING,
CENTRALARCHIVINGFLAG TYPE STRING,
CENTRALBLOCK TYPE STRING,
TITLE_KEY TYPE STRING,
CONTACTALLOWANCE TYPE STRING,
PARTNEREXTERNAL TYPE STRING,
TITLELETTER TYPE STRING,
NOTRELEASED TYPE STRING,
COMM_TYPE TYPE STRING,
PRINT_MODE TYPE STRING,
BP_EEW_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_BUS_CENTRAL_AND_GROUP_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_BUS_CENTRAL_AND_GROUP_STR-NAMEGROUP1 sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-NAMEGROUP2 sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-GROUPTYPE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-SEARCHTERM1 sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-SEARCHTERM2 sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-PARTNERTYPE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-AUTHORIZATIONGROUP sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-PARTNERLANGUAGE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-PARTNERLANGUAGEISO sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-DATAORIGINTYPE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-CENTRALARCHIVINGFLAG sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-CENTRALBLOCK sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-TITLE_KEY sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-CONTACTALLOWANCE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-PARTNEREXTERNAL sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-TITLELETTER sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-NOTRELEASED sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-COMM_TYPE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-PRINT_MODE sy-vline 
WA_CRMT_BUS_CENTRAL_AND_GROUP_STR-BP_EEW_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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