ABAP Select data from SAP table RJLJGABB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJLJGABB
*  INTO TABLE @DATA(IT_RJLJGABB2).
*--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_RJLJGABB INDEX 1 INTO DATA(WA_RJLJGABB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJLJGABB>-MARK = 1.
<RJLJGABB>-BELEINH = 1.
<RJLJGABB>-INHK_TECH2 = 1.
<RJLJGABB>-INHK_KFM = 1.
<RJLJGABB>-AVMPOS_ART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJLJGABB-BRAN1, sy-vline,
  WA_RJLJGABB-KUKARR, sy-vline,
  WA_RJLJGABB-IN_GPNR, sy-vline,
  WA_RJLJGABB-AR_GPNR, sy-vline,
  WA_RJLJGABB-BEZIRK_AG, sy-vline,
  WA_RJLJGABB-BEZIRK_IS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJLJGABB 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_RJLJGABB 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_RJLJGABB INTO WA_RJLJGABB.


*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_RJLJGABB_STR, 
MARK TYPE STRING,
BELEINH TYPE STRING,
INHK_TECH2 TYPE STRING,
INHK_KFM TYPE STRING,
AVMPOS_ART TYPE STRING,
BRAN1 TYPE STRING,
KUKARR TYPE STRING,
IN_GPNR TYPE STRING,
AR_GPNR TYPE STRING,
BEZIRK_AG TYPE STRING,
BEZIRK_IS TYPE STRING,
PRDHA TYPE STRING,
VTNR TYPE STRING,
MATNR TYPE STRING,
DIENTYP TYPE STRING,
FATBB1 TYPE STRING,
FATBB2 TYPE STRING,
FATBB3 TYPE STRING,
FATBB4 TYPE STRING,
FATBB5 TYPE STRING,
FATBB6 TYPE STRING,
FATBB7 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJLJGABB_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_RJLJGABB_STR-MARK sy-vline 
WA_RJLJGABB_STR-BELEINH sy-vline 
WA_RJLJGABB_STR-INHK_TECH2 sy-vline 
WA_RJLJGABB_STR-INHK_KFM sy-vline 
WA_RJLJGABB_STR-AVMPOS_ART sy-vline 
WA_RJLJGABB_STR-BRAN1 sy-vline 
WA_RJLJGABB_STR-KUKARR sy-vline 
WA_RJLJGABB_STR-IN_GPNR sy-vline 
WA_RJLJGABB_STR-AR_GPNR sy-vline 
WA_RJLJGABB_STR-BEZIRK_AG sy-vline 
WA_RJLJGABB_STR-BEZIRK_IS sy-vline 
WA_RJLJGABB_STR-PRDHA sy-vline 
WA_RJLJGABB_STR-VTNR sy-vline 
WA_RJLJGABB_STR-MATNR sy-vline 
WA_RJLJGABB_STR-DIENTYP sy-vline 
WA_RJLJGABB_STR-FATBB1 sy-vline 
WA_RJLJGABB_STR-FATBB2 sy-vline 
WA_RJLJGABB_STR-FATBB3 sy-vline 
WA_RJLJGABB_STR-FATBB4 sy-vline 
WA_RJLJGABB_STR-FATBB5 sy-vline 
WA_RJLJGABB_STR-FATBB6 sy-vline 
WA_RJLJGABB_STR-FATBB7 sy-vline      INTO ld_text SEPARATED BY SPACE.

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