ABAP Select data from SAP table RCGLS_CONDBUF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCGLS_CONDBUF
*  INTO TABLE @DATA(IT_RCGLS_CONDBUF2).
*--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_RCGLS_CONDBUF INDEX 1 INTO DATA(WA_RCGLS_CONDBUF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCGLS_CONDBUF>-VALFLG = 1.
<RCGLS_CONDBUF>-CHCOFLG = 1.
<RCGLS_CONDBUF>-LOCKMOD = 1.
<RCGLS_CONDBUF>-LOGLOCKMOD = 1.
<RCGLS_CONDBUF>-SAVEMOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCGLS_CONDBUF-SPLIT, sy-vline,
  WA_RCGLS_CONDBUF-BUF_ORIG_INDEX, sy-vline,
  WA_RCGLS_CONDBUF-CHANGENO, sy-vline,
  WA_RCGLS_CONDBUF-KEYDATE, sy-vline,
  WA_RCGLS_CONDBUF-MANDT, sy-vline,
  WA_RCGLS_CONDBUF-DOKAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCGLS_CONDBUF 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_RCGLS_CONDBUF 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_RCGLS_CONDBUF INTO WA_RCGLS_CONDBUF.


*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 ALPHA, internal->external for field CHANGENO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGLS_CONDBUF-CHANGENO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGLS_CONDBUF-CHANGENO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGLS_CONDBUF-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGLS_CONDBUF-DOKNR.
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_RCGLS_CONDBUF_STR, 
VALFLG TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
LOGLOCKMOD TYPE STRING,
SAVEMOD TYPE STRING,
SPLIT TYPE STRING,
BUF_ORIG_INDEX TYPE STRING,
CHANGENO TYPE STRING,
KEYDATE TYPE STRING,
MANDT TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
IFLDELINE TYPE STRING,
LDELINE TYPE STRING,
COMPOP TYPE STRING,
COMPVALTYPE TYPE STRING,
COMPVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCGLS_CONDBUF_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_RCGLS_CONDBUF_STR-VALFLG sy-vline 
WA_RCGLS_CONDBUF_STR-CHCOFLG sy-vline 
WA_RCGLS_CONDBUF_STR-LOCKMOD sy-vline 
WA_RCGLS_CONDBUF_STR-LOGLOCKMOD sy-vline 
WA_RCGLS_CONDBUF_STR-SAVEMOD sy-vline 
WA_RCGLS_CONDBUF_STR-SPLIT sy-vline 
WA_RCGLS_CONDBUF_STR-BUF_ORIG_INDEX sy-vline 
WA_RCGLS_CONDBUF_STR-CHANGENO sy-vline 
WA_RCGLS_CONDBUF_STR-KEYDATE sy-vline 
WA_RCGLS_CONDBUF_STR-MANDT sy-vline 
WA_RCGLS_CONDBUF_STR-DOKAR sy-vline 
WA_RCGLS_CONDBUF_STR-DOKNR sy-vline 
WA_RCGLS_CONDBUF_STR-DOKVR sy-vline 
WA_RCGLS_CONDBUF_STR-DOKTL sy-vline 
WA_RCGLS_CONDBUF_STR-IFLDELINE sy-vline 
WA_RCGLS_CONDBUF_STR-LDELINE sy-vline 
WA_RCGLS_CONDBUF_STR-COMPOP sy-vline 
WA_RCGLS_CONDBUF_STR-COMPVALTYPE sy-vline 
WA_RCGLS_CONDBUF_STR-COMPVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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