ABAP Select data from SAP table RCGLSYRVAL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCGLSYRVAL 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 RCGLSYRVAL. 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 RCGLSYRVAL 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_RCGLSYRVAL TYPE STANDARD TABLE OF RCGLSYRVAL,
      WA_RCGLSYRVAL TYPE RCGLSYRVAL,
      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: <RCGLSYRVAL> TYPE RCGLSYRVAL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCGLSYRVAL
*  INTO TABLE @DATA(IT_RCGLSYRVAL2).
*--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_RCGLSYRVAL INDEX 1 INTO DATA(WA_RCGLSYRVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCGLSYRVAL>-LSYTYPE = 1.
<RCGLSYRVAL>-LSYID = 1.
<RCGLSYRVAL>-ORD = 1.
<RCGLSYRVAL>-VAL_TYPE = 1.
<RCGLSYRVAL>-VAL_STRING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCGLSYRVAL-TDOBJECT, sy-vline,
  WA_RCGLSYRVAL-TDID, sy-vline,
  WA_RCGLSYRVAL-TDNAME, sy-vline,
  WA_RCGLSYRVAL-TDSPRAS, sy-vline,
  WA_RCGLSYRVAL-FILEP, sy-vline,
  WA_RCGLSYRVAL-DOKAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCGLSYRVAL 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_RCGLSYRVAL 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_RCGLSYRVAL INTO WA_RCGLSYRVAL.


*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 TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCGLSYRVAL-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGLSYRVAL-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCGLSYRVAL-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGLSYRVAL-LANGU.
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_RCGLSYRVAL_STR, 
LSYTYPE TYPE STRING,
LSYID TYPE STRING,
ORD TYPE STRING,
VAL_TYPE TYPE STRING,
VAL_STRING TYPE STRING,
TDOBJECT TYPE STRING,
TDID TYPE STRING,
TDNAME TYPE STRING,
TDSPRAS TYPE STRING,
FILEP TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
MARK_CHANG TYPE STRING,
LANGU TYPE STRING,
FTXT_COUNT TYPE STRING,
PARHIER TYPE STRING,
PAROBJ TYPE STRING,
PAROBJKEY TYPE STRING,
PAROBJPAR TYPE STRING,
PAROBJPARKEY TYPE STRING,
LENRECD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCGLSYRVAL_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_RCGLSYRVAL_STR-LSYTYPE sy-vline 
WA_RCGLSYRVAL_STR-LSYID sy-vline 
WA_RCGLSYRVAL_STR-ORD sy-vline 
WA_RCGLSYRVAL_STR-VAL_TYPE sy-vline 
WA_RCGLSYRVAL_STR-VAL_STRING sy-vline 
WA_RCGLSYRVAL_STR-TDOBJECT sy-vline 
WA_RCGLSYRVAL_STR-TDID sy-vline 
WA_RCGLSYRVAL_STR-TDNAME sy-vline 
WA_RCGLSYRVAL_STR-TDSPRAS sy-vline 
WA_RCGLSYRVAL_STR-FILEP sy-vline 
WA_RCGLSYRVAL_STR-DOKAR sy-vline 
WA_RCGLSYRVAL_STR-DOKNR sy-vline 
WA_RCGLSYRVAL_STR-DOKTL sy-vline 
WA_RCGLSYRVAL_STR-DOKVR sy-vline 
WA_RCGLSYRVAL_STR-MARK_CHANG sy-vline 
WA_RCGLSYRVAL_STR-LANGU sy-vline 
WA_RCGLSYRVAL_STR-FTXT_COUNT sy-vline 
WA_RCGLSYRVAL_STR-PARHIER sy-vline 
WA_RCGLSYRVAL_STR-PAROBJ sy-vline 
WA_RCGLSYRVAL_STR-PAROBJKEY sy-vline 
WA_RCGLSYRVAL_STR-PAROBJPAR sy-vline 
WA_RCGLSYRVAL_STR-PAROBJPARKEY sy-vline 
WA_RCGLSYRVAL_STR-LENRECD sy-vline      INTO ld_text SEPARATED BY SPACE.

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