ABAP Select data from SAP table RCGI5EXP1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCGI5EXP1 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 RCGI5EXP1. 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 RCGI5EXP1 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_RCGI5EXP1 TYPE STANDARD TABLE OF RCGI5EXP1,
      WA_RCGI5EXP1 TYPE RCGI5EXP1,
      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: <RCGI5EXP1> TYPE RCGI5EXP1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RCGI5EXP1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RCGI5EXP1
  INTO TABLE IT_RCGI5EXP1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCGI5EXP1
*  INTO TABLE @DATA(IT_RCGI5EXP12).
*--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_RCGI5EXP1 INDEX 1 INTO DATA(WA_RCGI5EXP12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RCGI5EXP1 ASSIGNING <RCGI5EXP1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCGI5EXP1>-RECN = 1.
<RCGI5EXP1>-PRIMARYKEY = 1.
<RCGI5EXP1>-FOREIGNKEY = 1.
<RCGI5EXP1>-FLGPRIMKEY = 1.
<RCGI5EXP1>-FLGFRGNKEY = 1.

ENDLOOP.

LOOP AT IT_RCGI5EXP1 INTO WA_RCGI5EXP1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCGI5EXP1-NAME_CHAR, sy-vline,
  WA_RCGI5EXP1-DESCR_CHAR, sy-vline,
  WA_RCGI5EXP1-COUNTER, sy-vline,
  WA_RCGI5EXP1-CHAR_VALUE, sy-vline,
  WA_RCGI5EXP1-DESCR_CVAL, sy-vline,
  WA_RCGI5EXP1-ACC1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCGI5EXP1 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_RCGI5EXP1 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_RCGI5EXP1 INTO WA_RCGI5EXP1.


*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 RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGI5EXP1-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGI5EXP1-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNO_ROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGI5EXP1-RECNO_ROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGI5EXP1-RECNO_ROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REF_RECNRH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGI5EXP1-REF_RECNRH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGI5EXP1-REF_RECNRH.
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_RCGI5EXP1_STR, 
RECN TYPE STRING,
PRIMARYKEY TYPE STRING,
FOREIGNKEY TYPE STRING,
FLGPRIMKEY TYPE STRING,
FLGFRGNKEY TYPE STRING,
NAME_CHAR TYPE STRING,
DESCR_CHAR TYPE STRING,
COUNTER TYPE STRING,
CHAR_VALUE TYPE STRING,
DESCR_CVAL TYPE STRING,
ACC1 TYPE STRING,
NUM_VAL_FM TYPE STRING,
MSEH_UNIT1 TYPE STRING,
ISOCODE1 TYPE STRING,
ACC2 TYPE STRING,
NUM_VAL_TO TYPE STRING,
MSEH_UNIT2 TYPE STRING,
ISOCODE2 TYPE STRING,
RECNO_ROOT TYPE STRING,
REF_RECNRH TYPE STRING,
PHR_CODE TYPE STRING,
PHR_TEXT TYPE STRING,
LONG_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCGI5EXP1_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_RCGI5EXP1_STR-RECN sy-vline 
WA_RCGI5EXP1_STR-PRIMARYKEY sy-vline 
WA_RCGI5EXP1_STR-FOREIGNKEY sy-vline 
WA_RCGI5EXP1_STR-FLGPRIMKEY sy-vline 
WA_RCGI5EXP1_STR-FLGFRGNKEY sy-vline 
WA_RCGI5EXP1_STR-NAME_CHAR sy-vline 
WA_RCGI5EXP1_STR-DESCR_CHAR sy-vline 
WA_RCGI5EXP1_STR-COUNTER sy-vline 
WA_RCGI5EXP1_STR-CHAR_VALUE sy-vline 
WA_RCGI5EXP1_STR-DESCR_CVAL sy-vline 
WA_RCGI5EXP1_STR-ACC1 sy-vline 
WA_RCGI5EXP1_STR-NUM_VAL_FM sy-vline 
WA_RCGI5EXP1_STR-MSEH_UNIT1 sy-vline 
WA_RCGI5EXP1_STR-ISOCODE1 sy-vline 
WA_RCGI5EXP1_STR-ACC2 sy-vline 
WA_RCGI5EXP1_STR-NUM_VAL_TO sy-vline 
WA_RCGI5EXP1_STR-MSEH_UNIT2 sy-vline 
WA_RCGI5EXP1_STR-ISOCODE2 sy-vline 
WA_RCGI5EXP1_STR-RECNO_ROOT sy-vline 
WA_RCGI5EXP1_STR-REF_RECNRH sy-vline 
WA_RCGI5EXP1_STR-PHR_CODE sy-vline 
WA_RCGI5EXP1_STR-PHR_TEXT sy-vline 
WA_RCGI5EXP1_STR-LONG_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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