ABAP Select data from SAP table ROIJ_RELPROF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJ_RELPROF
*  INTO TABLE @DATA(IT_ROIJ_RELPROF2).
*--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_ROIJ_RELPROF INDEX 1 INTO DATA(WA_ROIJ_RELPROF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJ_RELPROF>-CLIENT = 1.
<ROIJ_RELPROF>-REL_ID = 1.
<ROIJ_RELPROF>-SIM_SCHED_TYP = 1.
<ROIJ_RELPROF>-FROMDATE = 1.
<ROIJ_RELPROF>-TODATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJ_RELPROF-PBPROF_ID, sy-vline,
  WA_ROIJ_RELPROF-ERDAT, sy-vline,
  WA_ROIJ_RELPROF-ERZEIT, sy-vline,
  WA_ROIJ_RELPROF-ERNAM, sy-vline,
  WA_ROIJ_RELPROF-AEDAT, sy-vline,
  WA_ROIJ_RELPROF-AEZEIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJ_RELPROF 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_ROIJ_RELPROF 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_ROIJ_RELPROF INTO WA_ROIJ_RELPROF.


*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_ROIJ_RELPROF_STR, 
CLIENT TYPE STRING,
REL_ID TYPE STRING,
SIM_SCHED_TYP TYPE STRING,
FROMDATE TYPE STRING,
TODATE TYPE STRING,
PBPROF_ID TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
TKTSELECT TYPE STRING,
TSY_RANGE TYPE STRING,
LOC_RANGE TYPE STRING,
MAT_RANGE TYPE STRING,
BTC_RANGE TYPE STRING,
DOC_RANGE TYPE STRING,
REL_ID_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJ_RELPROF_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_ROIJ_RELPROF_STR-CLIENT sy-vline 
WA_ROIJ_RELPROF_STR-REL_ID sy-vline 
WA_ROIJ_RELPROF_STR-SIM_SCHED_TYP sy-vline 
WA_ROIJ_RELPROF_STR-FROMDATE sy-vline 
WA_ROIJ_RELPROF_STR-TODATE sy-vline 
WA_ROIJ_RELPROF_STR-PBPROF_ID sy-vline 
WA_ROIJ_RELPROF_STR-ERDAT sy-vline 
WA_ROIJ_RELPROF_STR-ERZEIT sy-vline 
WA_ROIJ_RELPROF_STR-ERNAM sy-vline 
WA_ROIJ_RELPROF_STR-AEDAT sy-vline 
WA_ROIJ_RELPROF_STR-AEZEIT sy-vline 
WA_ROIJ_RELPROF_STR-AENAM sy-vline 
WA_ROIJ_RELPROF_STR-BLOIND sy-vline 
WA_ROIJ_RELPROF_STR-DELIND sy-vline 
WA_ROIJ_RELPROF_STR-TKTSELECT sy-vline 
WA_ROIJ_RELPROF_STR-TSY_RANGE sy-vline 
WA_ROIJ_RELPROF_STR-LOC_RANGE sy-vline 
WA_ROIJ_RELPROF_STR-MAT_RANGE sy-vline 
WA_ROIJ_RELPROF_STR-BTC_RANGE sy-vline 
WA_ROIJ_RELPROF_STR-DOC_RANGE sy-vline 
WA_ROIJ_RELPROF_STR-REL_ID_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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