ABAP Select data from SAP table REAJ_CONDREL_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REAJ_CONDREL_L
*  INTO TABLE @DATA(IT_REAJ_CONDREL_L2).
*--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_REAJ_CONDREL_L INDEX 1 INTO DATA(WA_REAJ_CONDREL_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REAJ_CONDREL_L>-XADJMRULE = 1.
<REAJ_CONDREL_L>-NEXTADJMDATE = 1.
<REAJ_CONDREL_L>-CHGADJMDATEICON = 1.
<REAJ_CONDREL_L>-ADJMDRECSTATUS = 1.
<REAJ_CONDREL_L>-XADJMDRECSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REAJ_CONDREL_L-SIMULATEADJMICON, sy-vline,
  WA_REAJ_CONDREL_L-EXECUTEADJMICON, sy-vline,
  WA_REAJ_CONDREL_L-REVERSALADJMICON, sy-vline,
  WA_REAJ_CONDREL_L-OBJNR, sy-vline,
  WA_REAJ_CONDREL_L-OBJTXTCALC, sy-vline,
  WA_REAJ_CONDREL_L-OBJIDENTCALC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REAJ_CONDREL_L 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_REAJ_CONDREL_L 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_REAJ_CONDREL_L INTO WA_REAJ_CONDREL_L.


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

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

*Conversion exit ALPHA, internal->external for field TERMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REAJ_CONDREL_L-TERMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REAJ_CONDREL_L-TERMNO.
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_REAJ_CONDREL_L_STR, 
XADJMRULE TYPE STRING,
NEXTADJMDATE TYPE STRING,
CHGADJMDATEICON TYPE STRING,
ADJMDRECSTATUS TYPE STRING,
XADJMDRECSTATUS TYPE STRING,
SIMULATEADJMICON TYPE STRING,
EXECUTEADJMICON TYPE STRING,
REVERSALADJMICON TYPE STRING,
OBJNR TYPE STRING,
OBJTXTCALC TYPE STRING,
OBJIDENTCALC TYPE STRING,
CONDTYPE TYPE STRING,
XCONDITION TYPE STRING,
CONDPURPOSEEXT TYPE STRING,
XMCONDPURPOSEEXT TYPE STRING,
CONDVALIDFROM TYPE STRING,
FIRSTADJMDATE TYPE STRING,
LASTADJMDATE TYPE STRING,
PTRCONDITION TYPE STRING,
ADJMMAINRULE TYPE STRING,
TERMNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REAJ_CONDREL_L_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_REAJ_CONDREL_L_STR-XADJMRULE sy-vline 
WA_REAJ_CONDREL_L_STR-NEXTADJMDATE sy-vline 
WA_REAJ_CONDREL_L_STR-CHGADJMDATEICON sy-vline 
WA_REAJ_CONDREL_L_STR-ADJMDRECSTATUS sy-vline 
WA_REAJ_CONDREL_L_STR-XADJMDRECSTATUS sy-vline 
WA_REAJ_CONDREL_L_STR-SIMULATEADJMICON sy-vline 
WA_REAJ_CONDREL_L_STR-EXECUTEADJMICON sy-vline 
WA_REAJ_CONDREL_L_STR-REVERSALADJMICON sy-vline 
WA_REAJ_CONDREL_L_STR-OBJNR sy-vline 
WA_REAJ_CONDREL_L_STR-OBJTXTCALC sy-vline 
WA_REAJ_CONDREL_L_STR-OBJIDENTCALC sy-vline 
WA_REAJ_CONDREL_L_STR-CONDTYPE sy-vline 
WA_REAJ_CONDREL_L_STR-XCONDITION sy-vline 
WA_REAJ_CONDREL_L_STR-CONDPURPOSEEXT sy-vline 
WA_REAJ_CONDREL_L_STR-XMCONDPURPOSEEXT sy-vline 
WA_REAJ_CONDREL_L_STR-CONDVALIDFROM sy-vline 
WA_REAJ_CONDREL_L_STR-FIRSTADJMDATE sy-vline 
WA_REAJ_CONDREL_L_STR-LASTADJMDATE sy-vline 
WA_REAJ_CONDREL_L_STR-PTRCONDITION sy-vline 
WA_REAJ_CONDREL_L_STR-ADJMMAINRULE sy-vline 
WA_REAJ_CONDREL_L_STR-TERMNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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