ABAP Select data from SAP table RLITDATA 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 RLITDATA 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 RLITDATA. 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 RLITDATA 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_RLITDATA TYPE STANDARD TABLE OF RLITDATA,
      WA_RLITDATA TYPE RLITDATA,
      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: <RLITDATA> TYPE RLITDATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLITDATA
*  INTO TABLE @DATA(IT_RLITDATA2).
*--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_RLITDATA INDEX 1 INTO DATA(WA_RLITDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLITDATA>-MANDT = 1.
<RLITDATA>-POSTNO = 1.
<RLITDATA>-BJAHR = 1.
<RLITDATA>-POSTIT = 1.
<RLITDATA>-ACCTNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLITDATA-POSTQUAN, sy-vline,
  WA_RLITDATA-ACCTPTY, sy-vline,
  WA_RLITDATA-BALBPOST, sy-vline,
  WA_RLITDATA-SEQNOBPOST, sy-vline,
  WA_RLITDATA-PSHPNO, sy-vline,
  WA_RLITDATA-MOVTSTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLITDATA 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_RLITDATA 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_RLITDATA INTO WA_RLITDATA.


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

*Conversion exit GJAHR, internal->external for field BJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RLITDATA-BJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLITDATA-BJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RLITDATA-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLITDATA-MJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field LSMEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RLITDATA-LSMEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLITDATA-LSMEH.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field REFPOSTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RLITDATA-REFPOSTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLITDATA-REFPOSTYEAR.
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_RLITDATA_STR, 
MANDT TYPE STRING,
POSTNO TYPE STRING,
BJAHR TYPE STRING,
POSTIT TYPE STRING,
ACCTNO TYPE STRING,
POSTQUAN TYPE STRING,
ACCTPTY TYPE STRING,
BALBPOST TYPE STRING,
SEQNOBPOST TYPE STRING,
PSHPNO TYPE STRING,
MOVTSTP TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MBLIT TYPE STRING,
BWART TYPE STRING,
REFLFSNR TYPE STRING,
REFLFSPOS TYPE STRING,
REFDOCDATE TYPE STRING,
REFFRBNR TYPE STRING,
LSMNG TYPE STRING,
LSMEH TYPE STRING,
REFLFSNR_I TYPE STRING,
DOCNO TYPE STRING,
REFPOSTNO TYPE STRING,
REFPOSTYEAR TYPE STRING,
REFPOSTIT TYPE STRING,
GRP_POSTIT TYPE STRING,
CPGRPNO TYPE STRING,
CPSTATEIT TYPE STRING,
CPKIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLITDATA_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_RLITDATA_STR-MANDT sy-vline 
WA_RLITDATA_STR-POSTNO sy-vline 
WA_RLITDATA_STR-BJAHR sy-vline 
WA_RLITDATA_STR-POSTIT sy-vline 
WA_RLITDATA_STR-ACCTNO sy-vline 
WA_RLITDATA_STR-POSTQUAN sy-vline 
WA_RLITDATA_STR-ACCTPTY sy-vline 
WA_RLITDATA_STR-BALBPOST sy-vline 
WA_RLITDATA_STR-SEQNOBPOST sy-vline 
WA_RLITDATA_STR-PSHPNO sy-vline 
WA_RLITDATA_STR-MOVTSTP sy-vline 
WA_RLITDATA_STR-MBLNR sy-vline 
WA_RLITDATA_STR-MJAHR sy-vline 
WA_RLITDATA_STR-MBLIT sy-vline 
WA_RLITDATA_STR-BWART sy-vline 
WA_RLITDATA_STR-REFLFSNR sy-vline 
WA_RLITDATA_STR-REFLFSPOS sy-vline 
WA_RLITDATA_STR-REFDOCDATE sy-vline 
WA_RLITDATA_STR-REFFRBNR sy-vline 
WA_RLITDATA_STR-LSMNG sy-vline 
WA_RLITDATA_STR-LSMEH sy-vline 
WA_RLITDATA_STR-REFLFSNR_I sy-vline 
WA_RLITDATA_STR-DOCNO sy-vline 
WA_RLITDATA_STR-REFPOSTNO sy-vline 
WA_RLITDATA_STR-REFPOSTYEAR sy-vline 
WA_RLITDATA_STR-REFPOSTIT sy-vline 
WA_RLITDATA_STR-GRP_POSTIT sy-vline 
WA_RLITDATA_STR-CPGRPNO sy-vline 
WA_RLITDATA_STR-CPSTATEIT sy-vline 
WA_RLITDATA_STR-CPKIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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