ABAP Select data from SAP table FINSC_LD_CMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINSC_LD_CMP
*  INTO TABLE @DATA(IT_FINSC_LD_CMP2).
*--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_FINSC_LD_CMP INDEX 1 INTO DATA(WA_FINSC_LD_CMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINSC_LD_CMP>-MANDT = 1.
<FINSC_LD_CMP>-RLDNR = 1.
<FINSC_LD_CMP>-BUKRS = 1.
<FINSC_LD_CMP>-CURTPH = 1.
<FINSC_LD_CMP>-MLRELINDH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINSC_LD_CMP-CURTPK, sy-vline,
  WA_FINSC_LD_CMP-CURPOSK, sy-vline,
  WA_FINSC_LD_CMP-MLRELINDK, sy-vline,
  WA_FINSC_LD_CMP-CURTPO, sy-vline,
  WA_FINSC_LD_CMP-CURPOSO, sy-vline,
  WA_FINSC_LD_CMP-MLRELINDO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINSC_LD_CMP 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_FINSC_LD_CMP 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_FINSC_LD_CMP INTO WA_FINSC_LD_CMP.


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

*Conversion exit GJAHR, internal->external for field TOYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINSC_LD_CMP-TOYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINSC_LD_CMP-TOYEAR.
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_FINSC_LD_CMP_STR, 
MANDT TYPE STRING,
RLDNR TYPE STRING,
BUKRS TYPE STRING,
CURTPH TYPE STRING,
MLRELINDH TYPE STRING,
CURTPK TYPE STRING,
CURPOSK TYPE STRING,
MLRELINDK TYPE STRING,
CURTPO TYPE STRING,
CURPOSO TYPE STRING,
MLRELINDO TYPE STRING,
CURTPV TYPE STRING,
CURPOSV TYPE STRING,
MLRELINDV TYPE STRING,
CURTPB TYPE STRING,
CURPOSB TYPE STRING,
MLRELINDB TYPE STRING,
CURTPC TYPE STRING,
CURPOSC TYPE STRING,
MLRELINDC TYPE STRING,
CURTPD TYPE STRING,
CURPOSD TYPE STRING,
MLRELINDD TYPE STRING,
CURTPE TYPE STRING,
CURPOSE TYPE STRING,
MLRELINDE TYPE STRING,
CURTPF TYPE STRING,
CURPOSF TYPE STRING,
MLRELINDF TYPE STRING,
CURTPG TYPE STRING,
CURPOSG TYPE STRING,
MLRELINDG TYPE STRING,
PERIV TYPE STRING,
PARGLACCTS TYPE STRING,
OPVAR TYPE STRING,
TOYEAR TYPE STRING,
WRITE_DOCNR_LD TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
FUNCTIONAL_CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINSC_LD_CMP_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_FINSC_LD_CMP_STR-MANDT sy-vline 
WA_FINSC_LD_CMP_STR-RLDNR sy-vline 
WA_FINSC_LD_CMP_STR-BUKRS sy-vline 
WA_FINSC_LD_CMP_STR-CURTPH sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDH sy-vline 
WA_FINSC_LD_CMP_STR-CURTPK sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSK sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDK sy-vline 
WA_FINSC_LD_CMP_STR-CURTPO sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSO sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDO sy-vline 
WA_FINSC_LD_CMP_STR-CURTPV sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSV sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDV sy-vline 
WA_FINSC_LD_CMP_STR-CURTPB sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSB sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDB sy-vline 
WA_FINSC_LD_CMP_STR-CURTPC sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSC sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDC sy-vline 
WA_FINSC_LD_CMP_STR-CURTPD sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSD sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDD sy-vline 
WA_FINSC_LD_CMP_STR-CURTPE sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSE sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDE sy-vline 
WA_FINSC_LD_CMP_STR-CURTPF sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSF sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDF sy-vline 
WA_FINSC_LD_CMP_STR-CURTPG sy-vline 
WA_FINSC_LD_CMP_STR-CURPOSG sy-vline 
WA_FINSC_LD_CMP_STR-MLRELINDG sy-vline 
WA_FINSC_LD_CMP_STR-PERIV sy-vline 
WA_FINSC_LD_CMP_STR-PARGLACCTS sy-vline 
WA_FINSC_LD_CMP_STR-OPVAR sy-vline 
WA_FINSC_LD_CMP_STR-TOYEAR sy-vline 
WA_FINSC_LD_CMP_STR-WRITE_DOCNR_LD sy-vline 
WA_FINSC_LD_CMP_STR-ACC_PRINCIPLE sy-vline 
WA_FINSC_LD_CMP_STR-FUNCTIONAL_CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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