ABAP Select data from SAP table REIS_AJ_AT_FINPLAN_L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REIS_AJ_AT_FINPLAN_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 REIS_AJ_AT_FINPLAN_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 REIS_AJ_AT_FINPLAN_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_REIS_AJ_AT_FINPLAN_L TYPE STANDARD TABLE OF REIS_AJ_AT_FINPLAN_L,
      WA_REIS_AJ_AT_FINPLAN_L TYPE REIS_AJ_AT_FINPLAN_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: <REIS_AJ_AT_FINPLAN_L> TYPE REIS_AJ_AT_FINPLAN_L.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_AJ_AT_FINPLAN_L
*  INTO TABLE @DATA(IT_REIS_AJ_AT_FINPLAN_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_REIS_AJ_AT_FINPLAN_L INDEX 1 INTO DATA(WA_REIS_AJ_AT_FINPLAN_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_AJ_AT_FINPLAN_L>-FINPOS = 1.
<REIS_AJ_AT_FINPLAN_L>-FINPOSNO = 1.
<REIS_AJ_AT_FINPLAN_L>-FINPOSVALIDFROM = 1.
<REIS_AJ_AT_FINPLAN_L>-FINPOSVALIDTO = 1.
<REIS_AJ_AT_FINPLAN_L>-FINPOSAMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_AJ_AT_FINPLAN_L-FINPOSREPAY, sy-vline,
  WA_REIS_AJ_AT_FINPLAN_L-FINPOSINTEREST, sy-vline,
  WA_REIS_AJ_AT_FINPLAN_L-FINPOSPROVIDER, sy-vline,
  WA_REIS_AJ_AT_FINPLAN_L-FINPOSLOANNO, sy-vline,
  WA_REIS_AJ_AT_FINPLAN_L-FINPOSREFLOAN, sy-vline,
  WA_REIS_AJ_AT_FINPLAN_L-FINPOSNOSUMCOSTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_AJ_AT_FINPLAN_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_REIS_AJ_AT_FINPLAN_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_REIS_AJ_AT_FINPLAN_L INTO WA_REIS_AJ_AT_FINPLAN_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 FINPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_AJ_AT_FINPLAN_L-FINPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_AJ_AT_FINPLAN_L-FINPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field FINPOSVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_AJ_AT_FINPLAN_L-FINPOSVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_AJ_AT_FINPLAN_L-FINPOSVALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RECUP, internal->external for field FINPOSAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_RECUP_OUTPUT'
  EXPORTING
    input =                      WA_REIS_AJ_AT_FINPLAN_L-FINPOSAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_AJ_AT_FINPLAN_L-FINPOSAMOUNT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field FINTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_AJ_AT_FINPLAN_L-FINTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_AJ_AT_FINPLAN_L-FINTYPE.
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_REIS_AJ_AT_FINPLAN_L_STR, 
FINPOS TYPE STRING,
FINPOSNO TYPE STRING,
FINPOSVALIDFROM TYPE STRING,
FINPOSVALIDTO TYPE STRING,
FINPOSAMOUNT TYPE STRING,
FINPOSREPAY TYPE STRING,
FINPOSINTEREST TYPE STRING,
FINPOSPROVIDER TYPE STRING,
FINPOSLOANNO TYPE STRING,
FINPOSREFLOAN TYPE STRING,
FINPOSNOSUMCOSTS TYPE STRING,
XFINPOS TYPE STRING,
FINPOSGRP TYPE STRING,
XFINPOSGRP TYPE STRING,
FINTYPE TYPE STRING,
FINPOSLOANIDENT TYPE STRING,
PERCENTAMTCOSTS TYPE STRING,
XFINTYPE TYPE STRING,
FINPOSSOGRP TYPE STRING,
FINPOSSOPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_AJ_AT_FINPLAN_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_REIS_AJ_AT_FINPLAN_L_STR-FINPOS sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSNO sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSVALIDFROM sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSVALIDTO sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSAMOUNT sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSREPAY sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSINTEREST sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSPROVIDER sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSLOANNO sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSREFLOAN sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSNOSUMCOSTS sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-XFINPOS sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSGRP sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-XFINPOSGRP sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINTYPE sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSLOANIDENT sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-PERCENTAMTCOSTS sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-XFINTYPE sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSSOGRP sy-vline 
WA_REIS_AJ_AT_FINPLAN_L_STR-FINPOSSOPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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