ABAP Select data from SAP table RECP_PUBLIC_ENCUMBRANCE_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECP_PUBLIC_ENCUMBRANCE_C
*  INTO TABLE @DATA(IT_RECP_PUBLIC_ENCUMBRANCE_C2).
*--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_RECP_PUBLIC_ENCUMBRANCE_C INDEX 1 INTO DATA(WA_RECP_PUBLIC_ENCUMBRANCE_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECP_PUBLIC_ENCUMBRANCE_C>-MANDT = 1.
<RECP_PUBLIC_ENCUMBRANCE_C>-INTRENO = 1.
<RECP_PUBLIC_ENCUMBRANCE_C>-PEID = 1.
<RECP_PUBLIC_ENCUMBRANCE_C>-OBJNR = 1.
<RECP_PUBLIC_ENCUMBRANCE_C>-CREATIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECP_PUBLIC_ENCUMBRANCE_C-RERF, sy-vline,
  WA_RECP_PUBLIC_ENCUMBRANCE_C-DERF, sy-vline,
  WA_RECP_PUBLIC_ENCUMBRANCE_C-TERF, sy-vline,
  WA_RECP_PUBLIC_ENCUMBRANCE_C-REHER, sy-vline,
  WA_RECP_PUBLIC_ENCUMBRANCE_C-RBEAR, sy-vline,
  WA_RECP_PUBLIC_ENCUMBRANCE_C-DBEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECP_PUBLIC_ENCUMBRANCE_C 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_RECP_PUBLIC_ENCUMBRANCE_C 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_RECP_PUBLIC_ENCUMBRANCE_C INTO WA_RECP_PUBLIC_ENCUMBRANCE_C.


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

*Conversion exit REDAT, internal->external for field PEREVOCDATE
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECP_PUBLIC_ENCUMBRANCE_C-PEREVOCDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECP_PUBLIC_ENCUMBRANCE_C-PEREVOCDATE.
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_RECP_PUBLIC_ENCUMBRANCE_C_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
PEID TYPE STRING,
OBJNR TYPE STRING,
CREATIONTYPE TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
RESPONSIBLE TYPE STRING,
USEREXCLUSIVE TYPE STRING,
AUTHGRP TYPE STRING,
PETYPE TYPE STRING,
XPE TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
LOCHIER TYPE STRING,
PEERPAGENO TYPE STRING,
PECSNO TYPE STRING,
PEPSNO TYPE STRING,
PEDPNO TYPE STRING,
PEPREDPNO TYPE STRING,
PEPSTYPE TYPE STRING,
RGRNART TYPE STRING,
PEPLANDATE TYPE STRING,
PEEFFECTDATE TYPE STRING,
PECHANGEDATE TYPE STRING,
PESTATEMENTDATE TYPE STRING,
PELASTMODDATE TYPE STRING,
PEREVOCDATE TYPE STRING,
XAUTHGRP TYPE STRING,
XLOCHIER TYPE STRING,
XPEPSTYPE TYPE STRING,
XRGRNART TYPE STRING,
XPETYPE TYPE STRING,
XDATERANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECP_PUBLIC_ENCUMBRANCE_C_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_RECP_PUBLIC_ENCUMBRANCE_C_STR-MANDT sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-INTRENO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEID sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-OBJNR sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-CREATIONTYPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-RERF sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-DERF sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-TERF sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-REHER sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-RBEAR sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-DBEAR sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-TBEAR sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-RBHER sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-RESPONSIBLE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-USEREXCLUSIVE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-AUTHGRP sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PETYPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-VALIDFROM sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-VALIDTO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-LOCHIER sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEERPAGENO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PECSNO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEPSNO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEDPNO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEPREDPNO sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEPSTYPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-RGRNART sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEPLANDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEEFFECTDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PECHANGEDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PESTATEMENTDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PELASTMODDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-PEREVOCDATE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XAUTHGRP sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XLOCHIER sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XPEPSTYPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XRGRNART sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XPETYPE sy-vline 
WA_RECP_PUBLIC_ENCUMBRANCE_C_STR-XDATERANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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