ABAP Select data from SAP table PRCT_COND_EXTERNAL_INPUTM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRCT_COND_EXTERNAL_INPUTM
*  INTO TABLE @DATA(IT_PRCT_COND_EXTERNAL_INPUTM2).
*--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_PRCT_COND_EXTERNAL_INPUTM INDEX 1 INTO DATA(WA_PRCT_COND_EXTERNAL_INPUTM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRCT_COND_EXTERNAL_INPUTM>-KPOSN = 1.
<PRCT_COND_EXTERNAL_INPUTM>-KSCHL = 1.
<PRCT_COND_EXTERNAL_INPUTM>-WAERS = 1.
<PRCT_COND_EXTERNAL_INPUTM>-KBETR = 1.
<PRCT_COND_EXTERNAL_INPUTM>-KPEIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRCT_COND_EXTERNAL_INPUTM-KMEIN, sy-vline,
  WA_PRCT_COND_EXTERNAL_INPUTM-KBETR_INITIAL, sy-vline,
  WA_PRCT_COND_EXTERNAL_INPUTM-KWERT, sy-vline,
  WA_PRCT_COND_EXTERNAL_INPUTM-KWERT_INITIAL, sy-vline,
  WA_PRCT_COND_EXTERNAL_INPUTM-KRECH, sy-vline,
  WA_PRCT_COND_EXTERNAL_INPUTM-KWAEH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRCT_COND_EXTERNAL_INPUTM 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_PRCT_COND_EXTERNAL_INPUTM 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_PRCT_COND_EXTERNAL_INPUTM INTO WA_PRCT_COND_EXTERNAL_INPUTM.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRCT_COND_EXTERNAL_INPUTM-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRCT_COND_EXTERNAL_INPUTM-KMEIN.
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_PRCT_COND_EXTERNAL_INPUTM_STR, 
KPOSN TYPE STRING,
KSCHL TYPE STRING,
WAERS TYPE STRING,
KBETR TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KBETR_INITIAL TYPE STRING,
KWERT TYPE STRING,
KWERT_INITIAL TYPE STRING,
KRECH TYPE STRING,
KWAEH TYPE STRING,
KNUMH TYPE STRING,
KOTABNR TYPE STRING,
KAWRT TYPE STRING,
KAWRT_INITIAL TYPE STRING,
KRUEK TYPE STRING,
VARCOND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRCT_COND_EXTERNAL_INPUTM_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_PRCT_COND_EXTERNAL_INPUTM_STR-KPOSN sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KSCHL sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-WAERS sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KBETR sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KPEIN sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KMEIN sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KBETR_INITIAL sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KWERT sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KWERT_INITIAL sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KRECH sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KWAEH sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KNUMH sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KOTABNR sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KAWRT sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KAWRT_INITIAL sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-KRUEK sy-vline 
WA_PRCT_COND_EXTERNAL_INPUTM_STR-VARCOND sy-vline      INTO ld_text SEPARATED BY SPACE.

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