ABAP Select data from SAP table KREPCKPH 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 KREPCKPH 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 KREPCKPH. 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 KREPCKPH 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_KREPCKPH TYPE STANDARD TABLE OF KREPCKPH,
      WA_KREPCKPH TYPE KREPCKPH,
      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: <KREPCKPH> TYPE KREPCKPH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KREPCKPH
*  INTO TABLE @DATA(IT_KREPCKPH2).
*--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_KREPCKPH INDEX 1 INTO DATA(WA_KREPCKPH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KREPCKPH>-MANDT = 1.
<KREPCKPH>-KSTRG = 1.
<KREPCKPH>-DATBI = 1.
<KREPCKPH>-DATAB = 1.
<KREPCKPH>-KOKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KREPCKPH-BUKRS, sy-vline,
  WA_KREPCKPH-WERKS, sy-vline,
  WA_KREPCKPH-GSBER, sy-vline,
  WA_KREPCKPH-FUNC_AREA, sy-vline,
  WA_KREPCKPH-OBJNR, sy-vline,
  WA_KREPCKPH-UEKTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KREPCKPH 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_KREPCKPH 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_KREPCKPH INTO WA_KREPCKPH.


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

*Conversion exit ALPHA, internal->external for field FERC_IND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KREPCKPH-FERC_IND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KREPCKPH-FERC_IND.
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_KREPCKPH_STR, 
MANDT TYPE STRING,
KSTRG TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
FUNC_AREA TYPE STRING,
OBJNR TYPE STRING,
UEKTR TYPE STRING,
KTRTY TYPE STRING,
VAKTR TYPE STRING,
LTEXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
KSTAT TYPE STRING,
STDAT TYPE STRING,
LOEKZ TYPE STRING,
OBJWR TYPE STRING,
KVEWE TYPE STRING,
KAPPL TYPE STRING,
KALSM TYPE STRING,
ZSCHL TYPE STRING,
AWOBA TYPE STRING,
AWSLS TYPE STRING,
FCPMG TYPE STRING,
PRCTR TYPE STRING,
SAPRL TYPE STRING,
KTRAT TYPE STRING,
KALNR TYPE STRING,
KLVAR TYPE STRING,
LOEKENNZ TYPE STRING,
KTRZB TYPE STRING,
FERC_IND TYPE STRING,
KTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KREPCKPH_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_KREPCKPH_STR-MANDT sy-vline 
WA_KREPCKPH_STR-KSTRG sy-vline 
WA_KREPCKPH_STR-DATBI sy-vline 
WA_KREPCKPH_STR-DATAB sy-vline 
WA_KREPCKPH_STR-KOKRS sy-vline 
WA_KREPCKPH_STR-BUKRS sy-vline 
WA_KREPCKPH_STR-WERKS sy-vline 
WA_KREPCKPH_STR-GSBER sy-vline 
WA_KREPCKPH_STR-FUNC_AREA sy-vline 
WA_KREPCKPH_STR-OBJNR sy-vline 
WA_KREPCKPH_STR-UEKTR sy-vline 
WA_KREPCKPH_STR-KTRTY sy-vline 
WA_KREPCKPH_STR-VAKTR sy-vline 
WA_KREPCKPH_STR-LTEXT sy-vline 
WA_KREPCKPH_STR-ERNAM sy-vline 
WA_KREPCKPH_STR-ERDAT sy-vline 
WA_KREPCKPH_STR-AENAM sy-vline 
WA_KREPCKPH_STR-AEDAT sy-vline 
WA_KREPCKPH_STR-KSTAT sy-vline 
WA_KREPCKPH_STR-STDAT sy-vline 
WA_KREPCKPH_STR-LOEKZ sy-vline 
WA_KREPCKPH_STR-OBJWR sy-vline 
WA_KREPCKPH_STR-KVEWE sy-vline 
WA_KREPCKPH_STR-KAPPL sy-vline 
WA_KREPCKPH_STR-KALSM sy-vline 
WA_KREPCKPH_STR-ZSCHL sy-vline 
WA_KREPCKPH_STR-AWOBA sy-vline 
WA_KREPCKPH_STR-AWSLS sy-vline 
WA_KREPCKPH_STR-FCPMG sy-vline 
WA_KREPCKPH_STR-PRCTR sy-vline 
WA_KREPCKPH_STR-SAPRL sy-vline 
WA_KREPCKPH_STR-KTRAT sy-vline 
WA_KREPCKPH_STR-KALNR sy-vline 
WA_KREPCKPH_STR-KLVAR sy-vline 
WA_KREPCKPH_STR-LOEKENNZ sy-vline 
WA_KREPCKPH_STR-KTRZB sy-vline 
WA_KREPCKPH_STR-FERC_IND sy-vline 
WA_KREPCKPH_STR-KTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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