ABAP Select data from SAP table FKKINVDOC_H_SHORT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKINVDOC_H_SHORT
*  INTO TABLE @DATA(IT_FKKINVDOC_H_SHORT2).
*--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_FKKINVDOC_H_SHORT INDEX 1 INTO DATA(WA_FKKINVDOC_H_SHORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKINVDOC_H_SHORT>-INVDOCNO = 1.
<FKKINVDOC_H_SHORT>-APPLK = 1.
<FKKINVDOC_H_SHORT>-INV_PROCESS = 1.
<FKKINVDOC_H_SHORT>-INV_TYPE = 1.
<FKKINVDOC_H_SHORT>-TECHDOCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKINVDOC_H_SHORT-TARGPROCESS, sy-vline,
  WA_FKKINVDOC_H_SHORT-GPART, sy-vline,
  WA_FKKINVDOC_H_SHORT-VKONT, sy-vline,
  WA_FKKINVDOC_H_SHORT-ABWVK, sy-vline,
  WA_FKKINVDOC_H_SHORT-ABWBL, sy-vline,
  WA_FKKINVDOC_H_SHORT-CRDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKINVDOC_H_SHORT 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_FKKINVDOC_H_SHORT 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_FKKINVDOC_H_SHORT INTO WA_FKKINVDOC_H_SHORT.


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

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

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

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

*Conversion exit EXBEL, internal->external for field EXBEL
CALL FUNCTION 'CONVERSION_EXIT_EXBEL_OUTPUT'
  EXPORTING
    input =                      WA_FKKINVDOC_H_SHORT-EXBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINVDOC_H_SHORT-EXBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKINVDOC_H_SHORT-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKINVDOC_H_SHORT-VTREF.
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_FKKINVDOC_H_SHORT_STR, 
INVDOCNO TYPE STRING,
APPLK TYPE STRING,
INV_PROCESS TYPE STRING,
INV_TYPE TYPE STRING,
TECHDOCTYPE TYPE STRING,
TARGPROCESS TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
ABWVK TYPE STRING,
ABWBL TYPE STRING,
CRDATE TYPE STRING,
RECNUM TYPE STRING,
INVRUNNO TYPE STRING,
FIKEY TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
FAEDN TYPE STRING,
FAEDS TYPE STRING,
SKTPZ TYPE STRING,
TOTAL_CURR TYPE STRING,
TOTAL_AMT TYPE STRING,
INVOICED TYPE STRING,
SIMULATED TYPE STRING,
PRELIMINARY TYPE STRING,
PRLINV_STATUS TYPE STRING,
REVREASON TYPE STRING,
REVERSALDOC TYPE STRING,
REVERSEDDOC TYPE STRING,
CORRCAT TYPE STRING,
PRINTDATE TYPE STRING,
PRINTLOCK TYPE STRING,
DOCTYPE TYPE STRING,
EXBEL TYPE STRING,
BUKRS TYPE STRING,
BUPLA TYPE STRING,
VTREF TYPE STRING,
INVPERIOD TYPE STRING,
INVPERIOD_FROM TYPE STRING,
BOLLOTAX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKINVDOC_H_SHORT_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_FKKINVDOC_H_SHORT_STR-INVDOCNO sy-vline 
WA_FKKINVDOC_H_SHORT_STR-APPLK sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INV_PROCESS sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INV_TYPE sy-vline 
WA_FKKINVDOC_H_SHORT_STR-TECHDOCTYPE sy-vline 
WA_FKKINVDOC_H_SHORT_STR-TARGPROCESS sy-vline 
WA_FKKINVDOC_H_SHORT_STR-GPART sy-vline 
WA_FKKINVDOC_H_SHORT_STR-VKONT sy-vline 
WA_FKKINVDOC_H_SHORT_STR-ABWVK sy-vline 
WA_FKKINVDOC_H_SHORT_STR-ABWBL sy-vline 
WA_FKKINVDOC_H_SHORT_STR-CRDATE sy-vline 
WA_FKKINVDOC_H_SHORT_STR-RECNUM sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INVRUNNO sy-vline 
WA_FKKINVDOC_H_SHORT_STR-FIKEY sy-vline 
WA_FKKINVDOC_H_SHORT_STR-BUDAT sy-vline 
WA_FKKINVDOC_H_SHORT_STR-BLDAT sy-vline 
WA_FKKINVDOC_H_SHORT_STR-FAEDN sy-vline 
WA_FKKINVDOC_H_SHORT_STR-FAEDS sy-vline 
WA_FKKINVDOC_H_SHORT_STR-SKTPZ sy-vline 
WA_FKKINVDOC_H_SHORT_STR-TOTAL_CURR sy-vline 
WA_FKKINVDOC_H_SHORT_STR-TOTAL_AMT sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INVOICED sy-vline 
WA_FKKINVDOC_H_SHORT_STR-SIMULATED sy-vline 
WA_FKKINVDOC_H_SHORT_STR-PRELIMINARY sy-vline 
WA_FKKINVDOC_H_SHORT_STR-PRLINV_STATUS sy-vline 
WA_FKKINVDOC_H_SHORT_STR-REVREASON sy-vline 
WA_FKKINVDOC_H_SHORT_STR-REVERSALDOC sy-vline 
WA_FKKINVDOC_H_SHORT_STR-REVERSEDDOC sy-vline 
WA_FKKINVDOC_H_SHORT_STR-CORRCAT sy-vline 
WA_FKKINVDOC_H_SHORT_STR-PRINTDATE sy-vline 
WA_FKKINVDOC_H_SHORT_STR-PRINTLOCK sy-vline 
WA_FKKINVDOC_H_SHORT_STR-DOCTYPE sy-vline 
WA_FKKINVDOC_H_SHORT_STR-EXBEL sy-vline 
WA_FKKINVDOC_H_SHORT_STR-BUKRS sy-vline 
WA_FKKINVDOC_H_SHORT_STR-BUPLA sy-vline 
WA_FKKINVDOC_H_SHORT_STR-VTREF sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INVPERIOD sy-vline 
WA_FKKINVDOC_H_SHORT_STR-INVPERIOD_FROM sy-vline 
WA_FKKINVDOC_H_SHORT_STR-BOLLOTAX sy-vline      INTO ld_text SEPARATED BY SPACE.

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