ABAP Select data from SAP table FIEUD_MMINV_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIEUD_MMINV_H
*  INTO TABLE @DATA(IT_FIEUD_MMINV_H2).
*--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_FIEUD_MMINV_H INDEX 1 INTO DATA(WA_FIEUD_MMINV_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIEUD_MMINV_H>-MANDT = 1.
<FIEUD_MMINV_H>-BUKRS = 1.
<FIEUD_MMINV_H>-BELNR = 1.
<FIEUD_MMINV_H>-GJAHR = 1.
<FIEUD_MMINV_H>-BLDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIEUD_MMINV_H-BLART, sy-vline,
  WA_FIEUD_MMINV_H-BUDAT, sy-vline,
  WA_FIEUD_MMINV_H-USNAM, sy-vline,
  WA_FIEUD_MMINV_H-VGART, sy-vline,
  WA_FIEUD_MMINV_H-SYSID, sy-vline,
  WA_FIEUD_MMINV_H-INVOICENO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIEUD_MMINV_H 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_FIEUD_MMINV_H 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_FIEUD_MMINV_H INTO WA_FIEUD_MMINV_H.


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

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

*Conversion exit GJAHR, internal->external for field ACCPERIO
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIEUD_MMINV_H-ACCPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIEUD_MMINV_H-ACCPERIO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field GS_STREETCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIEUD_MMINV_H-GS_STREETCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIEUD_MMINV_H-GS_STREETCODE.
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_FIEUD_MMINV_H_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLDAT TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
USNAM TYPE STRING,
VGART TYPE STRING,
SYSID TYPE STRING,
INVOICENO TYPE STRING,
TRANSID TYPE STRING,
PERIO TYPE STRING,
ACCPERIO TYPE STRING,
HKONT TYPE STRING,
PWLIF TYPE STRING,
NAME1 TYPE STRING,
COMP_PERS TYPE STRING,
GS_STREET TYPE STRING,
GS_STREETCODE TYPE STRING,
GS_BUILDING TYPE STRING,
GS_CITY1 TYPE STRING,
GS_POST_CODE1 TYPE STRING,
GS_REGION TYPE STRING,
GS_COUNTRY TYPE STRING,
ZTERM TYPE STRING,
PAYTRMDESC TYPE STRING,
ACCBUDAT TYPE STRING,
ZLSCH TYPE STRING,
TEXT1 TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
GROSSAMT TYPE STRING,
NETAMT TYPE STRING,
SUPPLIER_ID TYPE STRING,
ONETIME_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIEUD_MMINV_H_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_FIEUD_MMINV_H_STR-MANDT sy-vline 
WA_FIEUD_MMINV_H_STR-BUKRS sy-vline 
WA_FIEUD_MMINV_H_STR-BELNR sy-vline 
WA_FIEUD_MMINV_H_STR-GJAHR sy-vline 
WA_FIEUD_MMINV_H_STR-BLDAT sy-vline 
WA_FIEUD_MMINV_H_STR-BLART sy-vline 
WA_FIEUD_MMINV_H_STR-BUDAT sy-vline 
WA_FIEUD_MMINV_H_STR-USNAM sy-vline 
WA_FIEUD_MMINV_H_STR-VGART sy-vline 
WA_FIEUD_MMINV_H_STR-SYSID sy-vline 
WA_FIEUD_MMINV_H_STR-INVOICENO sy-vline 
WA_FIEUD_MMINV_H_STR-TRANSID sy-vline 
WA_FIEUD_MMINV_H_STR-PERIO sy-vline 
WA_FIEUD_MMINV_H_STR-ACCPERIO sy-vline 
WA_FIEUD_MMINV_H_STR-HKONT sy-vline 
WA_FIEUD_MMINV_H_STR-PWLIF sy-vline 
WA_FIEUD_MMINV_H_STR-NAME1 sy-vline 
WA_FIEUD_MMINV_H_STR-COMP_PERS sy-vline 
WA_FIEUD_MMINV_H_STR-GS_STREET sy-vline 
WA_FIEUD_MMINV_H_STR-GS_STREETCODE sy-vline 
WA_FIEUD_MMINV_H_STR-GS_BUILDING sy-vline 
WA_FIEUD_MMINV_H_STR-GS_CITY1 sy-vline 
WA_FIEUD_MMINV_H_STR-GS_POST_CODE1 sy-vline 
WA_FIEUD_MMINV_H_STR-GS_REGION sy-vline 
WA_FIEUD_MMINV_H_STR-GS_COUNTRY sy-vline 
WA_FIEUD_MMINV_H_STR-ZTERM sy-vline 
WA_FIEUD_MMINV_H_STR-PAYTRMDESC sy-vline 
WA_FIEUD_MMINV_H_STR-ACCBUDAT sy-vline 
WA_FIEUD_MMINV_H_STR-ZLSCH sy-vline 
WA_FIEUD_MMINV_H_STR-TEXT1 sy-vline 
WA_FIEUD_MMINV_H_STR-WAERS sy-vline 
WA_FIEUD_MMINV_H_STR-HWAER sy-vline 
WA_FIEUD_MMINV_H_STR-GROSSAMT sy-vline 
WA_FIEUD_MMINV_H_STR-NETAMT sy-vline 
WA_FIEUD_MMINV_H_STR-SUPPLIER_ID sy-vline 
WA_FIEUD_MMINV_H_STR-ONETIME_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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