ABAP Select data from SAP table /NFM/TPROVHIS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /NFM/TPROVHIS 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 /NFM/TPROVHIS. 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 /NFM/TPROVHIS 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_/NFM/TPROVHIS TYPE STANDARD TABLE OF /NFM/TPROVHIS,
      WA_/NFM/TPROVHIS TYPE /NFM/TPROVHIS,
      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: </NFM/TPROVHIS> TYPE /NFM/TPROVHIS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /NFM/TPROVHIS
  INTO TABLE IT_/NFM/TPROVHIS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /NFM/TPROVHIS
*  INTO TABLE @DATA(IT_/NFM/TPROVHIS2).
*--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_/NFM/TPROVHIS INDEX 1 INTO DATA(WA_/NFM/TPROVHIS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/NFM/TPROVHIS ASSIGNING </NFM/TPROVHIS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</NFM/TPROVHIS>-MANDT = 1.
</NFM/TPROVHIS>-KAPPL = 1.
</NFM/TPROVHIS>-ORG = 1.
</NFM/TPROVHIS>-PARNR = 1.
</NFM/TPROVHIS>-NES = 1.

ENDLOOP.

LOOP AT IT_/NFM/TPROVHIS INTO WA_/NFM/TPROVHIS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/NFM/TPROVHIS-LFD, sy-vline,
  WA_/NFM/TPROVHIS-BLT, sy-vline,
  WA_/NFM/TPROVHIS-BELNR, sy-vline,
  WA_/NFM/TPROVHIS-POSNR, sy-vline,
  WA_/NFM/TPROVHIS-AUTYP, sy-vline,
  WA_/NFM/TPROVHIS-AUBEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/NFM/TPROVHIS 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_/NFM/TPROVHIS 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_/NFM/TPROVHIS INTO WA_/NFM/TPROVHIS.


*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_/NFM/TPROVHIS-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/TPROVHIS-BELNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/NFM/TPROVHIS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/TPROVHIS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/NFM/TPROVHIS-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/TPROVHIS-MEINS.
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_/NFM/TPROVHIS_STR, 
MANDT TYPE STRING,
KAPPL TYPE STRING,
ORG TYPE STRING,
PARNR TYPE STRING,
NES TYPE STRING,
LFD TYPE STRING,
BLT TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
AUTYP TYPE STRING,
AUBEL TYPE STRING,
AUPOS TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
SHKZG TYPE STRING,
BWART TYPE STRING,
SOBKZ TYPE STRING,
KUNNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/NFM/TPROVHIS_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_/NFM/TPROVHIS_STR-MANDT sy-vline 
WA_/NFM/TPROVHIS_STR-KAPPL sy-vline 
WA_/NFM/TPROVHIS_STR-ORG sy-vline 
WA_/NFM/TPROVHIS_STR-PARNR sy-vline 
WA_/NFM/TPROVHIS_STR-NES sy-vline 
WA_/NFM/TPROVHIS_STR-LFD sy-vline 
WA_/NFM/TPROVHIS_STR-BLT sy-vline 
WA_/NFM/TPROVHIS_STR-BELNR sy-vline 
WA_/NFM/TPROVHIS_STR-POSNR sy-vline 
WA_/NFM/TPROVHIS_STR-AUTYP sy-vline 
WA_/NFM/TPROVHIS_STR-AUBEL sy-vline 
WA_/NFM/TPROVHIS_STR-AUPOS sy-vline 
WA_/NFM/TPROVHIS_STR-MATNR sy-vline 
WA_/NFM/TPROVHIS_STR-WERKS sy-vline 
WA_/NFM/TPROVHIS_STR-LGORT sy-vline 
WA_/NFM/TPROVHIS_STR-SHKZG sy-vline 
WA_/NFM/TPROVHIS_STR-BWART sy-vline 
WA_/NFM/TPROVHIS_STR-SOBKZ sy-vline 
WA_/NFM/TPROVHIS_STR-KUNNR sy-vline 
WA_/NFM/TPROVHIS_STR-MENGE sy-vline 
WA_/NFM/TPROVHIS_STR-MEINS sy-vline 
WA_/NFM/TPROVHIS_STR-UNAME sy-vline 
WA_/NFM/TPROVHIS_STR-DATUM sy-vline 
WA_/NFM/TPROVHIS_STR-UZEIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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