ABAP Select data from SAP table COD_UTILITIES_MR_VH_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COD_UTILITIES_MR_VH_S
*  INTO TABLE @DATA(IT_COD_UTILITIES_MR_VH_S2).
*--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_COD_UTILITIES_MR_VH_S INDEX 1 INTO DATA(WA_COD_UTILITIES_MR_VH_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COD_UTILITIES_MR_VH_S>-ABLBELNR = 1.
<COD_UTILITIES_MR_VH_S>-GERNR = 1.
<COD_UTILITIES_MR_VH_S>-EQUNR = 1.
<COD_UTILITIES_MR_VH_S>-ZWNUMMER = 1.
<COD_UTILITIES_MR_VH_S>-ADAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COD_UTILITIES_MR_VH_S-ISTABLART, sy-vline,
  WA_COD_UTILITIES_MR_VH_S-ABLESTYP, sy-vline,
  WA_COD_UTILITIES_MR_VH_S-V_ZWSTAND, sy-vline,
  WA_COD_UTILITIES_MR_VH_S-V_ZWSTNDAB, sy-vline,
  WA_COD_UTILITIES_MR_VH_S-ANLAGE, sy-vline,
  WA_COD_UTILITIES_MR_VH_S-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COD_UTILITIES_MR_VH_S 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_COD_UTILITIES_MR_VH_S 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_COD_UTILITIES_MR_VH_S INTO WA_COD_UTILITIES_MR_VH_S.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COD_UTILITIES_MR_VH_S-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COD_UTILITIES_MR_VH_S-GPART.
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_COD_UTILITIES_MR_VH_S_STR, 
ABLBELNR TYPE STRING,
GERNR TYPE STRING,
EQUNR TYPE STRING,
ZWNUMMER TYPE STRING,
ADAT TYPE STRING,
ISTABLART TYPE STRING,
ABLESTYP TYPE STRING,
V_ZWSTAND TYPE STRING,
V_ZWSTNDAB TYPE STRING,
ANLAGE TYPE STRING,
MATNR TYPE STRING,
ABLHINW TYPE STRING,
TARIFTYP TYPE STRING,
GPART TYPE STRING,
SPARTE TYPE STRING,
VTEXT TYPE STRING,
ACTIVE TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
EXPECTED_CONSUMPTION TYPE STRING,
PREVIOUS_MR TYPE STRING,
OPCODE TYPE STRING,
OPCODETXT TYPE STRING,
TTYPBEZ TYPE STRING,
ABLESGR TYPE STRING,
AMI_METER TYPE STRING,
MANUF_SERIAL_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COD_UTILITIES_MR_VH_S_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_COD_UTILITIES_MR_VH_S_STR-ABLBELNR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-GERNR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-EQUNR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ZWNUMMER sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ADAT sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ISTABLART sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ABLESTYP sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-V_ZWSTAND sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-V_ZWSTNDAB sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ANLAGE sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-MATNR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ABLHINW sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-TARIFTYP sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-GPART sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-SPARTE sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-VTEXT sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ACTIVE sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-UNIT_OF_MEASURE sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-EXPECTED_CONSUMPTION sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-PREVIOUS_MR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-OPCODE sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-OPCODETXT sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-TTYPBEZ sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-ABLESGR sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-AMI_METER sy-vline 
WA_COD_UTILITIES_MR_VH_S_STR-MANUF_SERIAL_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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