ABAP Select data from SAP table IPVMEASPTVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPVMEASPTVH
*  INTO TABLE @DATA(IT_IPVMEASPTVH2).
*--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_IPVMEASPTVH INDEX 1 INTO DATA(WA_IPVMEASPTVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPVMEASPTVH>-MANDT = 1.
<IPVMEASPTVH>-MEASUREMENTPOINT = 1.
<IPVMEASPTVH>-MEASUREMENTPTNAME = 1.
<IPVMEASPTVH>-MEASUREMENTPTTYPE = 1.
<IPVMEASPTVH>-MEASUREMENTPTMETERCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPVMEASPTVH-COUNTRY, sy-vline,
  WA_IPVMEASPTVH-PRIMARYGEOGRLLOCATION, sy-vline,
  WA_IPVMEASPTVH-SECONDARYGEOGRLLOCATION, sy-vline,
  WA_IPVMEASPTVH-MEASUREMENTPTLONGITUDEDRCTN, sy-vline,
  WA_IPVMEASPTVH-MEASUREMENTPTHIER, sy-vline,
  WA_IPVMEASPTVH-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPVMEASPTVH 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_IPVMEASPTVH 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_IPVMEASPTVH INTO WA_IPVMEASPTVH.


*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 MEASUREMENTPOINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPVMEASPTVH-MEASUREMENTPOINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPVMEASPTVH-MEASUREMENTPOINT.
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_IPVMEASPTVH_STR, 
MANDT TYPE STRING,
MEASUREMENTPOINT TYPE STRING,
MEASUREMENTPTNAME TYPE STRING,
MEASUREMENTPTTYPE TYPE STRING,
MEASUREMENTPTMETERCLASS TYPE STRING,
COUNTRY TYPE STRING,
PRIMARYGEOGRLLOCATION TYPE STRING,
SECONDARYGEOGRLLOCATION TYPE STRING,
MEASUREMENTPTLONGITUDEDRCTN TYPE STRING,
MEASUREMENTPTHIER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPVMEASPTVH_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_IPVMEASPTVH_STR-MANDT sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPOINT sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPTNAME sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPTTYPE sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPTMETERCLASS sy-vline 
WA_IPVMEASPTVH_STR-COUNTRY sy-vline 
WA_IPVMEASPTVH_STR-PRIMARYGEOGRLLOCATION sy-vline 
WA_IPVMEASPTVH_STR-SECONDARYGEOGRLLOCATION sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPTLONGITUDEDRCTN sy-vline 
WA_IPVMEASPTVH_STR-MEASUREMENTPTHIER sy-vline 
WA_IPVMEASPTVH_STR-CREATEDBYUSER sy-vline 
WA_IPVMEASPTVH_STR-CREATIONDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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