ABAP Select data from SAP table IPVCAVOLPRIWC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IPVCAVOLPRIWC 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 IPVCAVOLPRIWC. 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 IPVCAVOLPRIWC 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_IPVCAVOLPRIWC TYPE STANDARD TABLE OF IPVCAVOLPRIWC,
      WA_IPVCAVOLPRIWC TYPE IPVCAVOLPRIWC,
      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: <IPVCAVOLPRIWC> TYPE IPVCAVOLPRIWC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPVCAVOLPRIWC
*  INTO TABLE @DATA(IT_IPVCAVOLPRIWC2).
*--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_IPVCAVOLPRIWC INDEX 1 INTO DATA(WA_IPVCAVOLPRIWC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPVCAVOLPRIWC>-MANDT = 1.
<IPVCAVOLPRIWC>-MATERIAL = 1.
<IPVCAVOLPRIWC>-PRACONTRACT = 1.
<IPVCAVOLPRIWC>-DELIVERYNETWORK = 1.
<IPVCAVOLPRIWC>-WELL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPVCAVOLPRIWC-WELLCOMPLETION, sy-vline,
  WA_IPVCAVOLPRIWC-OWNERINTERESTTYPE, sy-vline,
  WA_IPVCAVOLPRIWC-PRAOWNER, sy-vline,
  WA_IPVCAVOLPRIWC-ORIGINATINGMEASUREMENTPT, sy-vline,
  WA_IPVCAVOLPRIWC-OWNERINTERESTSEQUENCE, sy-vline,
  WA_IPVCAVOLPRIWC-SALESDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPVCAVOLPRIWC 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_IPVCAVOLPRIWC 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_IPVCAVOLPRIWC INTO WA_IPVCAVOLPRIWC.


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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field VOLUMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPVCAVOLPRIWC-VOLUMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPVCAVOLPRIWC-VOLUMEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field HEATINGVALUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPVCAVOLPRIWC-HEATINGVALUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPVCAVOLPRIWC-HEATINGVALUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ENERGYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPVCAVOLPRIWC-ENERGYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPVCAVOLPRIWC-ENERGYUNIT.
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_IPVCAVOLPRIWC_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PRACONTRACT TYPE STRING,
DELIVERYNETWORK TYPE STRING,
WELL TYPE STRING,
WELLCOMPLETION TYPE STRING,
OWNERINTERESTTYPE TYPE STRING,
PRAOWNER TYPE STRING,
ORIGINATINGMEASUREMENTPT TYPE STRING,
OWNERINTERESTSEQUENCE TYPE STRING,
SALESDATE TYPE STRING,
TRANSPORTER TYPE STRING,
ORIGINTRANSACTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
VOLUMEUNIT TYPE STRING,
HEATINGVALUNIT TYPE STRING,
ENERGYUNIT TYPE STRING,
WETGASOVERRIDEPCT TYPE STRING,
ACTUALVOLUME TYPE STRING,
HEATINGVALUE TYPE STRING,
ACTUALENERGY TYPE STRING,
ENTITLEDVOLUME TYPE STRING,
ENTITLEDENERGY TYPE STRING,
ADJUSTEDENTITLEDVOL TYPE STRING,
ADJUSTEDENTITLEDENGY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPVCAVOLPRIWC_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_IPVCAVOLPRIWC_STR-MANDT sy-vline 
WA_IPVCAVOLPRIWC_STR-MATERIAL sy-vline 
WA_IPVCAVOLPRIWC_STR-PRACONTRACT sy-vline 
WA_IPVCAVOLPRIWC_STR-DELIVERYNETWORK sy-vline 
WA_IPVCAVOLPRIWC_STR-WELL sy-vline 
WA_IPVCAVOLPRIWC_STR-WELLCOMPLETION sy-vline 
WA_IPVCAVOLPRIWC_STR-OWNERINTERESTTYPE sy-vline 
WA_IPVCAVOLPRIWC_STR-PRAOWNER sy-vline 
WA_IPVCAVOLPRIWC_STR-ORIGINATINGMEASUREMENTPT sy-vline 
WA_IPVCAVOLPRIWC_STR-OWNERINTERESTSEQUENCE sy-vline 
WA_IPVCAVOLPRIWC_STR-SALESDATE sy-vline 
WA_IPVCAVOLPRIWC_STR-TRANSPORTER sy-vline 
WA_IPVCAVOLPRIWC_STR-ORIGINTRANSACTION sy-vline 
WA_IPVCAVOLPRIWC_STR-CREATEDBYUSER sy-vline 
WA_IPVCAVOLPRIWC_STR-CREATIONDATETIME sy-vline 
WA_IPVCAVOLPRIWC_STR-VOLUMEUNIT sy-vline 
WA_IPVCAVOLPRIWC_STR-HEATINGVALUNIT sy-vline 
WA_IPVCAVOLPRIWC_STR-ENERGYUNIT sy-vline 
WA_IPVCAVOLPRIWC_STR-WETGASOVERRIDEPCT sy-vline 
WA_IPVCAVOLPRIWC_STR-ACTUALVOLUME sy-vline 
WA_IPVCAVOLPRIWC_STR-HEATINGVALUE sy-vline 
WA_IPVCAVOLPRIWC_STR-ACTUALENERGY sy-vline 
WA_IPVCAVOLPRIWC_STR-ENTITLEDVOLUME sy-vline 
WA_IPVCAVOLPRIWC_STR-ENTITLEDENERGY sy-vline 
WA_IPVCAVOLPRIWC_STR-ADJUSTEDENTITLEDVOL sy-vline 
WA_IPVCAVOLPRIWC_STR-ADJUSTEDENTITLEDENGY sy-vline      INTO ld_text SEPARATED BY SPACE.

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