ABAP Select data from SAP table CPVMPVLQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPVMPVLQ
*  INTO TABLE @DATA(IT_CPVMPVLQ2).
*--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_CPVMPVLQ INDEX 1 INTO DATA(WA_CPVMPVLQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPVMPVLQ>-MANDT = 1.
<CPVMPVLQ>-MEASUREMENTPTVOLDOCYEAR = 1.
<CPVMPVLQ>-MEASUREMENTPTVOLUMEDOC = 1.
<CPVMPVLQ>-MEASUREMENTPOINT = 1.
<CPVMPVLQ>-VOLUMETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPVMPVLQ-VOLUMECLASS, sy-vline,
  WA_CPVMPVLQ-TRANSPORTER, sy-vline,
  WA_CPVMPVLQ-TRANSPORTERREFERENCE, sy-vline,
  WA_CPVMPVLQ-MATERIAL, sy-vline,
  WA_CPVMPVLQ-ALLOCATIONFREQUENCY, sy-vline,
  WA_CPVMPVLQ-DELIVERYNETWORK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPVMPVLQ 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_CPVMPVLQ 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_CPVMPVLQ INTO WA_CPVMPVLQ.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field STANDARDDENSITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPVMPVLQ-STANDARDDENSITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPVMPVLQ-STANDARDDENSITYUNIT.
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_CPVMPVLQ_STR, 
MANDT TYPE STRING,
MEASUREMENTPTVOLDOCYEAR TYPE STRING,
MEASUREMENTPTVOLUMEDOC TYPE STRING,
MEASUREMENTPOINT TYPE STRING,
VOLUMETYPE TYPE STRING,
VOLUMECLASS TYPE STRING,
TRANSPORTER TYPE STRING,
TRANSPORTERREFERENCE TYPE STRING,
MATERIAL TYPE STRING,
ALLOCATIONFREQUENCY TYPE STRING,
DELIVERYNETWORK TYPE STRING,
PRACONTRACT TYPE STRING,
TICKETNUMBER TYPE STRING,
TICKETDATETIME TYPE STRING,
PRODUCTIONDATE TYPE STRING,
VOLUMEENTRYDATETIME TYPE STRING,
EFFECTIVEVALIDITYSTARTDATE TYPE STRING,
EFFECTIVEVALIDITYENDDATE TYPE STRING,
METERSTARTDATETIME TYPE STRING,
METERSTOPDATETIME TYPE STRING,
CONVERSIONGROUP TYPE STRING,
TANKBATTERYMEASUREMENTPT TYPE STRING,
VOLUMESOURCE TYPE STRING,
VOLUMECATEGORY TYPE STRING,
LOADOILDELIVERYNETWORK TYPE STRING,
LOADOILWELL TYPE STRING,
LOADOILWELLCOMPLETION TYPE STRING,
LOADOILMEASUREMENTPOINT TYPE STRING,
ORIGINATINGMEASUREMENTPT TYPE STRING,
DENSITYTYPE TYPE STRING,
INVENTORYDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
STANDARDVOLUNIT TYPE STRING,
ENERGYUNIT TYPE STRING,
HEATINGVALUNIT TYPE STRING,
STANDARDDENSITYUNIT TYPE STRING,
HEATINGVALUE TYPE STRING,
STANDARDDENSITY TYPE STRING,
STANDARDVOLUME TYPE STRING,
ENERGY TYPE STRING,
GASMOLARVOLUME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPVMPVLQ_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_CPVMPVLQ_STR-MANDT sy-vline 
WA_CPVMPVLQ_STR-MEASUREMENTPTVOLDOCYEAR sy-vline 
WA_CPVMPVLQ_STR-MEASUREMENTPTVOLUMEDOC sy-vline 
WA_CPVMPVLQ_STR-MEASUREMENTPOINT sy-vline 
WA_CPVMPVLQ_STR-VOLUMETYPE sy-vline 
WA_CPVMPVLQ_STR-VOLUMECLASS sy-vline 
WA_CPVMPVLQ_STR-TRANSPORTER sy-vline 
WA_CPVMPVLQ_STR-TRANSPORTERREFERENCE sy-vline 
WA_CPVMPVLQ_STR-MATERIAL sy-vline 
WA_CPVMPVLQ_STR-ALLOCATIONFREQUENCY sy-vline 
WA_CPVMPVLQ_STR-DELIVERYNETWORK sy-vline 
WA_CPVMPVLQ_STR-PRACONTRACT sy-vline 
WA_CPVMPVLQ_STR-TICKETNUMBER sy-vline 
WA_CPVMPVLQ_STR-TICKETDATETIME sy-vline 
WA_CPVMPVLQ_STR-PRODUCTIONDATE sy-vline 
WA_CPVMPVLQ_STR-VOLUMEENTRYDATETIME sy-vline 
WA_CPVMPVLQ_STR-EFFECTIVEVALIDITYSTARTDATE sy-vline 
WA_CPVMPVLQ_STR-EFFECTIVEVALIDITYENDDATE sy-vline 
WA_CPVMPVLQ_STR-METERSTARTDATETIME sy-vline 
WA_CPVMPVLQ_STR-METERSTOPDATETIME sy-vline 
WA_CPVMPVLQ_STR-CONVERSIONGROUP sy-vline 
WA_CPVMPVLQ_STR-TANKBATTERYMEASUREMENTPT sy-vline 
WA_CPVMPVLQ_STR-VOLUMESOURCE sy-vline 
WA_CPVMPVLQ_STR-VOLUMECATEGORY sy-vline 
WA_CPVMPVLQ_STR-LOADOILDELIVERYNETWORK sy-vline 
WA_CPVMPVLQ_STR-LOADOILWELL sy-vline 
WA_CPVMPVLQ_STR-LOADOILWELLCOMPLETION sy-vline 
WA_CPVMPVLQ_STR-LOADOILMEASUREMENTPOINT sy-vline 
WA_CPVMPVLQ_STR-ORIGINATINGMEASUREMENTPT sy-vline 
WA_CPVMPVLQ_STR-DENSITYTYPE sy-vline 
WA_CPVMPVLQ_STR-INVENTORYDATE sy-vline 
WA_CPVMPVLQ_STR-CREATEDBYUSER sy-vline 
WA_CPVMPVLQ_STR-CREATIONDATETIME sy-vline 
WA_CPVMPVLQ_STR-STANDARDVOLUNIT sy-vline 
WA_CPVMPVLQ_STR-ENERGYUNIT sy-vline 
WA_CPVMPVLQ_STR-HEATINGVALUNIT sy-vline 
WA_CPVMPVLQ_STR-STANDARDDENSITYUNIT sy-vline 
WA_CPVMPVLQ_STR-HEATINGVALUE sy-vline 
WA_CPVMPVLQ_STR-STANDARDDENSITY sy-vline 
WA_CPVMPVLQ_STR-STANDARDVOLUME sy-vline 
WA_CPVMPVLQ_STR-ENERGY sy-vline 
WA_CPVMPVLQ_STR-GASMOLARVOLUME sy-vline      INTO ld_text SEPARATED BY SPACE.

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