ABAP Select data from SAP table CPRAMPS 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 CPRAMPS 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 CPRAMPS. 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 CPRAMPS 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_CPRAMPS TYPE STANDARD TABLE OF CPRAMPS,
      WA_CPRAMPS TYPE CPRAMPS,
      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: <CPRAMPS> TYPE CPRAMPS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPRAMPS
*  INTO TABLE @DATA(IT_CPRAMPS2).
*--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_CPRAMPS INDEX 1 INTO DATA(WA_CPRAMPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPRAMPS>-MANDT = 1.
<CPRAMPS>-PURREQNALGNMTRUNUUID = 1.
<CPRAMPS>-PURREQNALIGNMENTID = 1.
<CPRAMPS>-PRODUCT = 1.
<CPRAMPS>-PURCHASEREQUISITION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPRAMPS-REQUESTEDQUANTITY, sy-vline,
  WA_CPRAMPS-PURCHASEREQUISITIONUNIT, sy-vline,
  WA_CPRAMPS-ALIGNEDPURORDITMQTYINBASEUOM, sy-vline,
  WA_CPRAMPS-ALIGNEDPURORDITEMBASEUNIT, sy-vline,
  WA_CPRAMPS-PURCHASINGDOCUMENT, sy-vline,
  WA_CPRAMPS-PURCHASEREQUISITIONITEMPLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPRAMPS 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_CPRAMPS 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_CPRAMPS INTO WA_CPRAMPS.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPRAMPS-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRAMPS-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASEORDERSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPRAMPS-PURCHASEORDERSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPRAMPS-PURCHASEORDERSUPPLIER.
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_CPRAMPS_STR, 
MANDT TYPE STRING,
PURREQNALGNMTRUNUUID TYPE STRING,
PURREQNALIGNMENTID TYPE STRING,
PRODUCT TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
PURCHASEREQUISITIONUNIT TYPE STRING,
ALIGNEDPURORDITMQTYINBASEUOM TYPE STRING,
ALIGNEDPURORDITEMBASEUNIT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASEREQUISITIONITEMPLANT TYPE STRING,
PURREQNITEMPLANTNAME TYPE STRING,
PURCHASEREQNITEMSEASONYEAR TYPE STRING,
PURCHASEREQNITEMSEASON TYPE STRING,
PURCHASEREQNITEMCOLLECTION TYPE STRING,
PURCHASEREQNITEMTHEME TYPE STRING,
PURCHASEREQNITEMSTOCKSEGMENT TYPE STRING,
PURREQNITEMPURCHASECONTRACT TYPE STRING,
PURCHASEREQITEMSUPPLIER TYPE STRING,
PURCHASEREQITEMSUPPLIERNAME TYPE STRING,
PROPOSEDPURCHASINGDOCUMENT TYPE STRING,
PURORDERITEMPLANT TYPE STRING,
PURORDITEMPLANTNAME TYPE STRING,
PURCHASEORDERITEMSEASONYEAR TYPE STRING,
PURCHASEORDERITEMSEASON TYPE STRING,
PURCHASEORDERITEMCOLLECTION TYPE STRING,
PURCHASEORDERITEMTHEME TYPE STRING,
PURCHASEORDERITEMSTOCKSEGMENT TYPE STRING,
PURORDERITEMPURCHASECONTRACT TYPE STRING,
PURCHASEORDERSUPPLIER TYPE STRING,
PURCHASEORDERSUPPLIERNAME TYPE STRING,
PURREQNCRSSEASONALGNMTNAME TYPE STRING,
PURREQNCRSPLANTALGNMTNAME TYPE STRING,
PURREQNHASCROSSSGMTALGNMTNAME TYPE STRING,
PURORDDIVERSIONSTSALGNMTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPRAMPS_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_CPRAMPS_STR-MANDT sy-vline 
WA_CPRAMPS_STR-PURREQNALGNMTRUNUUID sy-vline 
WA_CPRAMPS_STR-PURREQNALIGNMENTID sy-vline 
WA_CPRAMPS_STR-PRODUCT sy-vline 
WA_CPRAMPS_STR-PURCHASEREQUISITION sy-vline 
WA_CPRAMPS_STR-REQUESTEDQUANTITY sy-vline 
WA_CPRAMPS_STR-PURCHASEREQUISITIONUNIT sy-vline 
WA_CPRAMPS_STR-ALIGNEDPURORDITMQTYINBASEUOM sy-vline 
WA_CPRAMPS_STR-ALIGNEDPURORDITEMBASEUNIT sy-vline 
WA_CPRAMPS_STR-PURCHASINGDOCUMENT sy-vline 
WA_CPRAMPS_STR-PURCHASEREQUISITIONITEMPLANT sy-vline 
WA_CPRAMPS_STR-PURREQNITEMPLANTNAME sy-vline 
WA_CPRAMPS_STR-PURCHASEREQNITEMSEASONYEAR sy-vline 
WA_CPRAMPS_STR-PURCHASEREQNITEMSEASON sy-vline 
WA_CPRAMPS_STR-PURCHASEREQNITEMCOLLECTION sy-vline 
WA_CPRAMPS_STR-PURCHASEREQNITEMTHEME sy-vline 
WA_CPRAMPS_STR-PURCHASEREQNITEMSTOCKSEGMENT sy-vline 
WA_CPRAMPS_STR-PURREQNITEMPURCHASECONTRACT sy-vline 
WA_CPRAMPS_STR-PURCHASEREQITEMSUPPLIER sy-vline 
WA_CPRAMPS_STR-PURCHASEREQITEMSUPPLIERNAME sy-vline 
WA_CPRAMPS_STR-PROPOSEDPURCHASINGDOCUMENT sy-vline 
WA_CPRAMPS_STR-PURORDERITEMPLANT sy-vline 
WA_CPRAMPS_STR-PURORDITEMPLANTNAME sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERITEMSEASONYEAR sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERITEMSEASON sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERITEMCOLLECTION sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERITEMTHEME sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERITEMSTOCKSEGMENT sy-vline 
WA_CPRAMPS_STR-PURORDERITEMPURCHASECONTRACT sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERSUPPLIER sy-vline 
WA_CPRAMPS_STR-PURCHASEORDERSUPPLIERNAME sy-vline 
WA_CPRAMPS_STR-PURREQNCRSSEASONALGNMTNAME sy-vline 
WA_CPRAMPS_STR-PURREQNCRSPLANTALGNMTNAME sy-vline 
WA_CPRAMPS_STR-PURREQNHASCROSSSGMTALGNMTNAME sy-vline 
WA_CPRAMPS_STR-PURORDDIVERSIONSTSALGNMTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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