ABAP Select data from SAP table CRMS4S_MIG_SERVICE_CONTRACT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4S_MIG_SERVICE_CONTRACT 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 CRMS4S_MIG_SERVICE_CONTRACT. 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 CRMS4S_MIG_SERVICE_CONTRACT 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_CRMS4S_MIG_SERVICE_CONTRACT TYPE STANDARD TABLE OF CRMS4S_MIG_SERVICE_CONTRACT,
      WA_CRMS4S_MIG_SERVICE_CONTRACT TYPE CRMS4S_MIG_SERVICE_CONTRACT,
      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: <CRMS4S_MIG_SERVICE_CONTRACT> TYPE CRMS4S_MIG_SERVICE_CONTRACT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4S_MIG_SERVICE_CONTRACT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4S_MIG_SERVICE_CONTRACT
  INTO TABLE IT_CRMS4S_MIG_SERVICE_CONTRACT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4S_MIG_SERVICE_CONTRACT
*  INTO TABLE @DATA(IT_CRMS4S_MIG_SERVICE_CONTRACT2).
*--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_CRMS4S_MIG_SERVICE_CONTRACT INDEX 1 INTO DATA(WA_CRMS4S_MIG_SERVICE_CONTRACT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4S_MIG_SERVICE_CONTRACT ASSIGNING <CRMS4S_MIG_SERVICE_CONTRACT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4S_MIG_SERVICE_CONTRACT>-SERVICECONTRACT = 1.
<CRMS4S_MIG_SERVICE_CONTRACT>-SERVICECONTRACTTYPE = 1.
<CRMS4S_MIG_SERVICE_CONTRACT>-SERVICECONTRACTDESCRIPTION = 1.
<CRMS4S_MIG_SERVICE_CONTRACT>-LANGUAGE = 1.
<CRMS4S_MIG_SERVICE_CONTRACT>-SERVICECONTRACTSTARTDATETIME = 1.

ENDLOOP.

LOOP AT IT_CRMS4S_MIG_SERVICE_CONTRACT INTO WA_CRMS4S_MIG_SERVICE_CONTRACT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4S_MIG_SERVICE_CONTRACT-SERVICECONTRACTENDDATETIME, sy-vline,
  WA_CRMS4S_MIG_SERVICE_CONTRACT-PURCHASEORDERBYCUSTOMER, sy-vline,
  WA_CRMS4S_MIG_SERVICE_CONTRACT-CUSTOMERPURCHASEORDERDATE, sy-vline,
  WA_CRMS4S_MIG_SERVICE_CONTRACT-SALESORGANIZATION, sy-vline,
  WA_CRMS4S_MIG_SERVICE_CONTRACT-DISTRIBUTIONCHANNEL, sy-vline,
  WA_CRMS4S_MIG_SERVICE_CONTRACT-DIVISION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4S_MIG_SERVICE_CONTRACT 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_CRMS4S_MIG_SERVICE_CONTRACT 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_CRMS4S_MIG_SERVICE_CONTRACT INTO WA_CRMS4S_MIG_SERVICE_CONTRACT.


*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 SERVICECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-SERVICECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-SERVICECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-SOLDTOPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHIPTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-SHIPTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-SHIPTOPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-BILLTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-BILLTOPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PAYERPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-PAYERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-PAYERPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTACTPERSON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-CONTACTPERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-CONTACTPERSON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFERENCESERVICECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-REFERENCESERVICECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-REFERENCESERVICECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERSONRESPONSIBLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4S_MIG_SERVICE_CONTRACT-PERSONRESPONSIBLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4S_MIG_SERVICE_CONTRACT-PERSONRESPONSIBLE.
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_CRMS4S_MIG_SERVICE_CONTRACT_STR, 
SERVICECONTRACT TYPE STRING,
SERVICECONTRACTTYPE TYPE STRING,
SERVICECONTRACTDESCRIPTION TYPE STRING,
LANGUAGE TYPE STRING,
SERVICECONTRACTSTARTDATETIME TYPE STRING,
SERVICECONTRACTENDDATETIME TYPE STRING,
PURCHASEORDERBYCUSTOMER TYPE STRING,
CUSTOMERPURCHASEORDERDATE TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
SOLDTOPARTY TYPE STRING,
SHIPTOPARTY TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
CONTACTPERSON TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONCURRENCYISOCODE TYPE STRING,
REFERENCESERVICECONTRACT TYPE STRING,
PERSONRESPONSIBLE TYPE STRING,
SERV_H_DUMMY_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4S_MIG_SERVICE_CONTRACT_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_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERVICECONTRACT sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERVICECONTRACTTYPE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERVICECONTRACTDESCRIPTION sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-LANGUAGE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERVICECONTRACTSTARTDATETIME sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERVICECONTRACTENDDATETIME sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-PURCHASEORDERBYCUSTOMER sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-CUSTOMERPURCHASEORDERDATE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SALESORGANIZATION sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-DIVISION sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SALESOFFICE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SALESGROUP sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SOLDTOPARTY sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SHIPTOPARTY sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-BILLTOPARTY sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-PAYERPARTY sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-CONTACTPERSON sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-TRANSACTIONCURRENCY sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-TRANSACTIONCURRENCYISOCODE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-REFERENCESERVICECONTRACT sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-PERSONRESPONSIBLE sy-vline 
WA_CRMS4S_MIG_SERVICE_CONTRACT_STR-SERV_H_DUMMY_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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