ABAP Select data from SAP table CSERVCONTRANAQRY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSERVCONTRANAQRY
*  INTO TABLE @DATA(IT_CSERVCONTRANAQRY2).
*--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_CSERVCONTRANAQRY INDEX 1 INTO DATA(WA_CSERVCONTRANAQRY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSERVCONTRANAQRY>-MANDT = 1.
<CSERVCONTRANAQRY>-SERVICEOBJECTTYPE = 1.
<CSERVCONTRANAQRY>-SERVICECONTRACT = 1.
<CSERVCONTRANAQRY>-SERVICEDOCUMENT = 1.
<CSERVCONTRANAQRY>-SERVICEDOCUMENTDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSERVCONTRANAQRY-SERVICEDOCUMENTTYPE, sy-vline,
  WA_CSERVCONTRANAQRY-SERVICECONTRACTTYPE, sy-vline,
  WA_CSERVCONTRANAQRY-SERVICEDOCUMENTSTATUS, sy-vline,
  WA_CSERVCONTRANAQRY-TRANSACTIONCURRENCY, sy-vline,
  WA_CSERVCONTRANAQRY-SALESOFFICE, sy-vline,
  WA_CSERVCONTRANAQRY-SALESGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSERVCONTRANAQRY 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_CSERVCONTRANAQRY 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_CSERVCONTRANAQRY INTO WA_CSERVCONTRANAQRY.


*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_CSERVCONTRANAQRY-SERVICECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSERVCONTRANAQRY-SERVICECONTRACT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RESPONSIBLEEMPLOYEE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSERVCONTRANAQRY-RESPONSIBLEEMPLOYEE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSERVCONTRANAQRY-RESPONSIBLEEMPLOYEE.
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_CSERVCONTRANAQRY_STR, 
MANDT TYPE STRING,
SERVICEOBJECTTYPE TYPE STRING,
SERVICECONTRACT TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEDOCUMENTDESCRIPTION TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
SERVICECONTRACTTYPE TYPE STRING,
SERVICEDOCUMENTSTATUS TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
RESPONSIBLEEMPLOYEE TYPE STRING,
CURRENCY TYPE STRING,
SERVICEDOCNETAMOUNT TYPE STRING,
NMBROFEXPIREDSRVCCONTRACTS TYPE STRING,
NMBROFEXPIREDSRVCCONTRCURWEEK TYPE STRING,
NMBROFEXPIREDSRVCCONTRNEXTWEEK TYPE STRING,
NMBROFEXPIREDSRVCCONTRIN2WEEKS TYPE STRING,
ISEXPIRED TYPE STRING,
NMBROFSERVICECONTRACTS TYPE STRING,
EXPRGSRVCCONTRNETAMOUNT TYPE STRING,
ISSUE TYPE STRING,
ISSUENAME TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSERVCONTRANAQRY_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_CSERVCONTRANAQRY_STR-MANDT sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEOBJECTTYPE sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICECONTRACT sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEDOCUMENT sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEDOCUMENTDESCRIPTION sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICECONTRACTTYPE sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEDOCUMENTSTATUS sy-vline 
WA_CSERVCONTRANAQRY_STR-TRANSACTIONCURRENCY sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESOFFICE sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESGROUP sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESORGANIZATION sy-vline 
WA_CSERVCONTRANAQRY_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CSERVCONTRANAQRY_STR-DIVISION sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEORGANIZATION sy-vline 
WA_CSERVCONTRANAQRY_STR-RESPONSIBLEEMPLOYEE sy-vline 
WA_CSERVCONTRANAQRY_STR-CURRENCY sy-vline 
WA_CSERVCONTRANAQRY_STR-SERVICEDOCNETAMOUNT sy-vline 
WA_CSERVCONTRANAQRY_STR-NMBROFEXPIREDSRVCCONTRACTS sy-vline 
WA_CSERVCONTRANAQRY_STR-NMBROFEXPIREDSRVCCONTRCURWEEK sy-vline 
WA_CSERVCONTRANAQRY_STR-NMBROFEXPIREDSRVCCONTRNEXTWEEK sy-vline 
WA_CSERVCONTRANAQRY_STR-NMBROFEXPIREDSRVCCONTRIN2WEEKS sy-vline 
WA_CSERVCONTRANAQRY_STR-ISEXPIRED sy-vline 
WA_CSERVCONTRANAQRY_STR-NMBROFSERVICECONTRACTS sy-vline 
WA_CSERVCONTRANAQRY_STR-EXPRGSRVCCONTRNETAMOUNT sy-vline 
WA_CSERVCONTRANAQRY_STR-ISSUE sy-vline 
WA_CSERVCONTRANAQRY_STR-ISSUENAME sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESOFFICEORGUNITID sy-vline 
WA_CSERVCONTRANAQRY_STR-SALESGROUPORGUNITID sy-vline      INTO ld_text SEPARATED BY SPACE.

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