ABAP Select data from SAP table CRSHGANTTRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHGANTTRES
*  INTO TABLE @DATA(IT_CRSHGANTTRES2).
*--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_CRSHGANTTRES INDEX 1 INTO DATA(WA_CRSHGANTTRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHGANTTRES>-MANDT = 1.
<CRSHGANTTRES>-EMPLOYMENTINTERNALID = 1.
<CRSHGANTTRES>-STARTDATE = 1.
<CRSHGANTTRES>-ENDDATE = 1.
<CRSHGANTTRES>-FULLNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHGANTTRES-EMPLOYEEIMAGEURL, sy-vline,
  WA_CRSHGANTTRES-JOBNAME, sy-vline,
  WA_CRSHGANTTRES-ENGAGEMENTPROJECTSERVICEORG, sy-vline,
  WA_CRSHGANTTRES-ENGAGEMENTPROJECT, sy-vline,
  WA_CRSHGANTTRES-EMPLOYEEROWID, sy-vline,
  WA_CRSHGANTTRES-EMPLOYEEPARENTROWID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHGANTTRES 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_CRSHGANTTRES 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_CRSHGANTTRES INTO WA_CRSHGANTTRES.


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

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

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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRSHGANTTRES-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHGANTTRES-UNITOFMEASURE.
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_CRSHGANTTRES_STR, 
MANDT TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
FULLNAME TYPE STRING,
EMPLOYEEIMAGEURL TYPE STRING,
JOBNAME TYPE STRING,
ENGAGEMENTPROJECTSERVICEORG TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
EMPLOYEEROWID TYPE STRING,
EMPLOYEEPARENTROWID TYPE STRING,
EMPLOYEEROWLEVEL TYPE STRING,
EMPLOYEEROWTYPE TYPE STRING,
EMPLOYEEISEXPANDED TYPE STRING,
PROJASSIGNMENTSTARTDATE TYPE STRING,
PROJASSIGNMENTENDDATE TYPE STRING,
GANTTASSIGNMENTCOUNT TYPE STRING,
GANTTASSIGNMENTTOTALDURATION TYPE STRING,
COSTCENTER TYPE STRING,
COSTCENTERNAME TYPE STRING,
SERVICECOSTLEVEL TYPE STRING,
BUSINESSPARTNERROLE TYPE STRING,
BUSINESSPARTNERROLENAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
ORGANIZATIONALUNITNAME TYPE STRING,
PERSON TYPE STRING,
PERSONEXTERNALID TYPE STRING,
COUNTRY TYPE STRING,
ENGAGEMENTPROJECTSTAGE TYPE STRING,
CUSTOMERFULLNAME TYPE STRING,
ROLE TYPE STRING,
WORKPACKAGENAME TYPE STRING,
ENGAGEMENTPROJECTSTAGETEXT TYPE STRING,
CALENDARWEEKSTARTDAY TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
UNITOFMEASURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHGANTTRES_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_CRSHGANTTRES_STR-MANDT sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYMENTINTERNALID sy-vline 
WA_CRSHGANTTRES_STR-STARTDATE sy-vline 
WA_CRSHGANTTRES_STR-ENDDATE sy-vline 
WA_CRSHGANTTRES_STR-FULLNAME sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEIMAGEURL sy-vline 
WA_CRSHGANTTRES_STR-JOBNAME sy-vline 
WA_CRSHGANTTRES_STR-ENGAGEMENTPROJECTSERVICEORG sy-vline 
WA_CRSHGANTTRES_STR-ENGAGEMENTPROJECT sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEROWID sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEPARENTROWID sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEROWLEVEL sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEROWTYPE sy-vline 
WA_CRSHGANTTRES_STR-EMPLOYEEISEXPANDED sy-vline 
WA_CRSHGANTTRES_STR-PROJASSIGNMENTSTARTDATE sy-vline 
WA_CRSHGANTTRES_STR-PROJASSIGNMENTENDDATE sy-vline 
WA_CRSHGANTTRES_STR-GANTTASSIGNMENTCOUNT sy-vline 
WA_CRSHGANTTRES_STR-GANTTASSIGNMENTTOTALDURATION sy-vline 
WA_CRSHGANTTRES_STR-COSTCENTER sy-vline 
WA_CRSHGANTTRES_STR-COSTCENTERNAME sy-vline 
WA_CRSHGANTTRES_STR-SERVICECOSTLEVEL sy-vline 
WA_CRSHGANTTRES_STR-BUSINESSPARTNERROLE sy-vline 
WA_CRSHGANTTRES_STR-BUSINESSPARTNERROLENAME sy-vline 
WA_CRSHGANTTRES_STR-COMPANYCODE sy-vline 
WA_CRSHGANTTRES_STR-COMPANYCODENAME sy-vline 
WA_CRSHGANTTRES_STR-ORGANIZATIONALUNITNAME sy-vline 
WA_CRSHGANTTRES_STR-PERSON sy-vline 
WA_CRSHGANTTRES_STR-PERSONEXTERNALID sy-vline 
WA_CRSHGANTTRES_STR-COUNTRY sy-vline 
WA_CRSHGANTTRES_STR-ENGAGEMENTPROJECTSTAGE sy-vline 
WA_CRSHGANTTRES_STR-CUSTOMERFULLNAME sy-vline 
WA_CRSHGANTTRES_STR-ROLE sy-vline 
WA_CRSHGANTTRES_STR-WORKPACKAGENAME sy-vline 
WA_CRSHGANTTRES_STR-ENGAGEMENTPROJECTSTAGETEXT sy-vline 
WA_CRSHGANTTRES_STR-CALENDARWEEKSTARTDAY sy-vline 
WA_CRSHGANTTRES_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CRSHGANTTRES_STR-AUTHORIZATIONGROUP sy-vline 
WA_CRSHGANTTRES_STR-UNITOFMEASURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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