ABAP Select data from SAP table CRSHTBPROJASGN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHTBPROJASGN
*  INTO TABLE @DATA(IT_CRSHTBPROJASGN2).
*--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_CRSHTBPROJASGN INDEX 1 INTO DATA(WA_CRSHTBPROJASGN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHTBPROJASGN>-MANDT = 1.
<CRSHTBPROJASGN>-PROJASSIGNMENTUUID = 1.
<CRSHTBPROJASGN>-EMPLOYMENTINTERNALID = 1.
<CRSHTBPROJASGN>-RESOURCEDEMANDUUID = 1.
<CRSHTBPROJASGN>-ENGAGEMENTPROJECTUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHTBPROJASGN-COMPANYCODE, sy-vline,
  WA_CRSHTBPROJASGN-COSTCENTER, sy-vline,
  WA_CRSHTBPROJASGN-FULLNAME, sy-vline,
  WA_CRSHTBPROJASGN-WORKPACKAGENAME, sy-vline,
  WA_CRSHTBPROJASGN-ENGAGEMENTPROJECTSTAGE, sy-vline,
  WA_CRSHTBPROJASGN-PROJASSIGNMENTSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHTBPROJASGN 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_CRSHTBPROJASGN 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_CRSHTBPROJASGN INTO WA_CRSHTBPROJASGN.


*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_CRSHTBPROJASGN-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHTBPROJASGN-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PROJASSIGNMENTDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRSHTBPROJASGN-PROJASSIGNMENTDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHTBPROJASGN-PROJASSIGNMENTDURATIONUNIT.
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_CRSHTBPROJASGN_STR, 
MANDT TYPE STRING,
PROJASSIGNMENTUUID TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
ENGAGEMENTPROJECTUUID TYPE STRING,
COMPANYCODE TYPE STRING,
COSTCENTER TYPE STRING,
FULLNAME TYPE STRING,
WORKPACKAGENAME TYPE STRING,
ENGAGEMENTPROJECTSTAGE TYPE STRING,
PROJASSIGNMENTSTARTDATE TYPE STRING,
PROJASSIGNMENTENDDATE TYPE STRING,
PROJASSIGNMENTLIFECYCLE TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
EMPLOYEEROWID TYPE STRING,
EMPLOYEEPARENTROWID TYPE STRING,
EMPLOYEEROWLEVEL TYPE STRING,
EMPLOYEEROWTYPE TYPE STRING,
EMPLOYEEISEXPANDED TYPE STRING,
RSHASSIGNMENTDRAFTUUID TYPE STRING,
PROJASSIGNMENTDURATIONUNIT TYPE STRING,
JOBNAME TYPE STRING,
RESISSTAFFEDFORSELREQUEST TYPE STRING,
EMPLOYEEIMAGEURL TYPE STRING,
ISEDITABLE TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBUSPRPSCMPLTDCUSTOMER TYPE STRING,
CUSTOMERAUTHZNGRP TYPE STRING,
ISBUSPRPSCMPLTDPROJECTMANAGER TYPE STRING,
PROJECTMANAGERAUTHZNGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHTBPROJASGN_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_CRSHTBPROJASGN_STR-MANDT sy-vline 
WA_CRSHTBPROJASGN_STR-PROJASSIGNMENTUUID sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYMENTINTERNALID sy-vline 
WA_CRSHTBPROJASGN_STR-RESOURCEDEMANDUUID sy-vline 
WA_CRSHTBPROJASGN_STR-ENGAGEMENTPROJECTUUID sy-vline 
WA_CRSHTBPROJASGN_STR-COMPANYCODE sy-vline 
WA_CRSHTBPROJASGN_STR-COSTCENTER sy-vline 
WA_CRSHTBPROJASGN_STR-FULLNAME sy-vline 
WA_CRSHTBPROJASGN_STR-WORKPACKAGENAME sy-vline 
WA_CRSHTBPROJASGN_STR-ENGAGEMENTPROJECTSTAGE sy-vline 
WA_CRSHTBPROJASGN_STR-PROJASSIGNMENTSTARTDATE sy-vline 
WA_CRSHTBPROJASGN_STR-PROJASSIGNMENTENDDATE sy-vline 
WA_CRSHTBPROJASGN_STR-PROJASSIGNMENTLIFECYCLE sy-vline 
WA_CRSHTBPROJASGN_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEROWID sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEPARENTROWID sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEROWLEVEL sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEROWTYPE sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEISEXPANDED sy-vline 
WA_CRSHTBPROJASGN_STR-RSHASSIGNMENTDRAFTUUID sy-vline 
WA_CRSHTBPROJASGN_STR-PROJASSIGNMENTDURATIONUNIT sy-vline 
WA_CRSHTBPROJASGN_STR-JOBNAME sy-vline 
WA_CRSHTBPROJASGN_STR-RESISSTAFFEDFORSELREQUEST sy-vline 
WA_CRSHTBPROJASGN_STR-EMPLOYEEIMAGEURL sy-vline 
WA_CRSHTBPROJASGN_STR-ISEDITABLE sy-vline 
WA_CRSHTBPROJASGN_STR-PROJECTVISIBILITY sy-vline 
WA_CRSHTBPROJASGN_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CRSHTBPROJASGN_STR-AUTHORIZATIONGROUP sy-vline 
WA_CRSHTBPROJASGN_STR-ISBUSPRPSCMPLTDCUSTOMER sy-vline 
WA_CRSHTBPROJASGN_STR-CUSTOMERAUTHZNGRP sy-vline 
WA_CRSHTBPROJASGN_STR-ISBUSPRPSCMPLTDPROJECTMANAGER sy-vline 
WA_CRSHTBPROJASGN_STR-PROJECTMANAGERAUTHZNGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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