ABAP Select data from SAP table CRSHREQFORRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHREQFORRES
*  INTO TABLE @DATA(IT_CRSHREQFORRES2).
*--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_CRSHREQFORRES INDEX 1 INTO DATA(WA_CRSHREQFORRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHREQFORRES>-MANDT = 1.
<CRSHREQFORRES>-PROJASSIGNMENTUUID = 1.
<CRSHREQFORRES>-AUTHORIZATIONGROUP = 1.
<CRSHREQFORRES>-ISBUSINESSPURPOSECOMPLETED = 1.
<CRSHREQFORRES>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHREQFORRES-COSTCENTER, sy-vline,
  WA_CRSHREQFORRES-RESOURCEDEMANDUUID, sy-vline,
  WA_CRSHREQFORRES-WORKITEM, sy-vline,
  WA_CRSHREQFORRES-SERVICEORGANIZATION, sy-vline,
  WA_CRSHREQFORRES-ENGMTPROJECTSERVICEORGNAME, sy-vline,
  WA_CRSHREQFORRES-ENGAGEMENTPROJECTRESOURCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHREQFORRES 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_CRSHREQFORRES 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_CRSHREQFORRES INTO WA_CRSHREQFORRES.


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

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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRSHREQFORRES-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHREQFORRES-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_CRSHREQFORRES_STR, 
MANDT TYPE STRING,
PROJASSIGNMENTUUID TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
COMPANYCODE TYPE STRING,
COSTCENTER TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
WORKITEM TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
ENGMTPROJECTSERVICEORGNAME TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
ROLE TYPE STRING,
ENGAGEMENTPROJECTCATEGORY TYPE STRING,
EMPLOYEEREQUESTDELIVORG TYPE STRING,
CURRENCY TYPE STRING,
PLANNEDREVENUEINPLNCRCY TYPE STRING,
BILLINGCONTROLCATEGORY TYPE STRING,
ENGAGEMENTPROJECTNAME TYPE STRING,
WORKPACKAGE TYPE STRING,
WORKPACKAGENAME TYPE STRING,
WORKITEMNAME TYPE STRING,
PROJECTMANAGER TYPE STRING,
PROJECTMANAGEREXTERNALID TYPE STRING,
EMPLOYEEREQUESTPROJMGRFULLNAME TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERFULLNAME TYPE STRING,
CITYNAME TYPE STRING,
ISBUSPRPSCMPLTDCUSTOMER TYPE STRING,
CUSTOMERAUTHZNGRP TYPE STRING,
ISBUSPRPSCMPLTDPROJECTMANAGER TYPE STRING,
PROJECTMANAGERAUTHZNGRP TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
EMPLOYEEREQUESTDURATION TYPE STRING,
PLANSKILLTAGDESCRIPTION TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
ENGAGEMENTPROJECTSTAGE TYPE STRING,
UNITOFMEASURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHREQFORRES_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_CRSHREQFORRES_STR-MANDT sy-vline 
WA_CRSHREQFORRES_STR-PROJASSIGNMENTUUID sy-vline 
WA_CRSHREQFORRES_STR-AUTHORIZATIONGROUP sy-vline 
WA_CRSHREQFORRES_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CRSHREQFORRES_STR-COMPANYCODE sy-vline 
WA_CRSHREQFORRES_STR-COSTCENTER sy-vline 
WA_CRSHREQFORRES_STR-RESOURCEDEMANDUUID sy-vline 
WA_CRSHREQFORRES_STR-WORKITEM sy-vline 
WA_CRSHREQFORRES_STR-SERVICEORGANIZATION sy-vline 
WA_CRSHREQFORRES_STR-ENGMTPROJECTSERVICEORGNAME sy-vline 
WA_CRSHREQFORRES_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_CRSHREQFORRES_STR-ENGAGEMENTPROJECT sy-vline 
WA_CRSHREQFORRES_STR-ROLE sy-vline 
WA_CRSHREQFORRES_STR-ENGAGEMENTPROJECTCATEGORY sy-vline 
WA_CRSHREQFORRES_STR-EMPLOYEEREQUESTDELIVORG sy-vline 
WA_CRSHREQFORRES_STR-CURRENCY sy-vline 
WA_CRSHREQFORRES_STR-PLANNEDREVENUEINPLNCRCY sy-vline 
WA_CRSHREQFORRES_STR-BILLINGCONTROLCATEGORY sy-vline 
WA_CRSHREQFORRES_STR-ENGAGEMENTPROJECTNAME sy-vline 
WA_CRSHREQFORRES_STR-WORKPACKAGE sy-vline 
WA_CRSHREQFORRES_STR-WORKPACKAGENAME sy-vline 
WA_CRSHREQFORRES_STR-WORKITEMNAME sy-vline 
WA_CRSHREQFORRES_STR-PROJECTMANAGER sy-vline 
WA_CRSHREQFORRES_STR-PROJECTMANAGEREXTERNALID sy-vline 
WA_CRSHREQFORRES_STR-EMPLOYEEREQUESTPROJMGRFULLNAME sy-vline 
WA_CRSHREQFORRES_STR-EMPLOYMENTINTERNALID sy-vline 
WA_CRSHREQFORRES_STR-CUSTOMER sy-vline 
WA_CRSHREQFORRES_STR-CUSTOMERFULLNAME sy-vline 
WA_CRSHREQFORRES_STR-CITYNAME sy-vline 
WA_CRSHREQFORRES_STR-ISBUSPRPSCMPLTDCUSTOMER sy-vline 
WA_CRSHREQFORRES_STR-CUSTOMERAUTHZNGRP sy-vline 
WA_CRSHREQFORRES_STR-ISBUSPRPSCMPLTDPROJECTMANAGER sy-vline 
WA_CRSHREQFORRES_STR-PROJECTMANAGERAUTHZNGRP sy-vline 
WA_CRSHREQFORRES_STR-STARTDATE sy-vline 
WA_CRSHREQFORRES_STR-ENDDATE sy-vline 
WA_CRSHREQFORRES_STR-EMPLOYEEREQUESTDURATION sy-vline 
WA_CRSHREQFORRES_STR-PLANSKILLTAGDESCRIPTION sy-vline 
WA_CRSHREQFORRES_STR-PROJECTVISIBILITY sy-vline 
WA_CRSHREQFORRES_STR-ENGAGEMENTPROJECTSTAGE sy-vline 
WA_CRSHREQFORRES_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.