ABAP Select data from SAP table CRSHSTAFFREQSITN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHSTAFFREQSITN
*  INTO TABLE @DATA(IT_CRSHSTAFFREQSITN2).
*--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_CRSHSTAFFREQSITN INDEX 1 INTO DATA(WA_CRSHSTAFFREQSITN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHSTAFFREQSITN>-MANDT = 1.
<CRSHSTAFFREQSITN>-RESOURCEDEMANDUUID = 1.
<CRSHSTAFFREQSITN>-ENGAGEMENTPROJECTUUID = 1.
<CRSHSTAFFREQSITN>-WORKPACKAGEUUID = 1.
<CRSHSTAFFREQSITN>-ENGAGEMENTPROJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHSTAFFREQSITN-ENGAGEMENTPROJECTNAME, sy-vline,
  WA_CRSHSTAFFREQSITN-WORKPACKAGE, sy-vline,
  WA_CRSHSTAFFREQSITN-WORKPACKAGENAME, sy-vline,
  WA_CRSHSTAFFREQSITN-WORKITEM, sy-vline,
  WA_CRSHSTAFFREQSITN-WORKITEMNAME, sy-vline,
  WA_CRSHSTAFFREQSITN-ROLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHSTAFFREQSITN 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_CRSHSTAFFREQSITN 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_CRSHSTAFFREQSITN INTO WA_CRSHSTAFFREQSITN.


*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 CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRSHSTAFFREQSITN-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHSTAFFREQSITN-UNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRSHSTAFFREQSITN-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHSTAFFREQSITN-CUSTOMER.
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_CRSHSTAFFREQSITN_STR, 
MANDT TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
ENGAGEMENTPROJECTUUID TYPE STRING,
WORKPACKAGEUUID TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
ENGAGEMENTPROJECTNAME TYPE STRING,
WORKPACKAGE TYPE STRING,
WORKPACKAGENAME TYPE STRING,
WORKITEM TYPE STRING,
WORKITEMNAME TYPE STRING,
ROLE TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
ENGAGEMENTPROJECTRESOURCETYPE TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
COSTCENTER TYPE STRING,
COSTCENTERDESCRIPTION TYPE STRING,
CONTROLLINGAREA TYPE STRING,
EMPLOYEEREQUESTISSTAFFED TYPE STRING,
ENGMTPROJECTSERVICEORGNAME TYPE STRING,
EMPLOYEEREQUESTDELIVORG TYPE STRING,
EMPLOYEEREQUESTHDRSRVORG TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
ENGAGEMENTPROJECTSTAGE TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
EMPLOYEEREQPRFRDEMPLYMTINTID TYPE STRING,
ENGAGEMENTPROJECTCATEGORY TYPE STRING,
REQUESTSTARTDATE TYPE STRING,
REQUESTENDDATE TYPE STRING,
EMPLOYEEREQUESTDURATION TYPE STRING,
EMPLOYEEREQUESTASSIGNDURATION TYPE STRING,
EMPLOYEEREQUESTOPENDURATION TYPE STRING,
PLANSKILLTAGDESCRIPTION TYPE STRING,
UNITOFMEASURE TYPE STRING,
PROJECTMANAGER TYPE STRING,
PROJECTMANAGEREXTERNALID TYPE STRING,
EMPLOYEEREQUESTSTATUS TYPE STRING,
NUMBEROFRESOURCES TYPE STRING,
EMPLOYEEREQUESTSTATUSTEXT TYPE STRING,
CUSTOMER TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
ORGANIZATIONBPNAME2 TYPE STRING,
CITYNAME TYPE STRING,
COUNTRY TYPE STRING,
CURRENCY TYPE STRING,
PLANNEDREVENUEINPLNCRCY TYPE STRING,
ISBUSPRPSCMPLTDCUSTOMER TYPE STRING,
CUSTOMERAUTHZNGRP TYPE STRING,
ISBUSPRPSCMPLTDPROJECTMANAGER TYPE STRING,
PROJECTMANAGERAUTHZNGRP TYPE STRING,
ASSGMTQUICKCRTE TYPE STRING,
REQDRSCEQUICKVWISALLWD TYPE STRING,
CUSTOMERQUICKVWISALLWD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHSTAFFREQSITN_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_CRSHSTAFFREQSITN_STR-MANDT sy-vline 
WA_CRSHSTAFFREQSITN_STR-RESOURCEDEMANDUUID sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTUUID sy-vline 
WA_CRSHSTAFFREQSITN_STR-WORKPACKAGEUUID sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECT sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTNAME sy-vline 
WA_CRSHSTAFFREQSITN_STR-WORKPACKAGE sy-vline 
WA_CRSHSTAFFREQSITN_STR-WORKPACKAGENAME sy-vline 
WA_CRSHSTAFFREQSITN_STR-WORKITEM sy-vline 
WA_CRSHSTAFFREQSITN_STR-WORKITEMNAME sy-vline 
WA_CRSHSTAFFREQSITN_STR-ROLE sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTRESOURCETYPE sy-vline 
WA_CRSHSTAFFREQSITN_STR-SERVICEORGANIZATION sy-vline 
WA_CRSHSTAFFREQSITN_STR-COSTCENTER sy-vline 
WA_CRSHSTAFFREQSITN_STR-COSTCENTERDESCRIPTION sy-vline 
WA_CRSHSTAFFREQSITN_STR-CONTROLLINGAREA sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTISSTAFFED sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGMTPROJECTSERVICEORGNAME sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTDELIVORG sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTHDRSRVORG sy-vline 
WA_CRSHSTAFFREQSITN_STR-PROJECTVISIBILITY sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTSTAGE sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYMENTINTERNALID sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQPRFRDEMPLYMTINTID sy-vline 
WA_CRSHSTAFFREQSITN_STR-ENGAGEMENTPROJECTCATEGORY sy-vline 
WA_CRSHSTAFFREQSITN_STR-REQUESTSTARTDATE sy-vline 
WA_CRSHSTAFFREQSITN_STR-REQUESTENDDATE sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTDURATION sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTASSIGNDURATION sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTOPENDURATION sy-vline 
WA_CRSHSTAFFREQSITN_STR-PLANSKILLTAGDESCRIPTION sy-vline 
WA_CRSHSTAFFREQSITN_STR-UNITOFMEASURE sy-vline 
WA_CRSHSTAFFREQSITN_STR-PROJECTMANAGER sy-vline 
WA_CRSHSTAFFREQSITN_STR-PROJECTMANAGEREXTERNALID sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTSTATUS sy-vline 
WA_CRSHSTAFFREQSITN_STR-NUMBEROFRESOURCES sy-vline 
WA_CRSHSTAFFREQSITN_STR-EMPLOYEEREQUESTSTATUSTEXT sy-vline 
WA_CRSHSTAFFREQSITN_STR-CUSTOMER sy-vline 
WA_CRSHSTAFFREQSITN_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_CRSHSTAFFREQSITN_STR-ORGANIZATIONBPNAME2 sy-vline 
WA_CRSHSTAFFREQSITN_STR-CITYNAME sy-vline 
WA_CRSHSTAFFREQSITN_STR-COUNTRY sy-vline 
WA_CRSHSTAFFREQSITN_STR-CURRENCY sy-vline 
WA_CRSHSTAFFREQSITN_STR-PLANNEDREVENUEINPLNCRCY sy-vline 
WA_CRSHSTAFFREQSITN_STR-ISBUSPRPSCMPLTDCUSTOMER sy-vline 
WA_CRSHSTAFFREQSITN_STR-CUSTOMERAUTHZNGRP sy-vline 
WA_CRSHSTAFFREQSITN_STR-ISBUSPRPSCMPLTDPROJECTMANAGER sy-vline 
WA_CRSHSTAFFREQSITN_STR-PROJECTMANAGERAUTHZNGRP sy-vline 
WA_CRSHSTAFFREQSITN_STR-ASSGMTQUICKCRTE sy-vline 
WA_CRSHSTAFFREQSITN_STR-REQDRSCEQUICKVWISALLWD sy-vline 
WA_CRSHSTAFFREQSITN_STR-CUSTOMERQUICKVWISALLWD sy-vline      INTO ld_text SEPARATED BY SPACE.

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