ABAP Select data from SAP table PRSHRESPERREQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRSHRESPERREQ
*  INTO TABLE @DATA(IT_PRSHRESPERREQ2).
*--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_PRSHRESPERREQ INDEX 1 INTO DATA(WA_PRSHRESPERREQ2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRSHRESPERREQ-WORKPACKAGEUUID, sy-vline,
  WA_PRSHRESPERREQ-WORKITEM, sy-vline,
  WA_PRSHRESPERREQ-SERVICEORGANIZATION, sy-vline,
  WA_PRSHRESPERREQ-ENGAGEMENTPROJECTRESOURCE, sy-vline,
  WA_PRSHRESPERREQ-EMPLOYEEREQUESTISSTAFFED, sy-vline,
  WA_PRSHRESPERREQ-COSTCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRSHRESPERREQ 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_PRSHRESPERREQ 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_PRSHRESPERREQ INTO WA_PRSHRESPERREQ.


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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRSHRESPERREQ-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRSHRESPERREQ-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_PRSHRESPERREQ_STR, 
MANDT TYPE STRING,
RESOURCEDEMANDUUID TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
ENGAGEMENTPROJECTUUID TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
WORKPACKAGEUUID TYPE STRING,
WORKITEM TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
EMPLOYEEREQUESTISSTAFFED TYPE STRING,
COSTCENTER TYPE STRING,
COMPANYCODE TYPE STRING,
EMPLOYEEREQUESTDELIVORG TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
EMPLOYEEREQUESTDURATION TYPE STRING,
EMPLOYEEREQUESTOPENDURATION TYPE STRING,
UNITOFMEASURE TYPE STRING,
EMPLOYEEREQUESTSTATUS TYPE STRING,
ENGAGEMENTPROJECTRESOURCETYPE TYPE STRING,
WORKPACKAGENAME TYPE STRING,
PROJECTVISIBILITY TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
ISBUSPRPSCMPLTDCUSTOMER TYPE STRING,
CUSTOMERAUTHZNGRP TYPE STRING,
ISBUSPRPSCMPLTDPROJECTMANAGER TYPE STRING,
PROJECTMANAGERAUTHZNGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRSHRESPERREQ_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_PRSHRESPERREQ_STR-MANDT sy-vline 
WA_PRSHRESPERREQ_STR-RESOURCEDEMANDUUID sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYMENTINTERNALID sy-vline 
WA_PRSHRESPERREQ_STR-ENGAGEMENTPROJECTUUID sy-vline 
WA_PRSHRESPERREQ_STR-ENGAGEMENTPROJECT sy-vline 
WA_PRSHRESPERREQ_STR-WORKPACKAGEUUID sy-vline 
WA_PRSHRESPERREQ_STR-WORKITEM sy-vline 
WA_PRSHRESPERREQ_STR-SERVICEORGANIZATION sy-vline 
WA_PRSHRESPERREQ_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYEEREQUESTISSTAFFED sy-vline 
WA_PRSHRESPERREQ_STR-COSTCENTER sy-vline 
WA_PRSHRESPERREQ_STR-COMPANYCODE sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYEEREQUESTDELIVORG sy-vline 
WA_PRSHRESPERREQ_STR-STARTDATE sy-vline 
WA_PRSHRESPERREQ_STR-ENDDATE sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYEEREQUESTDURATION sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYEEREQUESTOPENDURATION sy-vline 
WA_PRSHRESPERREQ_STR-UNITOFMEASURE sy-vline 
WA_PRSHRESPERREQ_STR-EMPLOYEEREQUESTSTATUS sy-vline 
WA_PRSHRESPERREQ_STR-ENGAGEMENTPROJECTRESOURCETYPE sy-vline 
WA_PRSHRESPERREQ_STR-WORKPACKAGENAME sy-vline 
WA_PRSHRESPERREQ_STR-PROJECTVISIBILITY sy-vline 
WA_PRSHRESPERREQ_STR-AUTHORIZATIONGROUP sy-vline 
WA_PRSHRESPERREQ_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_PRSHRESPERREQ_STR-ISBUSPRPSCMPLTDCUSTOMER sy-vline 
WA_PRSHRESPERREQ_STR-CUSTOMERAUTHZNGRP sy-vline 
WA_PRSHRESPERREQ_STR-ISBUSPRPSCMPLTDPROJECTMANAGER sy-vline 
WA_PRSHRESPERREQ_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.