ABAP Select data from SAP table PGHOFCPROJAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PGHOFCPROJAL
*  INTO TABLE @DATA(IT_PGHOFCPROJAL2).
*--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_PGHOFCPROJAL INDEX 1 INTO DATA(WA_PGHOFCPROJAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PGHOFCPROJAL>-MANDT = 1.
<PGHOFCPROJAL>-UPSTREAMPROJECTID = 1.
<PGHOFCPROJAL>-FORECASTTYPE = 1.
<PGHOFCPROJAL>-PROJECTNAME = 1.
<PGHOFCPROJAL>-FORECASTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PGHOFCPROJAL-UPSTREAMPROJEFFCTVSTARTDATE, sy-vline,
  WA_PGHOFCPROJAL-UPSTREAMPROJEFFCTVENDDATE, sy-vline,
  WA_PGHOFCPROJAL-UPSTREAMPROFILEID, sy-vline,
  WA_PGHOFCPROJAL-PROJECTDESCRIPTION, sy-vline,
  WA_PGHOFCPROJAL-ALLOCATIONFREQUENCYCODE, sy-vline,
  WA_PGHOFCPROJAL-DISPLAYTIMEZONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PGHOFCPROJAL 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_PGHOFCPROJAL 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_PGHOFCPROJAL INTO WA_PGHOFCPROJAL.


*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_PGHOFCPROJAL-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PGHOFCPROJAL-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_PGHOFCPROJAL_STR, 
MANDT TYPE STRING,
UPSTREAMPROJECTID TYPE STRING,
FORECASTTYPE TYPE STRING,
PROJECTNAME TYPE STRING,
FORECASTDATE TYPE STRING,
UPSTREAMPROJEFFCTVSTARTDATE TYPE STRING,
UPSTREAMPROJEFFCTVENDDATE TYPE STRING,
UPSTREAMPROFILEID TYPE STRING,
PROJECTDESCRIPTION TYPE STRING,
ALLOCATIONFREQUENCYCODE TYPE STRING,
DISPLAYTIMEZONE TYPE STRING,
STATUSOBJECTNUMBER TYPE STRING,
UPSTREAMUSERGROUPID TYPE STRING,
FORECASTTYPEDESCRIPTION TYPE STRING,
STATUSPROFILE TYPE STRING,
FREQUENCYDESCRIPTION TYPE STRING,
NETWORKMEDIUM TYPE STRING,
UNITOFMEASURE TYPE STRING,
ROUNDOFFPRECISION TYPE STRING,
NETWORKMEDIUMDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PGHOFCPROJAL_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_PGHOFCPROJAL_STR-MANDT sy-vline 
WA_PGHOFCPROJAL_STR-UPSTREAMPROJECTID sy-vline 
WA_PGHOFCPROJAL_STR-FORECASTTYPE sy-vline 
WA_PGHOFCPROJAL_STR-PROJECTNAME sy-vline 
WA_PGHOFCPROJAL_STR-FORECASTDATE sy-vline 
WA_PGHOFCPROJAL_STR-UPSTREAMPROJEFFCTVSTARTDATE sy-vline 
WA_PGHOFCPROJAL_STR-UPSTREAMPROJEFFCTVENDDATE sy-vline 
WA_PGHOFCPROJAL_STR-UPSTREAMPROFILEID sy-vline 
WA_PGHOFCPROJAL_STR-PROJECTDESCRIPTION sy-vline 
WA_PGHOFCPROJAL_STR-ALLOCATIONFREQUENCYCODE sy-vline 
WA_PGHOFCPROJAL_STR-DISPLAYTIMEZONE sy-vline 
WA_PGHOFCPROJAL_STR-STATUSOBJECTNUMBER sy-vline 
WA_PGHOFCPROJAL_STR-UPSTREAMUSERGROUPID sy-vline 
WA_PGHOFCPROJAL_STR-FORECASTTYPEDESCRIPTION sy-vline 
WA_PGHOFCPROJAL_STR-STATUSPROFILE sy-vline 
WA_PGHOFCPROJAL_STR-FREQUENCYDESCRIPTION sy-vline 
WA_PGHOFCPROJAL_STR-NETWORKMEDIUM sy-vline 
WA_PGHOFCPROJAL_STR-UNITOFMEASURE sy-vline 
WA_PGHOFCPROJAL_STR-ROUNDOFFPRECISION sy-vline 
WA_PGHOFCPROJAL_STR-NETWORKMEDIUMDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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