ABAP Select data from SAP table PCALDTEFORPROJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCALDTEFORPROJ
*  INTO TABLE @DATA(IT_PCALDTEFORPROJ2).
*--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_PCALDTEFORPROJ INDEX 1 INTO DATA(WA_PCALDTEFORPROJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCALDTEFORPROJ>-MANDT = 1.
<PCALDTEFORPROJ>-PLANNINGCATEGORY = 1.
<PCALDTEFORPROJ>-PROJECT = 1.
<PCALDTEFORPROJ>-PROJECTINTERNALID = 1.
<PCALDTEFORPROJ>-PROFITCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCALDTEFORPROJ-CONTROLLINGAREA, sy-vline,
  WA_PCALDTEFORPROJ-COMPANYCODE, sy-vline,
  WA_PCALDTEFORPROJ-CURRENTDATE, sy-vline,
  WA_PCALDTEFORPROJ-GLOBALCURRENCY, sy-vline,
  WA_PCALDTEFORPROJ-FOURTHMONTHINTHEPAST, sy-vline,
  WA_PCALDTEFORPROJ-SECONDMONTHINTHEPAST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCALDTEFORPROJ 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_PCALDTEFORPROJ 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_PCALDTEFORPROJ INTO WA_PCALDTEFORPROJ.


*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 PLANNINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCALDTEFORPROJ-PLANNINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCALDTEFORPROJ-PLANNINGCATEGORY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCALDTEFORPROJ-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCALDTEFORPROJ-PROFITCENTER.
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_PCALDTEFORPROJ_STR, 
MANDT TYPE STRING,
PLANNINGCATEGORY TYPE STRING,
PROJECT TYPE STRING,
PROJECTINTERNALID TYPE STRING,
PROFITCENTER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COMPANYCODE TYPE STRING,
CURRENTDATE TYPE STRING,
GLOBALCURRENCY TYPE STRING,
FOURTHMONTHINTHEPAST TYPE STRING,
SECONDMONTHINTHEPAST TYPE STRING,
PREVIOUSMONTH TYPE STRING,
CURRENTMONTH TYPE STRING,
NEXTMONTH TYPE STRING,
YEARMONTH TYPE STRING,
CALENDARMONTHNAME TYPE STRING,
POSTINGDATE TYPE STRING,
ACTUALAMOUNTINGLOBALCURRENCY TYPE STRING,
PLANAMOUNTINGLOBALCURRENCY TYPE STRING,
PROJECTSUMMARYTASKUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCALDTEFORPROJ_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_PCALDTEFORPROJ_STR-MANDT sy-vline 
WA_PCALDTEFORPROJ_STR-PLANNINGCATEGORY sy-vline 
WA_PCALDTEFORPROJ_STR-PROJECT sy-vline 
WA_PCALDTEFORPROJ_STR-PROJECTINTERNALID sy-vline 
WA_PCALDTEFORPROJ_STR-PROFITCENTER sy-vline 
WA_PCALDTEFORPROJ_STR-CONTROLLINGAREA sy-vline 
WA_PCALDTEFORPROJ_STR-COMPANYCODE sy-vline 
WA_PCALDTEFORPROJ_STR-CURRENTDATE sy-vline 
WA_PCALDTEFORPROJ_STR-GLOBALCURRENCY sy-vline 
WA_PCALDTEFORPROJ_STR-FOURTHMONTHINTHEPAST sy-vline 
WA_PCALDTEFORPROJ_STR-SECONDMONTHINTHEPAST sy-vline 
WA_PCALDTEFORPROJ_STR-PREVIOUSMONTH sy-vline 
WA_PCALDTEFORPROJ_STR-CURRENTMONTH sy-vline 
WA_PCALDTEFORPROJ_STR-NEXTMONTH sy-vline 
WA_PCALDTEFORPROJ_STR-YEARMONTH sy-vline 
WA_PCALDTEFORPROJ_STR-CALENDARMONTHNAME sy-vline 
WA_PCALDTEFORPROJ_STR-POSTINGDATE sy-vline 
WA_PCALDTEFORPROJ_STR-ACTUALAMOUNTINGLOBALCURRENCY sy-vline 
WA_PCALDTEFORPROJ_STR-PLANAMOUNTINGLOBALCURRENCY sy-vline 
WA_PCALDTEFORPROJ_STR-PROJECTSUMMARYTASKUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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