ABAP Select data from SAP table PSDBILLFORPROJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSDBILLFORPROJ
*  INTO TABLE @DATA(IT_PSDBILLFORPROJ2).
*--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_PSDBILLFORPROJ INDEX 1 INTO DATA(WA_PSDBILLFORPROJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSDBILLFORPROJ>-MANDT = 1.
<PSDBILLFORPROJ>-BILLINGDOCUMENT = 1.
<PSDBILLFORPROJ>-BILLINGDOCUMENTITEM = 1.
<PSDBILLFORPROJ>-SALESDOCUMENT = 1.
<PSDBILLFORPROJ>-SALESDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSDBILLFORPROJ-SALESSDDOCUMENTCATEGORY, sy-vline,
  WA_PSDBILLFORPROJ-BILLINGDOCUMENTDATE, sy-vline,
  WA_PSDBILLFORPROJ-SDDOCUMENTCATEGORY, sy-vline,
  WA_PSDBILLFORPROJ-BILLINGDOCUMENTISCANCELLED, sy-vline,
  WA_PSDBILLFORPROJ-DEBITMEMOREQUEST, sy-vline,
  WA_PSDBILLFORPROJ-DEBITMEMOREQUESTITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSDBILLFORPROJ 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_PSDBILLFORPROJ 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_PSDBILLFORPROJ INTO WA_PSDBILLFORPROJ.


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

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

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

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

*Conversion exit ABPSN, internal->external for field PROJECT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSDBILLFORPROJ-PROJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDBILLFORPROJ-PROJECT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSDBILLFORPROJ-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDBILLFORPROJ-WBSELEMENT.
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_PSDBILLFORPROJ_STR, 
MANDT TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
BILLINGDOCUMENTITEM TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
SALESSDDOCUMENTCATEGORY TYPE STRING,
BILLINGDOCUMENTDATE TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
BILLINGDOCUMENTISCANCELLED TYPE STRING,
DEBITMEMOREQUEST TYPE STRING,
DEBITMEMOREQUESTITEM TYPE STRING,
DEBITMEMOREQUESTITEMCATEGORY TYPE STRING,
BILLINGPLAN TYPE STRING,
NETAMOUNT TYPE STRING,
PROJECTCURRENCY TYPE STRING,
CURRENTDATE TYPE STRING,
CLEARINGACCOUNTINGDOCUMENT TYPE STRING,
PROJECT TYPE STRING,
PROJECTPROFILECODE TYPE STRING,
WBSELEMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSDBILLFORPROJ_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_PSDBILLFORPROJ_STR-MANDT sy-vline 
WA_PSDBILLFORPROJ_STR-BILLINGDOCUMENT sy-vline 
WA_PSDBILLFORPROJ_STR-BILLINGDOCUMENTITEM sy-vline 
WA_PSDBILLFORPROJ_STR-SALESDOCUMENT sy-vline 
WA_PSDBILLFORPROJ_STR-SALESDOCUMENTITEM sy-vline 
WA_PSDBILLFORPROJ_STR-SALESSDDOCUMENTCATEGORY sy-vline 
WA_PSDBILLFORPROJ_STR-BILLINGDOCUMENTDATE sy-vline 
WA_PSDBILLFORPROJ_STR-SDDOCUMENTCATEGORY sy-vline 
WA_PSDBILLFORPROJ_STR-BILLINGDOCUMENTISCANCELLED sy-vline 
WA_PSDBILLFORPROJ_STR-DEBITMEMOREQUEST sy-vline 
WA_PSDBILLFORPROJ_STR-DEBITMEMOREQUESTITEM sy-vline 
WA_PSDBILLFORPROJ_STR-DEBITMEMOREQUESTITEMCATEGORY sy-vline 
WA_PSDBILLFORPROJ_STR-BILLINGPLAN sy-vline 
WA_PSDBILLFORPROJ_STR-NETAMOUNT sy-vline 
WA_PSDBILLFORPROJ_STR-PROJECTCURRENCY sy-vline 
WA_PSDBILLFORPROJ_STR-CURRENTDATE sy-vline 
WA_PSDBILLFORPROJ_STR-CLEARINGACCOUNTINGDOCUMENT sy-vline 
WA_PSDBILLFORPROJ_STR-PROJECT sy-vline 
WA_PSDBILLFORPROJ_STR-PROJECTPROFILECODE sy-vline 
WA_PSDBILLFORPROJ_STR-WBSELEMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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