ABAP Select data from SAP table PTDW_QUOT_DB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDW_QUOT_DB
*  INTO TABLE @DATA(IT_PTDW_QUOT_DB2).
*--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_PTDW_QUOT_DB INDEX 1 INTO DATA(WA_PTDW_QUOT_DB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDW_QUOT_DB>-MANDT = 1.
<PTDW_QUOT_DB>-DWLFNR = 1.
<PTDW_QUOT_DB>-PERNR = 1.
<PTDW_QUOT_DB>-KMONTH = 1.
<PTDW_QUOT_DB>-KDAY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDW_QUOT_DB-DWLFNRWP, sy-vline,
  WA_PTDW_QUOT_DB-QUOTA, sy-vline,
  WA_PTDW_QUOT_DB-ENTITLE, sy-vline,
  WA_PTDW_QUOT_DB-TAKEN, sy-vline,
  WA_PTDW_QUOT_DB-REPAYED, sy-vline,
  WA_PTDW_QUOT_DB-ACCRUED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDW_QUOT_DB 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_PTDW_QUOT_DB 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_PTDW_QUOT_DB INTO WA_PTDW_QUOT_DB.


*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 PERI6, internal->external for field KMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI6_OUTPUT'
  EXPORTING
    input =                      WA_PTDW_QUOT_DB-KMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTDW_QUOT_DB-KMONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PTDW_QUOT_DB-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTDW_QUOT_DB-UNIT.
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_PTDW_QUOT_DB_STR, 
MANDT TYPE STRING,
DWLFNR TYPE STRING,
PERNR TYPE STRING,
KMONTH TYPE STRING,
KDAY TYPE STRING,
DWLFNRWP TYPE STRING,
QUOTA TYPE STRING,
ENTITLE TYPE STRING,
TAKEN TYPE STRING,
REPAYED TYPE STRING,
ACCRUED TYPE STRING,
LAPSED TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDW_QUOT_DB_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_PTDW_QUOT_DB_STR-MANDT sy-vline 
WA_PTDW_QUOT_DB_STR-DWLFNR sy-vline 
WA_PTDW_QUOT_DB_STR-PERNR sy-vline 
WA_PTDW_QUOT_DB_STR-KMONTH sy-vline 
WA_PTDW_QUOT_DB_STR-KDAY sy-vline 
WA_PTDW_QUOT_DB_STR-DWLFNRWP sy-vline 
WA_PTDW_QUOT_DB_STR-QUOTA sy-vline 
WA_PTDW_QUOT_DB_STR-ENTITLE sy-vline 
WA_PTDW_QUOT_DB_STR-TAKEN sy-vline 
WA_PTDW_QUOT_DB_STR-REPAYED sy-vline 
WA_PTDW_QUOT_DB_STR-ACCRUED sy-vline 
WA_PTDW_QUOT_DB_STR-LAPSED sy-vline 
WA_PTDW_QUOT_DB_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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