ABAP Select data from SAP table PDS_OPER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDS_OPER
*  INTO TABLE @DATA(IT_PDS_OPER2).
*--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_PDS_OPER INDEX 1 INTO DATA(WA_PDS_OPER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDS_OPER>-MANDT = 1.
<PDS_OPER>-GUID = 1.
<PDS_OPER>-GUID_OPER = 1.
<PDS_OPER>-PLANNR = 1.
<PDS_OPER>-PLNTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDS_OPER-PLNKN, sy-vline,
  WA_PDS_OPER-IDENT_REF, sy-vline,
  WA_PDS_OPER-IDENT, sy-vline,
  WA_PDS_OPER-ACTTYPE, sy-vline,
  WA_PDS_OPER-ZAEHL, sy-vline,
  WA_PDS_OPER-KAPID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDS_OPER 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_PDS_OPER 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_PDS_OPER INTO WA_PDS_OPER.


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

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

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

*Conversion exit CUNIT, internal->external for field BUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PDS_OPER-BUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDS_OPER-BUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PDS_OPER-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDS_OPER-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_PDS_OPER_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
GUID_OPER TYPE STRING,
PLANNR TYPE STRING,
PLNTY TYPE STRING,
PLNKN TYPE STRING,
IDENT_REF TYPE STRING,
IDENT TYPE STRING,
ACTTYPE TYPE STRING,
ZAEHL TYPE STRING,
KAPID TYPE STRING,
VPLTY TYPE STRING,
VPLNR TYPE STRING,
HERKUNFT TYPE STRING,
ARBID TYPE STRING,
AENNR TYPE STRING,
BLP_REL TYPE STRING,
BCONS_FIX TYPE STRING,
BCONS_VAR TYPE STRING,
BUNIT TYPE STRING,
MODE_REL TYPE STRING,
MODE_PRIO TYPE STRING,
DURFIX TYPE STRING,
UNIT TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_TIME TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIME TYPE STRING,
MAX_SH_BRK TYPE STRING,
MAX_SH_BRK_VALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDS_OPER_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_PDS_OPER_STR-MANDT sy-vline 
WA_PDS_OPER_STR-GUID sy-vline 
WA_PDS_OPER_STR-GUID_OPER sy-vline 
WA_PDS_OPER_STR-PLANNR sy-vline 
WA_PDS_OPER_STR-PLNTY sy-vline 
WA_PDS_OPER_STR-PLNKN sy-vline 
WA_PDS_OPER_STR-IDENT_REF sy-vline 
WA_PDS_OPER_STR-IDENT sy-vline 
WA_PDS_OPER_STR-ACTTYPE sy-vline 
WA_PDS_OPER_STR-ZAEHL sy-vline 
WA_PDS_OPER_STR-KAPID sy-vline 
WA_PDS_OPER_STR-VPLTY sy-vline 
WA_PDS_OPER_STR-VPLNR sy-vline 
WA_PDS_OPER_STR-HERKUNFT sy-vline 
WA_PDS_OPER_STR-ARBID sy-vline 
WA_PDS_OPER_STR-AENNR sy-vline 
WA_PDS_OPER_STR-BLP_REL sy-vline 
WA_PDS_OPER_STR-BCONS_FIX sy-vline 
WA_PDS_OPER_STR-BCONS_VAR sy-vline 
WA_PDS_OPER_STR-BUNIT sy-vline 
WA_PDS_OPER_STR-MODE_REL sy-vline 
WA_PDS_OPER_STR-MODE_PRIO sy-vline 
WA_PDS_OPER_STR-DURFIX sy-vline 
WA_PDS_OPER_STR-UNIT sy-vline 
WA_PDS_OPER_STR-CREATE_USER sy-vline 
WA_PDS_OPER_STR-CREATE_TIME sy-vline 
WA_PDS_OPER_STR-CHANGE_USER sy-vline 
WA_PDS_OPER_STR-CHANGE_TIME sy-vline 
WA_PDS_OPER_STR-MAX_SH_BRK sy-vline 
WA_PDS_OPER_STR-MAX_SH_BRK_VALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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