ABAP Select data from SAP table PWBSORDERS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWBSORDERS
*  INTO TABLE @DATA(IT_PWBSORDERS2).
*--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_PWBSORDERS INDEX 1 INTO DATA(WA_PWBSORDERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWBSORDERS>-MANDT = 1.
<PWBSORDERS>-ORDERTYPE = 1.
<PWBSORDERS>-ORDERID = 1.
<PWBSORDERS>-ORDERDESCRIPTION = 1.
<PWBSORDERS>-SCHEDULEDBASICSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWBSORDERS-SCHEDULEDBASICENDDATE, sy-vline,
  WA_PWBSORDERS-BASICSTARTDATE, sy-vline,
  WA_PWBSORDERS-BASICENDDATE, sy-vline,
  WA_PWBSORDERS-ACTUALSTARTDATE, sy-vline,
  WA_PWBSORDERS-ACTUALENDDATE, sy-vline,
  WA_PWBSORDERS-CONTROLLINGAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWBSORDERS 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_PWBSORDERS 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_PWBSORDERS INTO WA_PWBSORDERS.


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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PWBSORDERS-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSORDERS-WBSELEMENTINTERNALID.
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_PWBSORDERS_STR, 
MANDT TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERID TYPE STRING,
ORDERDESCRIPTION TYPE STRING,
SCHEDULEDBASICSTARTDATE TYPE STRING,
SCHEDULEDBASICENDDATE TYPE STRING,
BASICSTARTDATE TYPE STRING,
BASICENDDATE TYPE STRING,
ACTUALSTARTDATE TYPE STRING,
ACTUALENDDATE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
CONTROLLINGAREANAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
CATEGORY TYPE STRING,
ORDERTYPENAME TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWBSORDERS_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_PWBSORDERS_STR-MANDT sy-vline 
WA_PWBSORDERS_STR-ORDERTYPE sy-vline 
WA_PWBSORDERS_STR-ORDERID sy-vline 
WA_PWBSORDERS_STR-ORDERDESCRIPTION sy-vline 
WA_PWBSORDERS_STR-SCHEDULEDBASICSTARTDATE sy-vline 
WA_PWBSORDERS_STR-SCHEDULEDBASICENDDATE sy-vline 
WA_PWBSORDERS_STR-BASICSTARTDATE sy-vline 
WA_PWBSORDERS_STR-BASICENDDATE sy-vline 
WA_PWBSORDERS_STR-ACTUALSTARTDATE sy-vline 
WA_PWBSORDERS_STR-ACTUALENDDATE sy-vline 
WA_PWBSORDERS_STR-CONTROLLINGAREA sy-vline 
WA_PWBSORDERS_STR-CONTROLLINGAREANAME sy-vline 
WA_PWBSORDERS_STR-COMPANYCODE sy-vline 
WA_PWBSORDERS_STR-COMPANYCODENAME sy-vline 
WA_PWBSORDERS_STR-PLANT sy-vline 
WA_PWBSORDERS_STR-PLANTNAME sy-vline 
WA_PWBSORDERS_STR-CATEGORY sy-vline 
WA_PWBSORDERS_STR-ORDERTYPENAME sy-vline 
WA_PWBSORDERS_STR-WBSELEMENTINTERNALID sy-vline 
WA_PWBSORDERS_STR-ISMARKEDFORDELETION sy-vline      INTO ld_text SEPARATED BY SPACE.

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