ABAP Select data from SAP table P01EE_DSLW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01EE_DSLW 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 P01EE_DSLW. 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 P01EE_DSLW 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_P01EE_DSLW TYPE STANDARD TABLE OF P01EE_DSLW,
      WA_P01EE_DSLW TYPE P01EE_DSLW,
      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: <P01EE_DSLW> TYPE P01EE_DSLW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01EE_DSLW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01EE_DSLW
  INTO TABLE IT_P01EE_DSLW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01EE_DSLW
*  INTO TABLE @DATA(IT_P01EE_DSLW2).
*--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_P01EE_DSLW INDEX 1 INTO DATA(WA_P01EE_DSLW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01EE_DSLW ASSIGNING <P01EE_DSLW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01EE_DSLW>-MANDT = 1.
<P01EE_DSLW>-GUID = 1.
<P01EE_DSLW>-VF = 1.
<P01EE_DSLW>-BBNRAB = 1.
<P01EE_DSLW>-BBNREP = 1.

ENDLOOP.

LOOP AT IT_P01EE_DSLW INTO WA_P01EE_DSLW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01EE_DSLW-VERNR, sy-vline,
  WA_P01EE_DSLW-ED, sy-vline,
  WA_P01EE_DSLW-FEKZ, sy-vline,
  WA_P01EE_DSLW-FEAN, sy-vline,
  WA_P01EE_DSLW-VSNR, sy-vline,
  WA_P01EE_DSLW-GBDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01EE_DSLW 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_P01EE_DSLW 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_P01EE_DSLW INTO WA_P01EE_DSLW.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P01EE_DSLW_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
VF TYPE STRING,
BBNRAB TYPE STRING,
BBNREP TYPE STRING,
VERNR TYPE STRING,
ED TYPE STRING,
FEKZ TYPE STRING,
FEAN TYPE STRING,
VSNR TYPE STRING,
GBDT TYPE STRING,
BBNRVU TYPE STRING,
AZVU TYPE STRING,
DSID TYPE STRING,
BBNRKK TYPE STRING,
AKZ TYPE STRING,
BBNRST TYPE STRING,
RESERVE1 TYPE STRING,
ANRAP TYPE STRING,
NAMEAP TYPE STRING,
TELAP TYPE STRING,
FAXAP TYPE STRING,
EERUECK TYPE STRING,
RESERVE2 TYPE STRING,
ABGRD TYPE STRING,
KENNZST TYPE STRING,
MMNA TYPE STRING,
MMAN TYPE STRING,
MMAL TYPE STRING,
MMAE TYPE STRING,
MMZA TYPE STRING,
MMZE TYPE STRING,
MMAW TYPE STRING,
MMFR TYPE STRING,
MMUN TYPE STRING,
MMMU TYPE STRING,
MMAV TYPE STRING,
MMVO TYPE STRING,
MMHE TYPE STRING,
MMBE TYPE STRING,
MMLT TYPE STRING,
MMSF TYPE STRING,
MMTK TYPE STRING,
MMAP TYPE STRING,
MMID TYPE STRING,
DSID07 TYPE STRING,
PRODID TYPE STRING,
MODID TYPE STRING,
NEBENVERNR TYPE STRING,
MMEE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01EE_DSLW_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_P01EE_DSLW_STR-MANDT sy-vline 
WA_P01EE_DSLW_STR-GUID sy-vline 
WA_P01EE_DSLW_STR-VF sy-vline 
WA_P01EE_DSLW_STR-BBNRAB sy-vline 
WA_P01EE_DSLW_STR-BBNREP sy-vline 
WA_P01EE_DSLW_STR-VERNR sy-vline 
WA_P01EE_DSLW_STR-ED sy-vline 
WA_P01EE_DSLW_STR-FEKZ sy-vline 
WA_P01EE_DSLW_STR-FEAN sy-vline 
WA_P01EE_DSLW_STR-VSNR sy-vline 
WA_P01EE_DSLW_STR-GBDT sy-vline 
WA_P01EE_DSLW_STR-BBNRVU sy-vline 
WA_P01EE_DSLW_STR-AZVU sy-vline 
WA_P01EE_DSLW_STR-DSID sy-vline 
WA_P01EE_DSLW_STR-BBNRKK sy-vline 
WA_P01EE_DSLW_STR-AKZ sy-vline 
WA_P01EE_DSLW_STR-BBNRST sy-vline 
WA_P01EE_DSLW_STR-RESERVE1 sy-vline 
WA_P01EE_DSLW_STR-ANRAP sy-vline 
WA_P01EE_DSLW_STR-NAMEAP sy-vline 
WA_P01EE_DSLW_STR-TELAP sy-vline 
WA_P01EE_DSLW_STR-FAXAP sy-vline 
WA_P01EE_DSLW_STR-EERUECK sy-vline 
WA_P01EE_DSLW_STR-RESERVE2 sy-vline 
WA_P01EE_DSLW_STR-ABGRD sy-vline 
WA_P01EE_DSLW_STR-KENNZST sy-vline 
WA_P01EE_DSLW_STR-MMNA sy-vline 
WA_P01EE_DSLW_STR-MMAN sy-vline 
WA_P01EE_DSLW_STR-MMAL sy-vline 
WA_P01EE_DSLW_STR-MMAE sy-vline 
WA_P01EE_DSLW_STR-MMZA sy-vline 
WA_P01EE_DSLW_STR-MMZE sy-vline 
WA_P01EE_DSLW_STR-MMAW sy-vline 
WA_P01EE_DSLW_STR-MMFR sy-vline 
WA_P01EE_DSLW_STR-MMUN sy-vline 
WA_P01EE_DSLW_STR-MMMU sy-vline 
WA_P01EE_DSLW_STR-MMAV sy-vline 
WA_P01EE_DSLW_STR-MMVO sy-vline 
WA_P01EE_DSLW_STR-MMHE sy-vline 
WA_P01EE_DSLW_STR-MMBE sy-vline 
WA_P01EE_DSLW_STR-MMLT sy-vline 
WA_P01EE_DSLW_STR-MMSF sy-vline 
WA_P01EE_DSLW_STR-MMTK sy-vline 
WA_P01EE_DSLW_STR-MMAP sy-vline 
WA_P01EE_DSLW_STR-MMID sy-vline 
WA_P01EE_DSLW_STR-DSID07 sy-vline 
WA_P01EE_DSLW_STR-PRODID sy-vline 
WA_P01EE_DSLW_STR-MODID sy-vline 
WA_P01EE_DSLW_STR-NEBENVERNR sy-vline 
WA_P01EE_DSLW_STR-MMEE sy-vline      INTO ld_text SEPARATED BY SPACE.

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