ABAP Select data from SAP table P03_LZBG2_L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P03_LZBG2_L 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 P03_LZBG2_L. 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 P03_LZBG2_L 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_P03_LZBG2_L TYPE STANDARD TABLE OF P03_LZBG2_L,
      WA_P03_LZBG2_L TYPE P03_LZBG2_L,
      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: <P03_LZBG2_L> TYPE P03_LZBG2_L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P03_LZBG2_L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P03_LZBG2_L
  INTO TABLE IT_P03_LZBG2_L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P03_LZBG2_L
*  INTO TABLE @DATA(IT_P03_LZBG2_L2).
*--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_P03_LZBG2_L INDEX 1 INTO DATA(WA_P03_LZBG2_L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P03_LZBG2_L ASSIGNING <P03_LZBG2_L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P03_LZBG2_L>-MANDT = 1.
<P03_LZBG2_L>-PERNR = 1.
<P03_LZBG2_L>-REVTY = 1.
<P03_LZBG2_L>-BEGDA = 1.
<P03_LZBG2_L>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_P03_LZBG2_L INTO WA_P03_LZBG2_L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P03_LZBG2_L-SEQNR, sy-vline,
  WA_P03_LZBG2_L-SETYP, sy-vline,
  WA_P03_LZBG2_L-READY, sy-vline,
  WA_P03_LZBG2_L-SRTZA, sy-vline,
  WA_P03_LZBG2_L-EMETH, sy-vline,
  WA_P03_LZBG2_L-LZTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P03_LZBG2_L 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_P03_LZBG2_L 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_P03_LZBG2_L INTO WA_P03_LZBG2_L.


*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_P03_LZBG2_L_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REVTY TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SEQNR TYPE STRING,
SETYP TYPE STRING,
READY TYPE STRING,
SRTZA TYPE STRING,
EMETH TYPE STRING,
LZTYP TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
PGMID TYPE STRING,
EPRO2 TYPE STRING,
ESVGR TYPE STRING,
EUSVA TYPE STRING,
WOBD0 TYPE STRING,
ZOBD0 TYPE STRING,
EDTNR TYPE STRING,
ESANR TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
DNNNA TYPE STRING,
DNVNA TYPE STRING,
ASVGR TYPE STRING,
AUSVA TYPE STRING,
LOHNB TYPE STRING,
ASVG1 TYPE STRING,
EFEAT TYPE STRING,
DGSV1 TYPE STRING,
DGNAM TYPE STRING,
DGFZA TYPE STRING,
DGNUM TYPE STRING,
LBTEL TYPE STRING,
TETG0 TYPE STRING,
MVBEG TYPE STRING,
MVEND TYPE STRING,
VSZW1 TYPE STRING,
VSZW2 TYPE STRING,
VSZW3 TYPE STRING,
WAERS TYPE STRING,
BGAL0 TYPE STRING,
BGSZ0 TYPE STRING,
TEBG0 TYPE STRING,
MVBG0 TYPE STRING,
MVBE0 TYPE STRING,
VSZWG TYPE STRING,
UVBG0 TYPE STRING,
INPER TYPE STRING,
REFN0 TYPE STRING,
BKMV0 TYPE STRING,
KMVI0 TYPE STRING,
BACTI TYPE STRING,
BACTI_ICON TYPE STRING,
BACTI_TXT TYPE STRING,
ASVGR_TXT TYPE STRING,
AUSVA_TXT TYPE STRING,
LOHNB_TXT TYPE STRING,
LBNAM TYPE STRING,
LBAD1 TYPE STRING,
LBAD2 TYPE STRING,
LBAD3 TYPE STRING,
LBAD4 TYPE STRING,
LBFAX TYPE STRING,
LBFZA TYPE STRING,
LBFZA_TXT TYPE STRING,
DGFZA_TXT TYPE STRING,
ARAN0_TXT TYPE STRING,
DNTIT TYPE STRING,
DNADR TYPE STRING,
DNLKZ TYPE STRING,
DNPLZ TYPE STRING,
DNORT TYPE STRING,
SETYP_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P03_LZBG2_L_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_P03_LZBG2_L_STR-MANDT sy-vline 
WA_P03_LZBG2_L_STR-PERNR sy-vline 
WA_P03_LZBG2_L_STR-REVTY sy-vline 
WA_P03_LZBG2_L_STR-BEGDA sy-vline 
WA_P03_LZBG2_L_STR-ENDDA sy-vline 
WA_P03_LZBG2_L_STR-SEQNR sy-vline 
WA_P03_LZBG2_L_STR-SETYP sy-vline 
WA_P03_LZBG2_L_STR-READY sy-vline 
WA_P03_LZBG2_L_STR-SRTZA sy-vline 
WA_P03_LZBG2_L_STR-EMETH sy-vline 
WA_P03_LZBG2_L_STR-LZTYP sy-vline 
WA_P03_LZBG2_L_STR-UNAME sy-vline 
WA_P03_LZBG2_L_STR-DATUM sy-vline 
WA_P03_LZBG2_L_STR-UZEIT sy-vline 
WA_P03_LZBG2_L_STR-PGMID sy-vline 
WA_P03_LZBG2_L_STR-EPRO2 sy-vline 
WA_P03_LZBG2_L_STR-ESVGR sy-vline 
WA_P03_LZBG2_L_STR-EUSVA sy-vline 
WA_P03_LZBG2_L_STR-WOBD0 sy-vline 
WA_P03_LZBG2_L_STR-ZOBD0 sy-vline 
WA_P03_LZBG2_L_STR-EDTNR sy-vline 
WA_P03_LZBG2_L_STR-ESANR sy-vline 
WA_P03_LZBG2_L_STR-AUSVL sy-vline 
WA_P03_LZBG2_L_STR-AUSVG sy-vline 
WA_P03_LZBG2_L_STR-DNNNA sy-vline 
WA_P03_LZBG2_L_STR-DNVNA sy-vline 
WA_P03_LZBG2_L_STR-ASVGR sy-vline 
WA_P03_LZBG2_L_STR-AUSVA sy-vline 
WA_P03_LZBG2_L_STR-LOHNB sy-vline 
WA_P03_LZBG2_L_STR-ASVG1 sy-vline 
WA_P03_LZBG2_L_STR-EFEAT sy-vline 
WA_P03_LZBG2_L_STR-DGSV1 sy-vline 
WA_P03_LZBG2_L_STR-DGNAM sy-vline 
WA_P03_LZBG2_L_STR-DGFZA sy-vline 
WA_P03_LZBG2_L_STR-DGNUM sy-vline 
WA_P03_LZBG2_L_STR-LBTEL sy-vline 
WA_P03_LZBG2_L_STR-TETG0 sy-vline 
WA_P03_LZBG2_L_STR-MVBEG sy-vline 
WA_P03_LZBG2_L_STR-MVEND sy-vline 
WA_P03_LZBG2_L_STR-VSZW1 sy-vline 
WA_P03_LZBG2_L_STR-VSZW2 sy-vline 
WA_P03_LZBG2_L_STR-VSZW3 sy-vline 
WA_P03_LZBG2_L_STR-WAERS sy-vline 
WA_P03_LZBG2_L_STR-BGAL0 sy-vline 
WA_P03_LZBG2_L_STR-BGSZ0 sy-vline 
WA_P03_LZBG2_L_STR-TEBG0 sy-vline 
WA_P03_LZBG2_L_STR-MVBG0 sy-vline 
WA_P03_LZBG2_L_STR-MVBE0 sy-vline 
WA_P03_LZBG2_L_STR-VSZWG sy-vline 
WA_P03_LZBG2_L_STR-UVBG0 sy-vline 
WA_P03_LZBG2_L_STR-INPER sy-vline 
WA_P03_LZBG2_L_STR-REFN0 sy-vline 
WA_P03_LZBG2_L_STR-BKMV0 sy-vline 
WA_P03_LZBG2_L_STR-KMVI0 sy-vline 
WA_P03_LZBG2_L_STR-BACTI sy-vline 
WA_P03_LZBG2_L_STR-BACTI_ICON sy-vline 
WA_P03_LZBG2_L_STR-BACTI_TXT sy-vline 
WA_P03_LZBG2_L_STR-ASVGR_TXT sy-vline 
WA_P03_LZBG2_L_STR-AUSVA_TXT sy-vline 
WA_P03_LZBG2_L_STR-LOHNB_TXT sy-vline 
WA_P03_LZBG2_L_STR-LBNAM sy-vline 
WA_P03_LZBG2_L_STR-LBAD1 sy-vline 
WA_P03_LZBG2_L_STR-LBAD2 sy-vline 
WA_P03_LZBG2_L_STR-LBAD3 sy-vline 
WA_P03_LZBG2_L_STR-LBAD4 sy-vline 
WA_P03_LZBG2_L_STR-LBFAX sy-vline 
WA_P03_LZBG2_L_STR-LBFZA sy-vline 
WA_P03_LZBG2_L_STR-LBFZA_TXT sy-vline 
WA_P03_LZBG2_L_STR-DGFZA_TXT sy-vline 
WA_P03_LZBG2_L_STR-ARAN0_TXT sy-vline 
WA_P03_LZBG2_L_STR-DNTIT sy-vline 
WA_P03_LZBG2_L_STR-DNADR sy-vline 
WA_P03_LZBG2_L_STR-DNLKZ sy-vline 
WA_P03_LZBG2_L_STR-DNPLZ sy-vline 
WA_P03_LZBG2_L_STR-DNORT sy-vline 
WA_P03_LZBG2_L_STR-SETYP_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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