ABAP Select data from SAP table P03_MBGB_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_MBGB_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_MBGB_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_MBGB_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_MBGB_L TYPE STANDARD TABLE OF P03_MBGB_L,
      WA_P03_MBGB_L TYPE P03_MBGB_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_MBGB_L> TYPE P03_MBGB_L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P03_MBGB_L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P03_MBGB_L
  INTO TABLE IT_P03_MBGB_L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P03_MBGB_L
*  INTO TABLE @DATA(IT_P03_MBGB_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_MBGB_L INDEX 1 INTO DATA(WA_P03_MBGB_L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P03_MBGB_L ASSIGNING <P03_MBGB_L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P03_MBGB_L>-MANDT = 1.
<P03_MBGB_L>-PERNR = 1.
<P03_MBGB_L>-BEGDA = 1.
<P03_MBGB_L>-ENDDA = 1.
<P03_MBGB_L>-SEQNR = 1.

ENDLOOP.

LOOP AT IT_P03_MBGB_L INTO WA_P03_MBGB_L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P03_MBGB_L-READY_SOLL, sy-vline,
  WA_P03_MBGB_L-SRTZA_SOLL, sy-vline,
  WA_P03_MBGB_L-SRTZA_MANU, sy-vline,
  WA_P03_MBGB_L-SETYP_SOLL, sy-vline,
  WA_P03_MBGB_L-TIMESTAMP, sy-vline,
  WA_P03_MBGB_L-SETYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P03_MBGB_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_MBGB_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_MBGB_L INTO WA_P03_MBGB_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.

*Conversion exit SXIDN, internal->external for field MAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_P03_MBGB_L-MAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P03_MBGB_L-MAIL.
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_P03_MBGB_L_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SEQNR TYPE STRING,
READY_SOLL TYPE STRING,
SRTZA_SOLL TYPE STRING,
SRTZA_MANU TYPE STRING,
SETYP_SOLL TYPE STRING,
TIMESTAMP TYPE STRING,
SETYP TYPE STRING,
SRTZA_IST TYPE STRING,
SRTZA_ELDA TYPE STRING,
SRTZA_ECHO_ELDA TYPE STRING,
MANU_MBGM_GUID TYPE STRING,
FICO_INPER TYPE STRING,
ECHO_UNAME TYPE STRING,
ECHO_DATUM TYPE STRING,
ECHO_UZEIT TYPE STRING,
EPRO2 TYPE STRING,
ESVGR TYPE STRING,
EUSVA TYPE STRING,
WOBD0 TYPE STRING,
ZOBD0 TYPE STRING,
EDTNR TYPE STRING,
ESANR TYPE STRING,
REFP0 TYPE STRING,
MPKE TYPE STRING,
DTRID_SPLIT TYPE STRING,
REFN0 TYPE STRING,
REFU TYPE STRING,
REFV TYPE STRING,
VSUM TYPE STRING,
VERG TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
DNNNA TYPE STRING,
DNVNA TYPE STRING,
INF1 TYPE STRING,
INF2 TYPE STRING,
GUID TYPE STRING,
ASVTR TYPE STRING,
SAPZS TYPE STRING,
ASVAN TYPE STRING,
LOHNB TYPE STRING,
DGSV1 TYPE STRING,
REFDA TYPE STRING,
JAGB TYPE STRING,
INPER TYPE STRING,
APPL TYPE STRING,
DTRID TYPE STRING,
GRP_PKT_DTA TYPE STRING,
ANKEY_CA TYPE STRING,
VSUM_DIFF TYPE STRING,
IABKRS TYPE STRING,
PAYDT TYPE STRING,
ANZPM TYPE STRING,
MBGM_SART_BVA TYPE STRING,
DGNAM TYPE STRING,
LBTEL TYPE STRING,
MAIL TYPE STRING,
MANU_GRUND TYPE STRING,
LINKED_GUID TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
BACTI TYPE STRING,
BACTI_ICON TYPE STRING,
BACTI_TXT TYPE STRING,
ASVTR_TXT TYPE STRING,
AUSVA_TXT TYPE STRING,
LOHNB_TXT TYPE STRING,
SETYP_TXT TYPE STRING,
DNTIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P03_MBGB_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_MBGB_L_STR-MANDT sy-vline 
WA_P03_MBGB_L_STR-PERNR sy-vline 
WA_P03_MBGB_L_STR-BEGDA sy-vline 
WA_P03_MBGB_L_STR-ENDDA sy-vline 
WA_P03_MBGB_L_STR-SEQNR sy-vline 
WA_P03_MBGB_L_STR-READY_SOLL sy-vline 
WA_P03_MBGB_L_STR-SRTZA_SOLL sy-vline 
WA_P03_MBGB_L_STR-SRTZA_MANU sy-vline 
WA_P03_MBGB_L_STR-SETYP_SOLL sy-vline 
WA_P03_MBGB_L_STR-TIMESTAMP sy-vline 
WA_P03_MBGB_L_STR-SETYP sy-vline 
WA_P03_MBGB_L_STR-SRTZA_IST sy-vline 
WA_P03_MBGB_L_STR-SRTZA_ELDA sy-vline 
WA_P03_MBGB_L_STR-SRTZA_ECHO_ELDA sy-vline 
WA_P03_MBGB_L_STR-MANU_MBGM_GUID sy-vline 
WA_P03_MBGB_L_STR-FICO_INPER sy-vline 
WA_P03_MBGB_L_STR-ECHO_UNAME sy-vline 
WA_P03_MBGB_L_STR-ECHO_DATUM sy-vline 
WA_P03_MBGB_L_STR-ECHO_UZEIT sy-vline 
WA_P03_MBGB_L_STR-EPRO2 sy-vline 
WA_P03_MBGB_L_STR-ESVGR sy-vline 
WA_P03_MBGB_L_STR-EUSVA sy-vline 
WA_P03_MBGB_L_STR-WOBD0 sy-vline 
WA_P03_MBGB_L_STR-ZOBD0 sy-vline 
WA_P03_MBGB_L_STR-EDTNR sy-vline 
WA_P03_MBGB_L_STR-ESANR sy-vline 
WA_P03_MBGB_L_STR-REFP0 sy-vline 
WA_P03_MBGB_L_STR-MPKE sy-vline 
WA_P03_MBGB_L_STR-DTRID_SPLIT sy-vline 
WA_P03_MBGB_L_STR-REFN0 sy-vline 
WA_P03_MBGB_L_STR-REFU sy-vline 
WA_P03_MBGB_L_STR-REFV sy-vline 
WA_P03_MBGB_L_STR-VSUM sy-vline 
WA_P03_MBGB_L_STR-VERG sy-vline 
WA_P03_MBGB_L_STR-AUSVL sy-vline 
WA_P03_MBGB_L_STR-AUSVG sy-vline 
WA_P03_MBGB_L_STR-DNNNA sy-vline 
WA_P03_MBGB_L_STR-DNVNA sy-vline 
WA_P03_MBGB_L_STR-INF1 sy-vline 
WA_P03_MBGB_L_STR-INF2 sy-vline 
WA_P03_MBGB_L_STR-GUID sy-vline 
WA_P03_MBGB_L_STR-ASVTR sy-vline 
WA_P03_MBGB_L_STR-SAPZS sy-vline 
WA_P03_MBGB_L_STR-ASVAN sy-vline 
WA_P03_MBGB_L_STR-LOHNB sy-vline 
WA_P03_MBGB_L_STR-DGSV1 sy-vline 
WA_P03_MBGB_L_STR-REFDA sy-vline 
WA_P03_MBGB_L_STR-JAGB sy-vline 
WA_P03_MBGB_L_STR-INPER sy-vline 
WA_P03_MBGB_L_STR-APPL sy-vline 
WA_P03_MBGB_L_STR-DTRID sy-vline 
WA_P03_MBGB_L_STR-GRP_PKT_DTA sy-vline 
WA_P03_MBGB_L_STR-ANKEY_CA sy-vline 
WA_P03_MBGB_L_STR-VSUM_DIFF sy-vline 
WA_P03_MBGB_L_STR-IABKRS sy-vline 
WA_P03_MBGB_L_STR-PAYDT sy-vline 
WA_P03_MBGB_L_STR-ANZPM sy-vline 
WA_P03_MBGB_L_STR-MBGM_SART_BVA sy-vline 
WA_P03_MBGB_L_STR-DGNAM sy-vline 
WA_P03_MBGB_L_STR-LBTEL sy-vline 
WA_P03_MBGB_L_STR-MAIL sy-vline 
WA_P03_MBGB_L_STR-MANU_GRUND sy-vline 
WA_P03_MBGB_L_STR-LINKED_GUID sy-vline 
WA_P03_MBGB_L_STR-UNAME sy-vline 
WA_P03_MBGB_L_STR-DATUM sy-vline 
WA_P03_MBGB_L_STR-UZEIT sy-vline 
WA_P03_MBGB_L_STR-BACTI sy-vline 
WA_P03_MBGB_L_STR-BACTI_ICON sy-vline 
WA_P03_MBGB_L_STR-BACTI_TXT sy-vline 
WA_P03_MBGB_L_STR-ASVTR_TXT sy-vline 
WA_P03_MBGB_L_STR-AUSVA_TXT sy-vline 
WA_P03_MBGB_L_STR-LOHNB_TXT sy-vline 
WA_P03_MBGB_L_STR-SETYP_TXT sy-vline 
WA_P03_MBGB_L_STR-DNTIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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