ABAP Select data from SAP table TMAWBEVENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TMAWBEVENT
*  INTO TABLE @DATA(IT_TMAWBEVENT2).
*--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_TMAWBEVENT INDEX 1 INTO DATA(WA_TMAWBEVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TMAWBEVENT>-MANDT = 1.
<TMAWBEVENT>-MAWBEVENT = 1.
<TMAWBEVENT>-MATNR = 1.
<TMAWBEVENT>-CHARG = 1.
<TMAWBEVENT>-BWTAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TMAWBEVENT-WERKS, sy-vline,
  WA_TMAWBEVENT-LGORT, sy-vline,
  WA_TMAWBEVENT-BESTQ, sy-vline,
  WA_TMAWBEVENT-SOBKZ, sy-vline,
  WA_TMAWBEVENT-SONUM, sy-vline,
  WA_TMAWBEVENT-GRUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TMAWBEVENT 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_TMAWBEVENT 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_TMAWBEVENT INTO WA_TMAWBEVENT.


*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_TMAWBEVENT_STR, 
MANDT TYPE STRING,
MAWBEVENT TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
BWTAR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
GRUND TYPE STRING,
KONTO TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
UMMAT TYPE STRING,
UMCHA TYPE STRING,
UMWRK TYPE STRING,
UMLGO TYPE STRING,
UMBAR TYPE STRING,
UMBSQ TYPE STRING,
UMSOK TYPE STRING,
LGMNG TYPE STRING,
INSMK TYPE STRING,
GMCONTROL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TMAWBEVENT_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_TMAWBEVENT_STR-MANDT sy-vline 
WA_TMAWBEVENT_STR-MAWBEVENT sy-vline 
WA_TMAWBEVENT_STR-MATNR sy-vline 
WA_TMAWBEVENT_STR-CHARG sy-vline 
WA_TMAWBEVENT_STR-BWTAR sy-vline 
WA_TMAWBEVENT_STR-WERKS sy-vline 
WA_TMAWBEVENT_STR-LGORT sy-vline 
WA_TMAWBEVENT_STR-BESTQ sy-vline 
WA_TMAWBEVENT_STR-SOBKZ sy-vline 
WA_TMAWBEVENT_STR-SONUM sy-vline 
WA_TMAWBEVENT_STR-GRUND sy-vline 
WA_TMAWBEVENT_STR-KONTO sy-vline 
WA_TMAWBEVENT_STR-LIFNR sy-vline 
WA_TMAWBEVENT_STR-KUNNR sy-vline 
WA_TMAWBEVENT_STR-GSBER sy-vline 
WA_TMAWBEVENT_STR-KOSTL sy-vline 
WA_TMAWBEVENT_STR-UMMAT sy-vline 
WA_TMAWBEVENT_STR-UMCHA sy-vline 
WA_TMAWBEVENT_STR-UMWRK sy-vline 
WA_TMAWBEVENT_STR-UMLGO sy-vline 
WA_TMAWBEVENT_STR-UMBAR sy-vline 
WA_TMAWBEVENT_STR-UMBSQ sy-vline 
WA_TMAWBEVENT_STR-UMSOK sy-vline 
WA_TMAWBEVENT_STR-LGMNG sy-vline 
WA_TMAWBEVENT_STR-INSMK sy-vline 
WA_TMAWBEVENT_STR-GMCONTROL sy-vline      INTO ld_text SEPARATED BY SPACE.

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