ABAP Select data from SAP table BAPICARMETA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICARMETA
*  INTO TABLE @DATA(IT_BAPICARMETA2).
*--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_BAPICARMETA INDEX 1 INTO DATA(WA_BAPICARMETA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICARMETA>-CARRIER_ID = 1.
<BAPICARMETA>-DATA_TYPE = 1.
<BAPICARMETA>-SD_DOC_CAT = 1.
<BAPICARMETA>-SAVE_RECORD = 1.
<BAPICARMETA>-DATA_LENGTH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICARMETA-CUT_LEFT, sy-vline,
  WA_BAPICARMETA-LABEL_DATA, sy-vline,
  WA_BAPICARMETA-BAPI_CALL, sy-vline,
  WA_BAPICARMETA-FUNCTION_MODUL, sy-vline,
  WA_BAPICARMETA-FUNCTION_MODUL_2, sy-vline,
  WA_BAPICARMETA-MANDATORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICARMETA 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_BAPICARMETA 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_BAPICARMETA INTO WA_BAPICARMETA.


*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_BAPICARMETA_STR, 
CARRIER_ID TYPE STRING,
DATA_TYPE TYPE STRING,
SD_DOC_CAT TYPE STRING,
SAVE_RECORD TYPE STRING,
DATA_LENGTH TYPE STRING,
CUT_LEFT TYPE STRING,
LABEL_DATA TYPE STRING,
BAPI_CALL TYPE STRING,
FUNCTION_MODUL TYPE STRING,
FUNCTION_MODUL_2 TYPE STRING,
MANDATORY TYPE STRING,
QUALIFIER TYPE STRING,
SEQUENCE TYPE STRING,
DEFAULT_FALLBACK TYPE STRING,
EDITPROG TYPE STRING,
EDITSCREEN TYPE STRING,
DEPENDSON_SHIP_TO TYPE STRING,
DEPENDSON_SHIP_POINT TYPE STRING,
REQUERY_ALWAYS TYPE STRING,
SD_DOC_CAT_TOP TYPE STRING,
ACTIVE TYPE STRING,
TRK_REQ_MAX TYPE STRING,
TRK_REQ_TIMEOUT TYPE STRING,
NUMBER_OBJECT TYPE STRING,
NUMBER_RANGE_NR TYPE STRING,
XSIPRTFLD TYPE STRING,
SD_DOC_CAT_LONG TYPE STRING,
SD_DOC_CAT_TOP_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICARMETA_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_BAPICARMETA_STR-CARRIER_ID sy-vline 
WA_BAPICARMETA_STR-DATA_TYPE sy-vline 
WA_BAPICARMETA_STR-SD_DOC_CAT sy-vline 
WA_BAPICARMETA_STR-SAVE_RECORD sy-vline 
WA_BAPICARMETA_STR-DATA_LENGTH sy-vline 
WA_BAPICARMETA_STR-CUT_LEFT sy-vline 
WA_BAPICARMETA_STR-LABEL_DATA sy-vline 
WA_BAPICARMETA_STR-BAPI_CALL sy-vline 
WA_BAPICARMETA_STR-FUNCTION_MODUL sy-vline 
WA_BAPICARMETA_STR-FUNCTION_MODUL_2 sy-vline 
WA_BAPICARMETA_STR-MANDATORY sy-vline 
WA_BAPICARMETA_STR-QUALIFIER sy-vline 
WA_BAPICARMETA_STR-SEQUENCE sy-vline 
WA_BAPICARMETA_STR-DEFAULT_FALLBACK sy-vline 
WA_BAPICARMETA_STR-EDITPROG sy-vline 
WA_BAPICARMETA_STR-EDITSCREEN sy-vline 
WA_BAPICARMETA_STR-DEPENDSON_SHIP_TO sy-vline 
WA_BAPICARMETA_STR-DEPENDSON_SHIP_POINT sy-vline 
WA_BAPICARMETA_STR-REQUERY_ALWAYS sy-vline 
WA_BAPICARMETA_STR-SD_DOC_CAT_TOP sy-vline 
WA_BAPICARMETA_STR-ACTIVE sy-vline 
WA_BAPICARMETA_STR-TRK_REQ_MAX sy-vline 
WA_BAPICARMETA_STR-TRK_REQ_TIMEOUT sy-vline 
WA_BAPICARMETA_STR-NUMBER_OBJECT sy-vline 
WA_BAPICARMETA_STR-NUMBER_RANGE_NR sy-vline 
WA_BAPICARMETA_STR-XSIPRTFLD sy-vline 
WA_BAPICARMETA_STR-SD_DOC_CAT_LONG sy-vline 
WA_BAPICARMETA_STR-SD_DOC_CAT_TOP_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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