ABAP Select data from SAP table U_37180C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_37180C 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 U_37180C. 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 U_37180C 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_U_37180C TYPE STANDARD TABLE OF U_37180C,
      WA_U_37180C TYPE U_37180C,
      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: <U_37180C> TYPE U_37180C.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_37180C.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_37180C
  INTO TABLE IT_U_37180C.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_37180C
*  INTO TABLE @DATA(IT_U_37180C2).
*--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_U_37180C INDEX 1 INTO DATA(WA_U_37180C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_37180C ASSIGNING <U_37180C>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_37180C>-MANDT = 1.
<U_37180C>-TFORM = 1.
<U_37180C>-SPRAS = 1.
<U_37180C>-TXTSHORT = 1.
<U_37180C>-TXTSING = 1.

ENDLOOP.

LOOP AT IT_U_37180C INTO WA_U_37180C.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_37180C-TXTPLUR, sy-vline,
  WA_U_37180C-TFORMP, sy-vline,
  WA_U_37180C-OBJTYPE, sy-vline,
  WA_U_37180C-OBJTYPETYPE, sy-vline,
  WA_U_37180C-RELATION, sy-vline,
  WA_U_37180C-GENTRAIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_37180C 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_U_37180C 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_U_37180C INTO WA_U_37180C.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_U_37180C-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_37180C-SPRAS.
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_U_37180C_STR, 
MANDT TYPE STRING,
TFORM TYPE STRING,
SPRAS TYPE STRING,
TXTSHORT TYPE STRING,
TXTSING TYPE STRING,
TXTPLUR TYPE STRING,
TFORMP TYPE STRING,
OBJTYPE TYPE STRING,
OBJTYPETYPE TYPE STRING,
RELATION TYPE STRING,
GENTRAIN TYPE STRING,
TYPE TYPE STRING,
SCHEDULE_DEP TYPE STRING,
LOCATION_DEP TYPE STRING,
MEDIA_STORED TYPE STRING,
LA_WRITE TYPE STRING,
TAC_WRITE TYPE STRING,
MASSN TYPE STRING,
CMD_BOOKBE TYPE STRING,
CMD_REBOOKBE TYPE STRING,
CMD_PREBOOKBE TYPE STRING,
CMD_REPLACEBE TYPE STRING,
CMD_CANCELBE TYPE STRING,
CMD_BOOK_LISTBE TYPE STRING,
CMD_PREBK_LSTBE TYPE STRING,
CMD_BK_ATTBE TYPE STRING,
CMD_PREBK_TRNGBE TYPE STRING,
CMD_CREATEBE TYPE STRING,
CMD_CRRP_HISTOBE TYPE STRING,
CMD_FOLLOWUPBE TYPE STRING,
CMD_BOOKFE TYPE STRING,
CMD_REBOOKFE TYPE STRING,
CMD_PREBOOKFE TYPE STRING,
CMD_REPLACEFE TYPE STRING,
CMD_CANCELFE TYPE STRING,
CMD_BOOK_LISTFE TYPE STRING,
CMD_PREBK_LSTFE TYPE STRING,
CMD_BK_ATTFE TYPE STRING,
CMD_PREBK_TRNGFE TYPE STRING,
CMD_CREATEFE TYPE STRING,
CMD_CRRP_HISTOFE TYPE STRING,
CMD_FOLLOWUPFE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_37180C_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_U_37180C_STR-MANDT sy-vline 
WA_U_37180C_STR-TFORM sy-vline 
WA_U_37180C_STR-SPRAS sy-vline 
WA_U_37180C_STR-TXTSHORT sy-vline 
WA_U_37180C_STR-TXTSING sy-vline 
WA_U_37180C_STR-TXTPLUR sy-vline 
WA_U_37180C_STR-TFORMP sy-vline 
WA_U_37180C_STR-OBJTYPE sy-vline 
WA_U_37180C_STR-OBJTYPETYPE sy-vline 
WA_U_37180C_STR-RELATION sy-vline 
WA_U_37180C_STR-GENTRAIN sy-vline 
WA_U_37180C_STR-TYPE sy-vline 
WA_U_37180C_STR-SCHEDULE_DEP sy-vline 
WA_U_37180C_STR-LOCATION_DEP sy-vline 
WA_U_37180C_STR-MEDIA_STORED sy-vline 
WA_U_37180C_STR-LA_WRITE sy-vline 
WA_U_37180C_STR-TAC_WRITE sy-vline 
WA_U_37180C_STR-MASSN sy-vline 
WA_U_37180C_STR-CMD_BOOKBE sy-vline 
WA_U_37180C_STR-CMD_REBOOKBE sy-vline 
WA_U_37180C_STR-CMD_PREBOOKBE sy-vline 
WA_U_37180C_STR-CMD_REPLACEBE sy-vline 
WA_U_37180C_STR-CMD_CANCELBE sy-vline 
WA_U_37180C_STR-CMD_BOOK_LISTBE sy-vline 
WA_U_37180C_STR-CMD_PREBK_LSTBE sy-vline 
WA_U_37180C_STR-CMD_BK_ATTBE sy-vline 
WA_U_37180C_STR-CMD_PREBK_TRNGBE sy-vline 
WA_U_37180C_STR-CMD_CREATEBE sy-vline 
WA_U_37180C_STR-CMD_CRRP_HISTOBE sy-vline 
WA_U_37180C_STR-CMD_FOLLOWUPBE sy-vline 
WA_U_37180C_STR-CMD_BOOKFE sy-vline 
WA_U_37180C_STR-CMD_REBOOKFE sy-vline 
WA_U_37180C_STR-CMD_PREBOOKFE sy-vline 
WA_U_37180C_STR-CMD_REPLACEFE sy-vline 
WA_U_37180C_STR-CMD_CANCELFE sy-vline 
WA_U_37180C_STR-CMD_BOOK_LISTFE sy-vline 
WA_U_37180C_STR-CMD_PREBK_LSTFE sy-vline 
WA_U_37180C_STR-CMD_BK_ATTFE sy-vline 
WA_U_37180C_STR-CMD_PREBK_TRNGFE sy-vline 
WA_U_37180C_STR-CMD_CREATEFE sy-vline 
WA_U_37180C_STR-CMD_CRRP_HISTOFE sy-vline 
WA_U_37180C_STR-CMD_FOLLOWUPFE sy-vline      INTO ld_text SEPARATED BY SPACE.

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