ABAP Select data from SAP table THMEXS_HM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM THMEXS_HM
*  INTO TABLE @DATA(IT_THMEXS_HM2).
*--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_THMEXS_HM INDEX 1 INTO DATA(WA_THMEXS_HM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<THMEXS_HM>-BUKRS = 1.
<THMEXS_HM>-PLANNERID = 1.
<THMEXS_HM>-TEXT = 1.
<THMEXS_HM>-RISKCAT = 1.
<THMEXS_HM>-STARTTERM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_THMEXS_HM-ENDTERM, sy-vline,
  WA_THMEXS_HM-CRUSER, sy-vline,
  WA_THMEXS_HM-CDATE, sy-vline,
  WA_THMEXS_HM-UPUSER, sy-vline,
  WA_THMEXS_HM-UDATE, sy-vline,
  WA_THMEXS_HM-TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_THMEXS_HM 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_THMEXS_HM 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_THMEXS_HM INTO WA_THMEXS_HM.


*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 ALPHA, internal->external for field PLANNERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_THMEXS_HM-PLANNERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THMEXS_HM-PLANNERID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSACTIONID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_THMEXS_HM-TRANSACTIONID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THMEXS_HM-TRANSACTIONID.
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_THMEXS_HM_STR, 
BUKRS TYPE STRING,
PLANNERID TYPE STRING,
TEXT TYPE STRING,
RISKCAT TYPE STRING,
STARTTERM TYPE STRING,
ENDTERM TYPE STRING,
CRUSER TYPE STRING,
CDATE TYPE STRING,
UPUSER TYPE STRING,
UDATE TYPE STRING,
TIME TYPE STRING,
LASTEXPOSUREID TYPE STRING,
RO_FLAG TYPE STRING,
TRANSACTIONID TYPE STRING,
TEXT50 TYPE STRING,
EXPOSUREID TYPE STRING,
TRANSCAT TYPE STRING,
TRANSACTIVITY TYPE STRING,
CREATEDATE TYPE STRING,
TRANSDATE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
VALID_FROM TYPE STRING,
HEDGE_ID TYPE STRING,
INTRATE_REF TYPE STRING,
INTRATE_ADJ TYPE STRING,
INTCALC_START TYPE STRING,
INTCALC_END TYPE STRING,
INTCALC_METHOD TYPE STRING,
INTCALC_TIMEBAS TYPE STRING,
INTCALC_DAYS TYPE STRING,
INTCALC_KALID TYPE STRING,
INTCALC_AMNT TYPE STRING,
INTRATE_FIX TYPE STRING,
INTRATE_SIGN TYPE STRING,
INTRATE_SOFFSET TYPE STRING,
NOMINAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_THMEXS_HM_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_THMEXS_HM_STR-BUKRS sy-vline 
WA_THMEXS_HM_STR-PLANNERID sy-vline 
WA_THMEXS_HM_STR-TEXT sy-vline 
WA_THMEXS_HM_STR-RISKCAT sy-vline 
WA_THMEXS_HM_STR-STARTTERM sy-vline 
WA_THMEXS_HM_STR-ENDTERM sy-vline 
WA_THMEXS_HM_STR-CRUSER sy-vline 
WA_THMEXS_HM_STR-CDATE sy-vline 
WA_THMEXS_HM_STR-UPUSER sy-vline 
WA_THMEXS_HM_STR-UDATE sy-vline 
WA_THMEXS_HM_STR-TIME sy-vline 
WA_THMEXS_HM_STR-LASTEXPOSUREID sy-vline 
WA_THMEXS_HM_STR-RO_FLAG sy-vline 
WA_THMEXS_HM_STR-TRANSACTIONID sy-vline 
WA_THMEXS_HM_STR-TEXT50 sy-vline 
WA_THMEXS_HM_STR-EXPOSUREID sy-vline 
WA_THMEXS_HM_STR-TRANSCAT sy-vline 
WA_THMEXS_HM_STR-TRANSACTIVITY sy-vline 
WA_THMEXS_HM_STR-CREATEDATE sy-vline 
WA_THMEXS_HM_STR-TRANSDATE sy-vline 
WA_THMEXS_HM_STR-AMOUNT sy-vline 
WA_THMEXS_HM_STR-CURRENCY sy-vline 
WA_THMEXS_HM_STR-VALID_FROM sy-vline 
WA_THMEXS_HM_STR-HEDGE_ID sy-vline 
WA_THMEXS_HM_STR-INTRATE_REF sy-vline 
WA_THMEXS_HM_STR-INTRATE_ADJ sy-vline 
WA_THMEXS_HM_STR-INTCALC_START sy-vline 
WA_THMEXS_HM_STR-INTCALC_END sy-vline 
WA_THMEXS_HM_STR-INTCALC_METHOD sy-vline 
WA_THMEXS_HM_STR-INTCALC_TIMEBAS sy-vline 
WA_THMEXS_HM_STR-INTCALC_DAYS sy-vline 
WA_THMEXS_HM_STR-INTCALC_KALID sy-vline 
WA_THMEXS_HM_STR-INTCALC_AMNT sy-vline 
WA_THMEXS_HM_STR-INTRATE_FIX sy-vline 
WA_THMEXS_HM_STR-INTRATE_SIGN sy-vline 
WA_THMEXS_HM_STR-INTRATE_SOFFSET sy-vline 
WA_THMEXS_HM_STR-NOMINAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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