ABAP Select data from SAP table THAEXS_TRANS_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM THAEXS_TRANS_ALV
*  INTO TABLE @DATA(IT_THAEXS_TRANS_ALV2).
*--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_THAEXS_TRANS_ALV INDEX 1 INTO DATA(WA_THAEXS_TRANS_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<THAEXS_TRANS_ALV>-MANDT = 1.
<THAEXS_TRANS_ALV>-BUKRS = 1.
<THAEXS_TRANS_ALV>-PLANNERID = 1.
<THAEXS_TRANS_ALV>-TRANSACTIONID = 1.
<THAEXS_TRANS_ALV>-TEXT50 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_THAEXS_TRANS_ALV-EXPOSUREID, sy-vline,
  WA_THAEXS_TRANS_ALV-TRANSCAT, sy-vline,
  WA_THAEXS_TRANS_ALV-TRANSACTIVITY, sy-vline,
  WA_THAEXS_TRANS_ALV-REFERENCE, sy-vline,
  WA_THAEXS_TRANS_ALV-TRANS_STATUS, sy-vline,
  WA_THAEXS_TRANS_ALV-TRANS_ORIGIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_THAEXS_TRANS_ALV 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_THAEXS_TRANS_ALV 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_THAEXS_TRANS_ALV INTO WA_THAEXS_TRANS_ALV.


*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_THAEXS_TRANS_ALV-PLANNERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THAEXS_TRANS_ALV-PLANNERID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field UNIT_OF_MEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_THAEXS_TRANS_ALV-UNIT_OF_MEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THAEXS_TRANS_ALV-UNIT_OF_MEASURE.
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_THAEXS_TRANS_ALV_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
PLANNERID TYPE STRING,
TRANSACTIONID TYPE STRING,
TEXT50 TYPE STRING,
EXPOSUREID TYPE STRING,
TRANSCAT TYPE STRING,
TRANSACTIVITY TYPE STRING,
REFERENCE TYPE STRING,
TRANS_STATUS TYPE STRING,
TRANS_ORIGIN TYPE STRING,
NEW_TRANSACT TYPE STRING,
CREATEDATE TYPE STRING,
TRANSDATE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
RATE TYPE STRING,
VALID_FROM TYPE STRING,
AMOUNT_NEW 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,
FLG_INT_AMOUNT TYPE STRING,
INTRATE_SOFFSET TYPE STRING,
INTRATE_REGI TYPE STRING,
QUANTITY TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
COMMODITY_ID TYPE STRING,
QUANTITY_NEW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_THAEXS_TRANS_ALV_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_THAEXS_TRANS_ALV_STR-MANDT sy-vline 
WA_THAEXS_TRANS_ALV_STR-BUKRS sy-vline 
WA_THAEXS_TRANS_ALV_STR-PLANNERID sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANSACTIONID sy-vline 
WA_THAEXS_TRANS_ALV_STR-TEXT50 sy-vline 
WA_THAEXS_TRANS_ALV_STR-EXPOSUREID sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANSCAT sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANSACTIVITY sy-vline 
WA_THAEXS_TRANS_ALV_STR-REFERENCE sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANS_STATUS sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANS_ORIGIN sy-vline 
WA_THAEXS_TRANS_ALV_STR-NEW_TRANSACT sy-vline 
WA_THAEXS_TRANS_ALV_STR-CREATEDATE sy-vline 
WA_THAEXS_TRANS_ALV_STR-TRANSDATE sy-vline 
WA_THAEXS_TRANS_ALV_STR-AMOUNT sy-vline 
WA_THAEXS_TRANS_ALV_STR-CURRENCY sy-vline 
WA_THAEXS_TRANS_ALV_STR-RATE sy-vline 
WA_THAEXS_TRANS_ALV_STR-VALID_FROM sy-vline 
WA_THAEXS_TRANS_ALV_STR-AMOUNT_NEW sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_REF sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_ADJ sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_START sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_END sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_METHOD sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_TIMEBAS sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_DAYS sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_KALID sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTCALC_AMNT sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_FIX sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_SIGN sy-vline 
WA_THAEXS_TRANS_ALV_STR-FLG_INT_AMOUNT sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_SOFFSET sy-vline 
WA_THAEXS_TRANS_ALV_STR-INTRATE_REGI sy-vline 
WA_THAEXS_TRANS_ALV_STR-QUANTITY sy-vline 
WA_THAEXS_TRANS_ALV_STR-UNIT_OF_MEASURE sy-vline 
WA_THAEXS_TRANS_ALV_STR-COMMODITY_ID sy-vline 
WA_THAEXS_TRANS_ALV_STR-QUANTITY_NEW sy-vline      INTO ld_text SEPARATED BY SPACE.

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