ABAP Select data from SAP table /PRA/TA_ITAXTXN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/TA_ITAXTXN 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 /PRA/TA_ITAXTXN. 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 /PRA/TA_ITAXTXN 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_/PRA/TA_ITAXTXN TYPE STANDARD TABLE OF /PRA/TA_ITAXTXN,
      WA_/PRA/TA_ITAXTXN TYPE /PRA/TA_ITAXTXN,
      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: </PRA/TA_ITAXTXN> TYPE /PRA/TA_ITAXTXN.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/TA_ITAXTXN
  INTO TABLE IT_/PRA/TA_ITAXTXN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/TA_ITAXTXN
*  INTO TABLE @DATA(IT_/PRA/TA_ITAXTXN2).
*--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_/PRA/TA_ITAXTXN INDEX 1 INTO DATA(WA_/PRA/TA_ITAXTXN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/TA_ITAXTXN ASSIGNING </PRA/TA_ITAXTXN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/TA_ITAXTXN>-MANDT = 1.
</PRA/TA_ITAXTXN>-BUKRS = 1.
</PRA/TA_ITAXTXN>-SALES_DT = 1.
</PRA/TA_ITAXTXN>-PDCD = 1.
</PRA/TA_ITAXTXN>-WL_NO = 1.

ENDLOOP.

LOOP AT IT_/PRA/TA_ITAXTXN INTO WA_/PRA/TA_ITAXTXN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/TA_ITAXTXN-WC_NO, sy-vline,
  WA_/PRA/TA_ITAXTXN-MP_NO, sy-vline,
  WA_/PRA/TA_ITAXTXN-VNAME, sy-vline,
  WA_/PRA/TA_ITAXTXN-DOI_NO, sy-vline,
  WA_/PRA/TA_ITAXTXN-DN_NO, sy-vline,
  WA_/PRA/TA_ITAXTXN-CT_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/TA_ITAXTXN 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_/PRA/TA_ITAXTXN 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_/PRA/TA_ITAXTXN INTO WA_/PRA/TA_ITAXTXN.


*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 WL_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/TA_ITAXTXN-WL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/TA_ITAXTXN-WL_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/TA_ITAXTXN-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/TA_ITAXTXN-UOM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/TA_ITAXTXN-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/TA_ITAXTXN-DOC_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHANGE_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/TA_ITAXTXN-CHANGE_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/TA_ITAXTXN-CHANGE_TIMESTAMP.
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_/PRA/TA_ITAXTXN_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SALES_DT TYPE STRING,
PDCD TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
MP_NO TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
DN_NO TYPE STRING,
CT_NO TYPE STRING,
VL_TYPE_CD TYPE STRING,
OWNER_IDENTIFIER TYPE STRING,
REV_BOOK_ADJ_IND TYPE STRING,
ACCT_PERD TYPE STRING,
UNIT_VNAME TYPE STRING,
SAKNR TYPE STRING,
KOSTL TYPE STRING,
UOM TYPE STRING,
EXEMPT_FLAG TYPE STRING,
DOC_NO TYPE STRING,
DOC_YEAR TYPE STRING,
OPTION1 TYPE STRING,
OPTION2 TYPE STRING,
OPTION3 TYPE STRING,
OOS_FL TYPE STRING,
INTERFACE_FL TYPE STRING,
OWNERSHIP_PERC TYPE STRING,
REV_PRCS_CD TYPE STRING,
REJ_SUSP_IND TYPE STRING,
REJ_CD TYPE STRING,
TRANS_AM TYPE STRING,
TRANS_QY TYPE STRING,
PVR_AM TYPE STRING,
MKT_AMT_1 TYPE STRING,
MKT_AMT_2 TYPE STRING,
MKT_AMT_3 TYPE STRING,
MKT_AMT_4 TYPE STRING,
MKT_AMT_5 TYPE STRING,
MKT_AMT_6 TYPE STRING,
MKT_AMT_7 TYPE STRING,
MKT_AMT_8 TYPE STRING,
MKT_AMT_9 TYPE STRING,
MKT_AMT_10 TYPE STRING,
AV_TAX_AMT TYPE STRING,
TOTAL_VOLUME TYPE STRING,
TRANSPORTATION TYPE STRING,
PROC_MANU TYPE STRING,
CO_ACCT_NO TYPE STRING,
OIL_GAS_IND TYPE STRING,
SOURCE TYPE STRING,
API_NUMBER TYPE STRING,
INT_CAT_CD TYPE STRING,
REFERENCE_RUN_ID TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/TA_ITAXTXN_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_/PRA/TA_ITAXTXN_STR-MANDT sy-vline 
WA_/PRA/TA_ITAXTXN_STR-BUKRS sy-vline 
WA_/PRA/TA_ITAXTXN_STR-SALES_DT sy-vline 
WA_/PRA/TA_ITAXTXN_STR-PDCD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-WL_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-WC_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MP_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-VNAME sy-vline 
WA_/PRA/TA_ITAXTXN_STR-DOI_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-DN_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-CT_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-VL_TYPE_CD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OWNER_IDENTIFIER sy-vline 
WA_/PRA/TA_ITAXTXN_STR-REV_BOOK_ADJ_IND sy-vline 
WA_/PRA/TA_ITAXTXN_STR-ACCT_PERD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-UNIT_VNAME sy-vline 
WA_/PRA/TA_ITAXTXN_STR-SAKNR sy-vline 
WA_/PRA/TA_ITAXTXN_STR-KOSTL sy-vline 
WA_/PRA/TA_ITAXTXN_STR-UOM sy-vline 
WA_/PRA/TA_ITAXTXN_STR-EXEMPT_FLAG sy-vline 
WA_/PRA/TA_ITAXTXN_STR-DOC_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-DOC_YEAR sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OPTION1 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OPTION2 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OPTION3 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OOS_FL sy-vline 
WA_/PRA/TA_ITAXTXN_STR-INTERFACE_FL sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OWNERSHIP_PERC sy-vline 
WA_/PRA/TA_ITAXTXN_STR-REV_PRCS_CD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-REJ_SUSP_IND sy-vline 
WA_/PRA/TA_ITAXTXN_STR-REJ_CD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-TRANS_AM sy-vline 
WA_/PRA/TA_ITAXTXN_STR-TRANS_QY sy-vline 
WA_/PRA/TA_ITAXTXN_STR-PVR_AM sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_1 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_2 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_3 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_4 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_5 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_6 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_7 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_8 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_9 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-MKT_AMT_10 sy-vline 
WA_/PRA/TA_ITAXTXN_STR-AV_TAX_AMT sy-vline 
WA_/PRA/TA_ITAXTXN_STR-TOTAL_VOLUME sy-vline 
WA_/PRA/TA_ITAXTXN_STR-TRANSPORTATION sy-vline 
WA_/PRA/TA_ITAXTXN_STR-PROC_MANU sy-vline 
WA_/PRA/TA_ITAXTXN_STR-CO_ACCT_NO sy-vline 
WA_/PRA/TA_ITAXTXN_STR-OIL_GAS_IND sy-vline 
WA_/PRA/TA_ITAXTXN_STR-SOURCE sy-vline 
WA_/PRA/TA_ITAXTXN_STR-API_NUMBER sy-vline 
WA_/PRA/TA_ITAXTXN_STR-INT_CAT_CD sy-vline 
WA_/PRA/TA_ITAXTXN_STR-REFERENCE_RUN_ID sy-vline 
WA_/PRA/TA_ITAXTXN_STR-CHANGE_USER sy-vline 
WA_/PRA/TA_ITAXTXN_STR-CHANGE_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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