ABAP Select data from SAP table J_1UF_INV1_S1T_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1UF_INV1_S1T_EXT 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 J_1UF_INV1_S1T_EXT. 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 J_1UF_INV1_S1T_EXT 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_J_1UF_INV1_S1T_EXT TYPE STANDARD TABLE OF J_1UF_INV1_S1T_EXT,
      WA_J_1UF_INV1_S1T_EXT TYPE J_1UF_INV1_S1T_EXT,
      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: <J_1UF_INV1_S1T_EXT> TYPE J_1UF_INV1_S1T_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_INV1_S1T_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_INV1_S1T_EXT
  INTO TABLE IT_J_1UF_INV1_S1T_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_INV1_S1T_EXT
*  INTO TABLE @DATA(IT_J_1UF_INV1_S1T_EXT2).
*--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_J_1UF_INV1_S1T_EXT INDEX 1 INTO DATA(WA_J_1UF_INV1_S1T_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_INV1_S1T_EXT ASSIGNING <J_1UF_INV1_S1T_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_INV1_S1T_EXT>-GR_KEY = 1.
<J_1UF_INV1_S1T_EXT>-ASSET_CLASS = 1.
<J_1UF_INV1_S1T_EXT>-BALANCE_ACC = 1.
<J_1UF_INV1_S1T_EXT>-LOCATION = 1.
<J_1UF_INV1_S1T_EXT>-STRUCT_DIV = 1.

ENDLOOP.

LOOP AT IT_J_1UF_INV1_S1T_EXT INTO WA_J_1UF_INV1_S1T_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_INV1_S1T_EXT-RESPONSIBLE, sy-vline,
  WA_J_1UF_INV1_S1T_EXT-RESP_POSITION, sy-vline,
  WA_J_1UF_INV1_S1T_EXT-N01_SEQ_NUM, sy-vline,
  WA_J_1UF_INV1_S1T_EXT-N02_ASSET_DESC, sy-vline,
  WA_J_1UF_INV1_S1T_EXT-N06_REC_DATE, sy-vline,
  WA_J_1UF_INV1_S1T_EXT-N07_INV_NUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_INV1_S1T_EXT 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_J_1UF_INV1_S1T_EXT 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_J_1UF_INV1_S1T_EXT INTO WA_J_1UF_INV1_S1T_EXT.


*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 ASSET_CLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-ASSET_CLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-ASSET_CLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field N08_PLANT_NUM
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-N08_PLANT_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-N08_PLANT_NUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field N13_VALUE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-N13_VALUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-N13_VALUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field INITIAL_VALUE
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-INITIAL_VALUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-INITIAL_VALUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ACC_DEPRECIATION
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-ACC_DEPRECIATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-ACC_DEPRECIATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ASSETNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-ASSETNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-ASSETNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUBNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-SUBNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-SUBNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_INV1_S1T_EXT-COSTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_INV1_S1T_EXT-COSTC.
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_J_1UF_INV1_S1T_EXT_STR, 
GR_KEY TYPE STRING,
ASSET_CLASS TYPE STRING,
BALANCE_ACC TYPE STRING,
LOCATION TYPE STRING,
STRUCT_DIV TYPE STRING,
RESPONSIBLE TYPE STRING,
RESP_POSITION TYPE STRING,
N01_SEQ_NUM TYPE STRING,
N02_ASSET_DESC TYPE STRING,
N06_REC_DATE TYPE STRING,
N07_INV_NUM TYPE STRING,
N08_PLANT_NUM TYPE STRING,
N09_PASS_NUM TYPE STRING,
N12_QUANT TYPE STRING,
N13_VALUE TYPE STRING,
N14_DEAKT TYPE STRING,
WAERS TYPE STRING,
MEINS TYPE STRING,
ASSET_NAME TYPE STRING,
ASSET_DESCRIPTION TYPE STRING,
ACQUISITION_DATE TYPE STRING,
INITIAL_VALUE TYPE STRING,
USEFUL_LIFE_Y TYPE STRING,
USEFUL_LIFE_P TYPE STRING,
ACC_QUANTITY TYPE STRING,
ACC_DEPRECIATION TYPE STRING,
MSEH3 TYPE STRING,
DATE_AND_MANUF TYPE STRING,
ASSETNUM TYPE STRING,
SUBNUM TYPE STRING,
COSTC TYPE STRING,
INKEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_INV1_S1T_EXT_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_J_1UF_INV1_S1T_EXT_STR-GR_KEY sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ASSET_CLASS sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-BALANCE_ACC sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-LOCATION sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-STRUCT_DIV sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-RESPONSIBLE sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-RESP_POSITION sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N01_SEQ_NUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N02_ASSET_DESC sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N06_REC_DATE sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N07_INV_NUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N08_PLANT_NUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N09_PASS_NUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N12_QUANT sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N13_VALUE sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-N14_DEAKT sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-WAERS sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-MEINS sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ASSET_NAME sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ASSET_DESCRIPTION sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ACQUISITION_DATE sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-INITIAL_VALUE sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-USEFUL_LIFE_Y sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-USEFUL_LIFE_P sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ACC_QUANTITY sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ACC_DEPRECIATION sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-MSEH3 sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-DATE_AND_MANUF sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-ASSETNUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-SUBNUM sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-COSTC sy-vline 
WA_J_1UF_INV1_S1T_EXT_STR-INKEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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