ABAP Select data from SAP table J_1I_EWT_RETURN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1I_EWT_RETURN 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_1I_EWT_RETURN. 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_1I_EWT_RETURN 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_1I_EWT_RETURN TYPE STANDARD TABLE OF J_1I_EWT_RETURN,
      WA_J_1I_EWT_RETURN TYPE J_1I_EWT_RETURN,
      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_1I_EWT_RETURN> TYPE J_1I_EWT_RETURN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1I_EWT_RETURN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1I_EWT_RETURN
  INTO TABLE IT_J_1I_EWT_RETURN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1I_EWT_RETURN
*  INTO TABLE @DATA(IT_J_1I_EWT_RETURN2).
*--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_1I_EWT_RETURN INDEX 1 INTO DATA(WA_J_1I_EWT_RETURN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1I_EWT_RETURN ASSIGNING <J_1I_EWT_RETURN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1I_EWT_RETURN>-MANDT = 1.
<J_1I_EWT_RETURN>-BUKRS = 1.
<J_1I_EWT_RETURN>-GJAHR = 1.
<J_1I_EWT_RETURN>-BUPLA = 1.
<J_1I_EWT_RETURN>-QSCOD = 1.

ENDLOOP.

LOOP AT IT_J_1I_EWT_RETURN INTO WA_J_1I_EWT_RETURN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1I_EWT_RETURN-CTNUMBER, sy-vline,
  WA_J_1I_EWT_RETURN-BUDAT, sy-vline,
  WA_J_1I_EWT_RETURN-BELNR, sy-vline,
  WA_J_1I_EWT_RETURN-BUZEI, sy-vline,
  WA_J_1I_EWT_RETURN-WITHT, sy-vline,
  WA_J_1I_EWT_RETURN-WT_WITHCD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1I_EWT_RETURN 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_1I_EWT_RETURN 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_1I_EWT_RETURN INTO WA_J_1I_EWT_RETURN.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1I_EWT_RETURN-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1I_EWT_RETURN-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1I_EWT_RETURN-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1I_EWT_RETURN-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WT_QSSHH
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1I_EWT_RETURN-WT_QSSHH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1I_EWT_RETURN-WT_QSSHH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WT_QBSHH
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1I_EWT_RETURN-WT_QBSHH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1I_EWT_RETURN-WT_QBSHH.
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_1I_EWT_RETURN_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BUPLA TYPE STRING,
QSCOD TYPE STRING,
CTNUMBER TYPE STRING,
BUDAT TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
WITHT TYPE STRING,
WT_WITHCD TYPE STRING,
J_1IINTCHLN TYPE STRING,
J_1IINTCHDT TYPE STRING,
QSATZ TYPE STRING,
WT_WTEXMN TYPE STRING,
WT_QSZRT TYPE STRING,
J_1ICERTDT TYPE STRING,
WT_QSSHH TYPE STRING,
WT_QBSHH TYPE STRING,
J_1ISURAMT TYPE STRING,
KOART TYPE STRING,
WT_ACCO TYPE STRING,
QSREC TYPE STRING,
WT_DOWNC TYPE STRING,
J_1IEWTREC TYPE STRING,
J_1IBUZEI TYPE STRING,
J_1IEXTCHLN TYPE STRING,
J_1IEXTCHDT TYPE STRING,
BANKL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1I_EWT_RETURN_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_1I_EWT_RETURN_STR-MANDT sy-vline 
WA_J_1I_EWT_RETURN_STR-BUKRS sy-vline 
WA_J_1I_EWT_RETURN_STR-GJAHR sy-vline 
WA_J_1I_EWT_RETURN_STR-BUPLA sy-vline 
WA_J_1I_EWT_RETURN_STR-QSCOD sy-vline 
WA_J_1I_EWT_RETURN_STR-CTNUMBER sy-vline 
WA_J_1I_EWT_RETURN_STR-BUDAT sy-vline 
WA_J_1I_EWT_RETURN_STR-BELNR sy-vline 
WA_J_1I_EWT_RETURN_STR-BUZEI sy-vline 
WA_J_1I_EWT_RETURN_STR-WITHT sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_WITHCD sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IINTCHLN sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IINTCHDT sy-vline 
WA_J_1I_EWT_RETURN_STR-QSATZ sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_WTEXMN sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_QSZRT sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1ICERTDT sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_QSSHH sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_QBSHH sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1ISURAMT sy-vline 
WA_J_1I_EWT_RETURN_STR-KOART sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_ACCO sy-vline 
WA_J_1I_EWT_RETURN_STR-QSREC sy-vline 
WA_J_1I_EWT_RETURN_STR-WT_DOWNC sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IEWTREC sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IBUZEI sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IEXTCHLN sy-vline 
WA_J_1I_EWT_RETURN_STR-J_1IEXTCHDT sy-vline 
WA_J_1I_EWT_RETURN_STR-BANKL sy-vline      INTO ld_text SEPARATED BY SPACE.

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