ABAP Select data from SAP table OIJTSWINTX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJTSWINTX
*  INTO TABLE @DATA(IT_OIJTSWINTX2).
*--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_OIJTSWINTX INDEX 1 INTO DATA(WA_OIJTSWINTX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJTSWINTX>-CONTRACT_ITEM = 1.
<OIJTSWINTX>-TSWRELV = 1.
<OIJTSWINTX>-REFVBELN = 1.
<OIJTSWINTX>-FROMDATE = 1.
<OIJTSWINTX>-TODATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJTSWINTX-DEALNO, sy-vline,
  WA_OIJTSWINTX-DEALGROUP, sy-vline,
  WA_OIJTSWINTX-DEALTYPE, sy-vline,
  WA_OIJTSWINTX-LOCID, sy-vline,
  WA_OIJTSWINTX-TSYST, sy-vline,
  WA_OIJTSWINTX-PLANLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJTSWINTX 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_OIJTSWINTX 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_OIJTSWINTX INTO WA_OIJTSWINTX.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_OIJTSWINTX_STR, 
CONTRACT_ITEM TYPE STRING,
TSWRELV TYPE STRING,
REFVBELN TYPE STRING,
FROMDATE TYPE STRING,
TODATE TYPE STRING,
DEALNO TYPE STRING,
DEALGROUP TYPE STRING,
DEALTYPE TYPE STRING,
LOCID TYPE STRING,
TSYST TYPE STRING,
PLANLOC TYPE STRING,
EVENTTYPE TYPE STRING,
PR_BASIS TYPE STRING,
RING_TR TYPE STRING,
CO_CARR TYPE STRING,
CO_SHIP TYPE STRING,
ITBOTOL TYPE STRING,
ITBUTOL TYPE STRING,
UNLIMITED TYPE STRING,
DEV_FLAG TYPE STRING,
DEV_MIN TYPE STRING,
DEV_MAX TYPE STRING,
MASS_DEV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJTSWINTX_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_OIJTSWINTX_STR-CONTRACT_ITEM sy-vline 
WA_OIJTSWINTX_STR-TSWRELV sy-vline 
WA_OIJTSWINTX_STR-REFVBELN sy-vline 
WA_OIJTSWINTX_STR-FROMDATE sy-vline 
WA_OIJTSWINTX_STR-TODATE sy-vline 
WA_OIJTSWINTX_STR-DEALNO sy-vline 
WA_OIJTSWINTX_STR-DEALGROUP sy-vline 
WA_OIJTSWINTX_STR-DEALTYPE sy-vline 
WA_OIJTSWINTX_STR-LOCID sy-vline 
WA_OIJTSWINTX_STR-TSYST sy-vline 
WA_OIJTSWINTX_STR-PLANLOC sy-vline 
WA_OIJTSWINTX_STR-EVENTTYPE sy-vline 
WA_OIJTSWINTX_STR-PR_BASIS sy-vline 
WA_OIJTSWINTX_STR-RING_TR sy-vline 
WA_OIJTSWINTX_STR-CO_CARR sy-vline 
WA_OIJTSWINTX_STR-CO_SHIP sy-vline 
WA_OIJTSWINTX_STR-ITBOTOL sy-vline 
WA_OIJTSWINTX_STR-ITBUTOL sy-vline 
WA_OIJTSWINTX_STR-UNLIMITED sy-vline 
WA_OIJTSWINTX_STR-DEV_FLAG sy-vline 
WA_OIJTSWINTX_STR-DEV_MIN sy-vline 
WA_OIJTSWINTX_STR-DEV_MAX sy-vline 
WA_OIJTSWINTX_STR-MASS_DEV sy-vline      INTO ld_text SEPARATED BY SPACE.

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