ABAP Select data from SAP table /SAPAPO/BWEX_OPERATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/BWEX_OPERATION
*  INTO TABLE @DATA(IT_/SAPAPO/BWEX_OPERATION2).
*--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_/SAPAPO/BWEX_OPERATION INDEX 1 INTO DATA(WA_/SAPAPO/BWEX_OPERATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/BWEX_OPERATION>-VRSIOID = 1.
</SAPAPO/BWEX_OPERATION>-VRSIOEX = 1.
</SAPAPO/BWEX_OPERATION>-MODEL = 1.
</SAPAPO/BWEX_OPERATION>-RESUID = 1.
</SAPAPO/BWEX_OPERATION>-RESNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/BWEX_OPERATION-UNIT, sy-vline,
  WA_/SAPAPO/BWEX_OPERATION-RESTYPE, sy-vline,
  WA_/SAPAPO/BWEX_OPERATION-TYPE, sy-vline,
  WA_/SAPAPO/BWEX_OPERATION-LOCID, sy-vline,
  WA_/SAPAPO/BWEX_OPERATION-LOCNO, sy-vline,
  WA_/SAPAPO/BWEX_OPERATION-LOCTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/BWEX_OPERATION 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_/SAPAPO/BWEX_OPERATION 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_/SAPAPO/BWEX_OPERATION INTO WA_/SAPAPO/BWEX_OPERATION.


*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 VRSIO, internal->external for field VRSIOID
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_OPERATION-VRSIOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_OPERATION-VRSIOID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field PRODUCT_NUM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_OPERATION-PRODUCT_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_OPERATION-PRODUCT_NUM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field TIME_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/BWEX_OPERATION-TIME_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/BWEX_OPERATION-TIME_UNIT.
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_/SAPAPO/BWEX_OPERATION_STR, 
VRSIOID TYPE STRING,
VRSIOEX TYPE STRING,
MODEL TYPE STRING,
RESUID TYPE STRING,
RESNAME TYPE STRING,
UNIT TYPE STRING,
RESTYPE TYPE STRING,
TYPE TYPE STRING,
LOCID TYPE STRING,
LOCNO TYPE STRING,
LOCTYPE TYPE STRING,
ORDERID TYPE STRING,
OPRCOUNTER TYPE STRING,
UPLOADLABEL TYPE STRING,
ORDER_NUM TYPE STRING,
ORDER_FIXED_BW TYPE STRING,
OPR_NUM TYPE STRING,
PRODUCT_NUM TYPE STRING,
OPRQUAN TYPE STRING,
ORIGINALQUAN TYPE STRING,
OPRGUTMENGE TYPE STRING,
YIELDCONF TYPE STRING,
SCRAPCONF TYPE STRING,
EXT_PPM TYPE STRING,
OPRMEINS TYPE STRING,
DATE_START TYPE STRING,
TIME_START TYPE STRING,
DATE_END TYPE STRING,
TIME_END TYPE STRING,
OPR_DURATION TYPE STRING,
OPR_DURATION_NET TYPE STRING,
TIME_UNIT TYPE STRING,
CALDAY TYPE STRING,
UNPLANNED TYPE STRING,
RELEASED TYPE STRING,
DATE_FIXED TYPE STRING,
STARTED TYPE STRING,
PART_CONFIRMED TYPE STRING,
FINAL_CONFIRMED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/BWEX_OPERATION_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_/SAPAPO/BWEX_OPERATION_STR-VRSIOID sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-VRSIOEX sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-MODEL sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-RESUID sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-RESNAME sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-UNIT sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-RESTYPE sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-TYPE sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-LOCID sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-LOCNO sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-LOCTYPE sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-ORDERID sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPRCOUNTER sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-UPLOADLABEL sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-ORDER_NUM sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-ORDER_FIXED_BW sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPR_NUM sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-PRODUCT_NUM sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPRQUAN sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-ORIGINALQUAN sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPRGUTMENGE sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-YIELDCONF sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-SCRAPCONF sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-EXT_PPM sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPRMEINS sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-DATE_START sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-TIME_START sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-DATE_END sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-TIME_END sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPR_DURATION sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-OPR_DURATION_NET sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-TIME_UNIT sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-CALDAY sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-UNPLANNED sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-RELEASED sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-DATE_FIXED sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-STARTED sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-PART_CONFIRMED sy-vline 
WA_/SAPAPO/BWEX_OPERATION_STR-FINAL_CONFIRMED sy-vline      INTO ld_text SEPARATED BY SPACE.

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