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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/OPTEXPDA
*  INTO TABLE @DATA(IT_/SAPAPO/OPTEXPDA2).
*--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/OPTEXPDA INDEX 1 INTO DATA(WA_/SAPAPO/OPTEXPDA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/OPTEXPDA>-MANDT = 1.
</SAPAPO/OPTEXPDA>-BALHNDL = 1.
</SAPAPO/OPTEXPDA>-EXPDA_NO = 1.
</SAPAPO/OPTEXPDA>-CAT = 1.
</SAPAPO/OPTEXPDA>-ORDER_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/OPTEXPDA-ORDER_NO, sy-vline,
  WA_/SAPAPO/OPTEXPDA-OPERATION_NO, sy-vline,
  WA_/SAPAPO/OPTEXPDA-OPERATION_NAME, sy-vline,
  WA_/SAPAPO/OPTEXPDA-ACTIVITY_GUID, sy-vline,
  WA_/SAPAPO/OPTEXPDA-ACTIVITY_TYPE, sy-vline,
  WA_/SAPAPO/OPTEXPDA-STARTTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/OPTEXPDA 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/OPTEXPDA 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/OPTEXPDA INTO WA_/SAPAPO/OPTEXPDA.


*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 OPTCT, internal->external for field CAT
CALL FUNCTION 'CONVERSION_EXIT_OPTCT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-CAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-CAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTTM, internal->external for field STARTTIME
CALL FUNCTION 'CONVERSION_EXIT_OPTTM_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-STARTTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-STARTTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTDT, internal->external for field STARTDATE
CALL FUNCTION 'CONVERSION_EXIT_OPTDT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-STARTDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-STARTDATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTTM, internal->external for field FINISHTIME
CALL FUNCTION 'CONVERSION_EXIT_OPTTM_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-FINISHTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-FINISHTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTDT, internal->external for field FINISHDATE
CALL FUNCTION 'CONVERSION_EXIT_OPTDT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-FINISHDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-FINISHDATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTMS, internal->external for field DESC_CODE
CALL FUNCTION 'CONVERSION_EXIT_OPTMS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-DESC_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-DESC_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTMS, internal->external for field DESC_CODETXT
CALL FUNCTION 'CONVERSION_EXIT_OPTMS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-DESC_CODETXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-DESC_CODETXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTMS, internal->external for field REASON
CALL FUNCTION 'CONVERSION_EXIT_OPTMS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-REASON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-REASON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTMS, internal->external for field REASON_CODETXT
CALL FUNCTION 'CONVERSION_EXIT_OPTMS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-REASON_CODETXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-REASON_CODETXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTTM, internal->external for field REASON_TIME
CALL FUNCTION 'CONVERSION_EXIT_OPTTM_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-REASON_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-REASON_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OPTDT, internal->external for field REASON_DATE
CALL FUNCTION 'CONVERSION_EXIT_OPTDT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/OPTEXPDA-REASON_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/OPTEXPDA-REASON_DATE.
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/OPTEXPDA_STR, 
MANDT TYPE STRING,
BALHNDL TYPE STRING,
EXPDA_NO TYPE STRING,
CAT TYPE STRING,
ORDER_GUID TYPE STRING,
ORDER_NO TYPE STRING,
OPERATION_NO TYPE STRING,
OPERATION_NAME TYPE STRING,
ACTIVITY_GUID TYPE STRING,
ACTIVITY_TYPE TYPE STRING,
STARTTIME TYPE STRING,
STARTDATE TYPE STRING,
FINISHTIME TYPE STRING,
FINISHDATE TYPE STRING,
DESC_CODE TYPE STRING,
DESC_CODETXT TYPE STRING,
DESC_TXT TYPE STRING,
DESC_ICON TYPE STRING,
CAUSING_RES_GUID TYPE STRING,
CAUSING_RES_NAME TYPE STRING,
REASON TYPE STRING,
REASON_CODETXT TYPE STRING,
REASON_DESC TYPE STRING,
R_DESC_ICON TYPE STRING,
REASON_TIME TYPE STRING,
REASON_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/OPTEXPDA_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/OPTEXPDA_STR-MANDT sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-BALHNDL sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-EXPDA_NO sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-CAT sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-ORDER_GUID sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-ORDER_NO sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-OPERATION_NO sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-OPERATION_NAME sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-ACTIVITY_GUID sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-ACTIVITY_TYPE sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-STARTTIME sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-STARTDATE sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-FINISHTIME sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-FINISHDATE sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-DESC_CODE sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-DESC_CODETXT sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-DESC_TXT sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-DESC_ICON sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-CAUSING_RES_GUID sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-CAUSING_RES_NAME sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-REASON sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-REASON_CODETXT sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-REASON_DESC sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-R_DESC_ICON sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-REASON_TIME sy-vline 
WA_/SAPAPO/OPTEXPDA_STR-REASON_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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