ABAP Select data from SAP table BIW_ISU_EDEXTASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_ISU_EDEXTASK
*  INTO TABLE @DATA(IT_BIW_ISU_EDEXTASK2).
*--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_BIW_ISU_EDEXTASK INDEX 1 INTO DATA(WA_BIW_ISU_EDEXTASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_ISU_EDEXTASK>-MANDT = 1.
<BIW_ISU_EDEXTASK>-DEXTASKID = 1.
<BIW_ISU_EDEXTASK>-INT_UI = 1.
<BIW_ISU_EDEXTASK>-DEXPROC = 1.
<BIW_ISU_EDEXTASK>-DEXSERVPROV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_ISU_EDEXTASK-DEXSERVPROVSELF, sy-vline,
  WA_BIW_ISU_EDEXTASK-DEXSTATUS, sy-vline,
  WA_BIW_ISU_EDEXTASK-CORRECTED, sy-vline,
  WA_BIW_ISU_EDEXTASK-DEXTASKREASON, sy-vline,
  WA_BIW_ISU_EDEXTASK-DEXDUEDATE, sy-vline,
  WA_BIW_ISU_EDEXTASK-DEXDUETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_ISU_EDEXTASK 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_BIW_ISU_EDEXTASK 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_BIW_ISU_EDEXTASK INTO WA_BIW_ISU_EDEXTASK.


*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_BIW_ISU_EDEXTASK_STR, 
MANDT TYPE STRING,
DEXTASKID TYPE STRING,
INT_UI TYPE STRING,
DEXPROC TYPE STRING,
DEXSERVPROV TYPE STRING,
DEXSERVPROVSELF TYPE STRING,
DEXSTATUS TYPE STRING,
CORRECTED TYPE STRING,
DEXTASKREASON TYPE STRING,
DEXDUEDATE TYPE STRING,
DEXDUETIME TYPE STRING,
DEXREFDATEFROM TYPE STRING,
DEXREFTIMEFROM TYPE STRING,
DEXREFDATETO TYPE STRING,
DEXREFTIMETO TYPE STRING,
DEXAEDAT TYPE STRING,
DEXAETIM TYPE STRING,
AENAM TYPE STRING,
DEXCOMMFORMID TYPE STRING,
DEXTASKID_BW TYPE STRING,
INT_UI_BW TYPE STRING,
DEXCOMMFORMID_BW TYPE STRING,
RODMUPDMOD TYPE STRING,
LOEVM_BW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_ISU_EDEXTASK_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_BIW_ISU_EDEXTASK_STR-MANDT sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXTASKID sy-vline 
WA_BIW_ISU_EDEXTASK_STR-INT_UI sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXPROC sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXSERVPROV sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXSERVPROVSELF sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXSTATUS sy-vline 
WA_BIW_ISU_EDEXTASK_STR-CORRECTED sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXTASKREASON sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXDUEDATE sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXDUETIME sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXREFDATEFROM sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXREFTIMEFROM sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXREFDATETO sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXREFTIMETO sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXAEDAT sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXAETIM sy-vline 
WA_BIW_ISU_EDEXTASK_STR-AENAM sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXCOMMFORMID sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXTASKID_BW sy-vline 
WA_BIW_ISU_EDEXTASK_STR-INT_UI_BW sy-vline 
WA_BIW_ISU_EDEXTASK_STR-DEXCOMMFORMID_BW sy-vline 
WA_BIW_ISU_EDEXTASK_STR-RODMUPDMOD sy-vline 
WA_BIW_ISU_EDEXTASK_STR-LOEVM_BW sy-vline      INTO ld_text SEPARATED BY SPACE.

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