ABAP Select data from SAP table EDEXTASK_DB_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDEXTASK_DB_DATA
*  INTO TABLE @DATA(IT_EDEXTASK_DB_DATA2).
*--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_EDEXTASK_DB_DATA INDEX 1 INTO DATA(WA_EDEXTASK_DB_DATA2).


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

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

ENDLOOP.

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

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


*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_EDEXTASK_DB_DATA_STR, 
EDEXTASK TYPE STRING,
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,
IEDEXTASKIDOC TYPE STRING,
IEDEXTASKREF TYPE STRING,
IEDEXTASKERROR TYPE STRING,
IEDEXTASKASS TYPE STRING,
IEDEXTASKWKFLOW TYPE STRING,
EDEXTASKID TYPE STRING,
MANDT TYPE STRING,
DEXTASKID TYPE STRING,
DEXEXTTASKID TYPE STRING,
IEDEXTASKESAMSG TYPE STRING,
IEDEXTASKCONFERR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDEXTASK_DB_DATA_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_EDEXTASK_DB_DATA_STR-EDEXTASK sy-vline 
WA_EDEXTASK_DB_DATA_STR-MANDT sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXTASKID sy-vline 
WA_EDEXTASK_DB_DATA_STR-INT_UI sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXPROC sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXSERVPROV sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXSERVPROVSELF sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXSTATUS sy-vline 
WA_EDEXTASK_DB_DATA_STR-CORRECTED sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXTASKREASON sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXDUEDATE sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXDUETIME sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXREFDATEFROM sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXREFTIMEFROM sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXREFDATETO sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXREFTIMETO sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXAEDAT sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXAETIM sy-vline 
WA_EDEXTASK_DB_DATA_STR-AENAM sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXCOMMFORMID sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKIDOC sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKREF sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKERROR sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKASS sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKWKFLOW sy-vline 
WA_EDEXTASK_DB_DATA_STR-EDEXTASKID sy-vline 
WA_EDEXTASK_DB_DATA_STR-MANDT sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXTASKID sy-vline 
WA_EDEXTASK_DB_DATA_STR-DEXEXTTASKID sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKESAMSG sy-vline 
WA_EDEXTASK_DB_DATA_STR-IEDEXTASKCONFERR sy-vline      INTO ld_text SEPARATED BY SPACE.

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