ABAP Select data from SAP table EDEXTASK_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDEXTASK_ALV 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_ALV. 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_ALV 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_ALV TYPE STANDARD TABLE OF EDEXTASK_ALV,
      WA_EDEXTASK_ALV TYPE EDEXTASK_ALV,
      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_ALV> TYPE EDEXTASK_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDEXTASK_ALV
*  INTO TABLE @DATA(IT_EDEXTASK_ALV2).
*--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_ALV INDEX 1 INTO DATA(WA_EDEXTASK_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDEXTASK_ALV>-DEXTASKID = 1.
<EDEXTASK_ALV>-EXT_UI = 1.
<EDEXTASK_ALV>-INT_UI = 1.
<EDEXTASK_ALV>-DEXPROC = 1.
<EDEXTASK_ALV>-DEXPROCTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDEXTASK_ALV-DEXSERVPROV, sy-vline,
  WA_EDEXTASK_ALV-DEXSERVPROVTXT, sy-vline,
  WA_EDEXTASK_ALV-DEXSERVPROVSELF, sy-vline,
  WA_EDEXTASK_ALV-DEXSERVPROVSELFTXT, sy-vline,
  WA_EDEXTASK_ALV-DEXSTATUS, sy-vline,
  WA_EDEXTASK_ALV-DEXSTATUSTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDEXTASK_ALV 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_ALV 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_ALV INTO WA_EDEXTASK_ALV.


*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_ALV_STR, 
DEXTASKID TYPE STRING,
EXT_UI TYPE STRING,
INT_UI TYPE STRING,
DEXPROC TYPE STRING,
DEXPROCTXT TYPE STRING,
DEXSERVPROV TYPE STRING,
DEXSERVPROVTXT TYPE STRING,
DEXSERVPROVSELF TYPE STRING,
DEXSERVPROVSELFTXT TYPE STRING,
DEXSTATUS TYPE STRING,
DEXSTATUSTXT TYPE STRING,
DEXSIMSTATUSTEXT TYPE STRING,
ERROR TYPE STRING,
CORRECTED TYPE STRING,
DEXDUEDATE TYPE STRING,
DEXDUETIME TYPE STRING,
IDOC TYPE STRING,
IDOC_STATUS TYPE STRING,
DEXICONHIERARCHY TYPE STRING,
REFERENCE TYPE STRING,
WORKITEM 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,
DEXCOMMFORMTEXT TYPE STRING,
CELLTAB TYPE STRING,
DEXMSGCONFSTATE TYPE STRING,
DEXMSGCONFSTATET TYPE STRING,
DEXEXTTASKID TYPE STRING,
DEXESACONFID TYPE STRING,
DEXESAMSGID TYPE STRING,
DEXESACONFIDICON TYPE STRING,
DEXESACONFLOGICON TYPE STRING,
DEXCONFDATE TYPE STRING,
DEXCONFTIME TYPE STRING,
DEXTASKREF TYPE STRING,
DEXTASK_CHECK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDEXTASK_ALV_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_ALV_STR-DEXTASKID sy-vline 
WA_EDEXTASK_ALV_STR-EXT_UI sy-vline 
WA_EDEXTASK_ALV_STR-INT_UI sy-vline 
WA_EDEXTASK_ALV_STR-DEXPROC sy-vline 
WA_EDEXTASK_ALV_STR-DEXPROCTXT sy-vline 
WA_EDEXTASK_ALV_STR-DEXSERVPROV sy-vline 
WA_EDEXTASK_ALV_STR-DEXSERVPROVTXT sy-vline 
WA_EDEXTASK_ALV_STR-DEXSERVPROVSELF sy-vline 
WA_EDEXTASK_ALV_STR-DEXSERVPROVSELFTXT sy-vline 
WA_EDEXTASK_ALV_STR-DEXSTATUS sy-vline 
WA_EDEXTASK_ALV_STR-DEXSTATUSTXT sy-vline 
WA_EDEXTASK_ALV_STR-DEXSIMSTATUSTEXT sy-vline 
WA_EDEXTASK_ALV_STR-ERROR sy-vline 
WA_EDEXTASK_ALV_STR-CORRECTED sy-vline 
WA_EDEXTASK_ALV_STR-DEXDUEDATE sy-vline 
WA_EDEXTASK_ALV_STR-DEXDUETIME sy-vline 
WA_EDEXTASK_ALV_STR-IDOC sy-vline 
WA_EDEXTASK_ALV_STR-IDOC_STATUS sy-vline 
WA_EDEXTASK_ALV_STR-DEXICONHIERARCHY sy-vline 
WA_EDEXTASK_ALV_STR-REFERENCE sy-vline 
WA_EDEXTASK_ALV_STR-WORKITEM sy-vline 
WA_EDEXTASK_ALV_STR-DEXREFDATEFROM sy-vline 
WA_EDEXTASK_ALV_STR-DEXREFTIMEFROM sy-vline 
WA_EDEXTASK_ALV_STR-DEXREFDATETO sy-vline 
WA_EDEXTASK_ALV_STR-DEXREFTIMETO sy-vline 
WA_EDEXTASK_ALV_STR-DEXAEDAT sy-vline 
WA_EDEXTASK_ALV_STR-DEXAETIM sy-vline 
WA_EDEXTASK_ALV_STR-AENAM sy-vline 
WA_EDEXTASK_ALV_STR-DEXCOMMFORMID sy-vline 
WA_EDEXTASK_ALV_STR-DEXCOMMFORMTEXT sy-vline 
WA_EDEXTASK_ALV_STR-CELLTAB sy-vline 
WA_EDEXTASK_ALV_STR-DEXMSGCONFSTATE sy-vline 
WA_EDEXTASK_ALV_STR-DEXMSGCONFSTATET sy-vline 
WA_EDEXTASK_ALV_STR-DEXEXTTASKID sy-vline 
WA_EDEXTASK_ALV_STR-DEXESACONFID sy-vline 
WA_EDEXTASK_ALV_STR-DEXESAMSGID sy-vline 
WA_EDEXTASK_ALV_STR-DEXESACONFIDICON sy-vline 
WA_EDEXTASK_ALV_STR-DEXESACONFLOGICON sy-vline 
WA_EDEXTASK_ALV_STR-DEXCONFDATE sy-vline 
WA_EDEXTASK_ALV_STR-DEXCONFTIME sy-vline 
WA_EDEXTASK_ALV_STR-DEXTASKREF sy-vline 
WA_EDEXTASK_ALV_STR-DEXTASK_CHECK sy-vline      INTO ld_text SEPARATED BY SPACE.

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