ABAP Select data from SAP table VEC_S_DYN_TASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEC_S_DYN_TASK
*  INTO TABLE @DATA(IT_VEC_S_DYN_TASK2).
*--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_VEC_S_DYN_TASK INDEX 1 INTO DATA(WA_VEC_S_DYN_TASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEC_S_DYN_TASK>-SCEN_ID = 1.
<VEC_S_DYN_TASK>-TASK_ID = 1.
<VEC_S_DYN_TASK>-TASK_TYPE = 1.
<VEC_S_DYN_TASK>-SHORT_NAME = 1.
<VEC_S_DYN_TASK>-MEDI_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEC_S_DYN_TASK-ASSIGNMENT, sy-vline,
  WA_VEC_S_DYN_TASK-DIMEN, sy-vline,
  WA_VEC_S_DYN_TASK-VERSION_CON, sy-vline,
  WA_VEC_S_DYN_TASK-VERSION, sy-vline,
  WA_VEC_S_DYN_TASK-TASK_UCCS, sy-vline,
  WA_VEC_S_DYN_TASK-PERDEP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEC_S_DYN_TASK 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_VEC_S_DYN_TASK 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_VEC_S_DYN_TASK INTO WA_VEC_S_DYN_TASK.


*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 ALPHA, internal->external for field VERSION_CON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEC_S_DYN_TASK-VERSION_CON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_S_DYN_TASK-VERSION_CON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEC_S_DYN_TASK-VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_S_DYN_TASK-VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field STARTF
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_VEC_S_DYN_TASK-STARTF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_S_DYN_TASK-STARTF.
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_VEC_S_DYN_TASK_STR, 
SCEN_ID TYPE STRING,
TASK_ID TYPE STRING,
TASK_TYPE TYPE STRING,
SHORT_NAME TYPE STRING,
MEDI_NAME TYPE STRING,
ASSIGNMENT TYPE STRING,
DIMEN TYPE STRING,
VERSION_CON TYPE STRING,
VERSION TYPE STRING,
TASK_UCCS TYPE STRING,
PERDEP TYPE STRING,
STARTF TYPE STRING,
REF_TABLE TYPE STRING,
REF_FIELD TYPE STRING,
DIFFERENCE TYPE STRING,
CREATOR TYPE STRING,
CDATE TYPE STRING,
CTIME TYPE STRING,
UPDATOR TYPE STRING,
UDATE TYPE STRING,
UTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEC_S_DYN_TASK_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_VEC_S_DYN_TASK_STR-SCEN_ID sy-vline 
WA_VEC_S_DYN_TASK_STR-TASK_ID sy-vline 
WA_VEC_S_DYN_TASK_STR-TASK_TYPE sy-vline 
WA_VEC_S_DYN_TASK_STR-SHORT_NAME sy-vline 
WA_VEC_S_DYN_TASK_STR-MEDI_NAME sy-vline 
WA_VEC_S_DYN_TASK_STR-ASSIGNMENT sy-vline 
WA_VEC_S_DYN_TASK_STR-DIMEN sy-vline 
WA_VEC_S_DYN_TASK_STR-VERSION_CON sy-vline 
WA_VEC_S_DYN_TASK_STR-VERSION sy-vline 
WA_VEC_S_DYN_TASK_STR-TASK_UCCS sy-vline 
WA_VEC_S_DYN_TASK_STR-PERDEP sy-vline 
WA_VEC_S_DYN_TASK_STR-STARTF sy-vline 
WA_VEC_S_DYN_TASK_STR-REF_TABLE sy-vline 
WA_VEC_S_DYN_TASK_STR-REF_FIELD sy-vline 
WA_VEC_S_DYN_TASK_STR-DIFFERENCE sy-vline 
WA_VEC_S_DYN_TASK_STR-CREATOR sy-vline 
WA_VEC_S_DYN_TASK_STR-CDATE sy-vline 
WA_VEC_S_DYN_TASK_STR-CTIME sy-vline 
WA_VEC_S_DYN_TASK_STR-UPDATOR sy-vline 
WA_VEC_S_DYN_TASK_STR-UDATE sy-vline 
WA_VEC_S_DYN_TASK_STR-UTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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