ABAP Select data from SAP table /SCA/TSKASNI01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCA/TSKASNI01 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 /SCA/TSKASNI01. 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 /SCA/TSKASNI01 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_/SCA/TSKASNI01 TYPE STANDARD TABLE OF /SCA/TSKASNI01,
      WA_/SCA/TSKASNI01 TYPE /SCA/TSKASNI01,
      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: </SCA/TSKASNI01> TYPE /SCA/TSKASNI01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SCA/TSKASNI01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCA/TSKASNI01
  INTO TABLE IT_/SCA/TSKASNI01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCA/TSKASNI01
*  INTO TABLE @DATA(IT_/SCA/TSKASNI012).
*--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_/SCA/TSKASNI01 INDEX 1 INTO DATA(WA_/SCA/TSKASNI012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCA/TSKASNI01 ASSIGNING </SCA/TSKASNI01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCA/TSKASNI01>-MANDT = 1.
</SCA/TSKASNI01>-VRSIOID = 1.
</SCA/TSKASNI01>-KPRM = 1.
</SCA/TSKASNI01>-LOCID = 1.
</SCA/TSKASNI01>-MATID = 1.

ENDLOOP.

LOOP AT IT_/SCA/TSKASNI01 INTO WA_/SCA/TSKASNI01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCA/TSKASNI01-CHOBJ, sy-vline,
  WA_/SCA/TSKASNI01-CLSTID, sy-vline,
  WA_/SCA/TSKASNI01-UNIT, sy-vline,
  WA_/SCA/TSKASNI01-V1, sy-vline,
  WA_/SCA/TSKASNI01-V2, sy-vline,
  WA_/SCA/TSKASNI01-V3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCA/TSKASNI01 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_/SCA/TSKASNI01 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_/SCA/TSKASNI01 INTO WA_/SCA/TSKASNI01.


*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 CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCA/TSKASNI01-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCA/TSKASNI01-UNIT.
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_/SCA/TSKASNI01_STR, 
MANDT TYPE STRING,
VRSIOID TYPE STRING,
KPRM TYPE STRING,
LOCID TYPE STRING,
MATID TYPE STRING,
CHOBJ TYPE STRING,
CLSTID TYPE STRING,
UNIT TYPE STRING,
V1 TYPE STRING,
V2 TYPE STRING,
V3 TYPE STRING,
V4 TYPE STRING,
V5 TYPE STRING,
V6 TYPE STRING,
V7 TYPE STRING,
V8 TYPE STRING,
V9 TYPE STRING,
V10 TYPE STRING,
V11 TYPE STRING,
V12 TYPE STRING,
V13 TYPE STRING,
V14 TYPE STRING,
V15 TYPE STRING,
V16 TYPE STRING,
V17 TYPE STRING,
V18 TYPE STRING,
V19 TYPE STRING,
V20 TYPE STRING,
V21 TYPE STRING,
V22 TYPE STRING,
V23 TYPE STRING,
V24 TYPE STRING,
V25 TYPE STRING,
V26 TYPE STRING,
V27 TYPE STRING,
V28 TYPE STRING,
V29 TYPE STRING,
V30 TYPE STRING,
V31 TYPE STRING,
V32 TYPE STRING,
V33 TYPE STRING,
V34 TYPE STRING,
V35 TYPE STRING,
V36 TYPE STRING,
V37 TYPE STRING,
V38 TYPE STRING,
V39 TYPE STRING,
V40 TYPE STRING,
V41 TYPE STRING,
V42 TYPE STRING,
V43 TYPE STRING,
V44 TYPE STRING,
V45 TYPE STRING,
V46 TYPE STRING,
V47 TYPE STRING,
V48 TYPE STRING,
V49 TYPE STRING,
V50 TYPE STRING,
V51 TYPE STRING,
V52 TYPE STRING,
V53 TYPE STRING,
V54 TYPE STRING,
V55 TYPE STRING,
V56 TYPE STRING,
V57 TYPE STRING,
V58 TYPE STRING,
V59 TYPE STRING,
V60 TYPE STRING,
V61 TYPE STRING,
V62 TYPE STRING,
V63 TYPE STRING,
V64 TYPE STRING,
V65 TYPE STRING,
V66 TYPE STRING,
V67 TYPE STRING,
V68 TYPE STRING,
V69 TYPE STRING,
V70 TYPE STRING,
V71 TYPE STRING,
V72 TYPE STRING,
V73 TYPE STRING,
V74 TYPE STRING,
V75 TYPE STRING,
V76 TYPE STRING,
V77 TYPE STRING,
V78 TYPE STRING,
V79 TYPE STRING,
V80 TYPE STRING,
V81 TYPE STRING,
V82 TYPE STRING,
V83 TYPE STRING,
V84 TYPE STRING,
V85 TYPE STRING,
V86 TYPE STRING,
V87 TYPE STRING,
V88 TYPE STRING,
V89 TYPE STRING,
V90 TYPE STRING,
V91 TYPE STRING,
V92 TYPE STRING,
V93 TYPE STRING,
V94 TYPE STRING,
V95 TYPE STRING,
V96 TYPE STRING,
V97 TYPE STRING,
V98 TYPE STRING,
V99 TYPE STRING,
V100 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCA/TSKASNI01_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_/SCA/TSKASNI01_STR-MANDT sy-vline 
WA_/SCA/TSKASNI01_STR-VRSIOID sy-vline 
WA_/SCA/TSKASNI01_STR-KPRM sy-vline 
WA_/SCA/TSKASNI01_STR-LOCID sy-vline 
WA_/SCA/TSKASNI01_STR-MATID sy-vline 
WA_/SCA/TSKASNI01_STR-CHOBJ sy-vline 
WA_/SCA/TSKASNI01_STR-CLSTID sy-vline 
WA_/SCA/TSKASNI01_STR-UNIT sy-vline 
WA_/SCA/TSKASNI01_STR-V1 sy-vline 
WA_/SCA/TSKASNI01_STR-V2 sy-vline 
WA_/SCA/TSKASNI01_STR-V3 sy-vline 
WA_/SCA/TSKASNI01_STR-V4 sy-vline 
WA_/SCA/TSKASNI01_STR-V5 sy-vline 
WA_/SCA/TSKASNI01_STR-V6 sy-vline 
WA_/SCA/TSKASNI01_STR-V7 sy-vline 
WA_/SCA/TSKASNI01_STR-V8 sy-vline 
WA_/SCA/TSKASNI01_STR-V9 sy-vline 
WA_/SCA/TSKASNI01_STR-V10 sy-vline 
WA_/SCA/TSKASNI01_STR-V11 sy-vline 
WA_/SCA/TSKASNI01_STR-V12 sy-vline 
WA_/SCA/TSKASNI01_STR-V13 sy-vline 
WA_/SCA/TSKASNI01_STR-V14 sy-vline 
WA_/SCA/TSKASNI01_STR-V15 sy-vline 
WA_/SCA/TSKASNI01_STR-V16 sy-vline 
WA_/SCA/TSKASNI01_STR-V17 sy-vline 
WA_/SCA/TSKASNI01_STR-V18 sy-vline 
WA_/SCA/TSKASNI01_STR-V19 sy-vline 
WA_/SCA/TSKASNI01_STR-V20 sy-vline 
WA_/SCA/TSKASNI01_STR-V21 sy-vline 
WA_/SCA/TSKASNI01_STR-V22 sy-vline 
WA_/SCA/TSKASNI01_STR-V23 sy-vline 
WA_/SCA/TSKASNI01_STR-V24 sy-vline 
WA_/SCA/TSKASNI01_STR-V25 sy-vline 
WA_/SCA/TSKASNI01_STR-V26 sy-vline 
WA_/SCA/TSKASNI01_STR-V27 sy-vline 
WA_/SCA/TSKASNI01_STR-V28 sy-vline 
WA_/SCA/TSKASNI01_STR-V29 sy-vline 
WA_/SCA/TSKASNI01_STR-V30 sy-vline 
WA_/SCA/TSKASNI01_STR-V31 sy-vline 
WA_/SCA/TSKASNI01_STR-V32 sy-vline 
WA_/SCA/TSKASNI01_STR-V33 sy-vline 
WA_/SCA/TSKASNI01_STR-V34 sy-vline 
WA_/SCA/TSKASNI01_STR-V35 sy-vline 
WA_/SCA/TSKASNI01_STR-V36 sy-vline 
WA_/SCA/TSKASNI01_STR-V37 sy-vline 
WA_/SCA/TSKASNI01_STR-V38 sy-vline 
WA_/SCA/TSKASNI01_STR-V39 sy-vline 
WA_/SCA/TSKASNI01_STR-V40 sy-vline 
WA_/SCA/TSKASNI01_STR-V41 sy-vline 
WA_/SCA/TSKASNI01_STR-V42 sy-vline 
WA_/SCA/TSKASNI01_STR-V43 sy-vline 
WA_/SCA/TSKASNI01_STR-V44 sy-vline 
WA_/SCA/TSKASNI01_STR-V45 sy-vline 
WA_/SCA/TSKASNI01_STR-V46 sy-vline 
WA_/SCA/TSKASNI01_STR-V47 sy-vline 
WA_/SCA/TSKASNI01_STR-V48 sy-vline 
WA_/SCA/TSKASNI01_STR-V49 sy-vline 
WA_/SCA/TSKASNI01_STR-V50 sy-vline 
WA_/SCA/TSKASNI01_STR-V51 sy-vline 
WA_/SCA/TSKASNI01_STR-V52 sy-vline 
WA_/SCA/TSKASNI01_STR-V53 sy-vline 
WA_/SCA/TSKASNI01_STR-V54 sy-vline 
WA_/SCA/TSKASNI01_STR-V55 sy-vline 
WA_/SCA/TSKASNI01_STR-V56 sy-vline 
WA_/SCA/TSKASNI01_STR-V57 sy-vline 
WA_/SCA/TSKASNI01_STR-V58 sy-vline 
WA_/SCA/TSKASNI01_STR-V59 sy-vline 
WA_/SCA/TSKASNI01_STR-V60 sy-vline 
WA_/SCA/TSKASNI01_STR-V61 sy-vline 
WA_/SCA/TSKASNI01_STR-V62 sy-vline 
WA_/SCA/TSKASNI01_STR-V63 sy-vline 
WA_/SCA/TSKASNI01_STR-V64 sy-vline 
WA_/SCA/TSKASNI01_STR-V65 sy-vline 
WA_/SCA/TSKASNI01_STR-V66 sy-vline 
WA_/SCA/TSKASNI01_STR-V67 sy-vline 
WA_/SCA/TSKASNI01_STR-V68 sy-vline 
WA_/SCA/TSKASNI01_STR-V69 sy-vline 
WA_/SCA/TSKASNI01_STR-V70 sy-vline 
WA_/SCA/TSKASNI01_STR-V71 sy-vline 
WA_/SCA/TSKASNI01_STR-V72 sy-vline 
WA_/SCA/TSKASNI01_STR-V73 sy-vline 
WA_/SCA/TSKASNI01_STR-V74 sy-vline 
WA_/SCA/TSKASNI01_STR-V75 sy-vline 
WA_/SCA/TSKASNI01_STR-V76 sy-vline 
WA_/SCA/TSKASNI01_STR-V77 sy-vline 
WA_/SCA/TSKASNI01_STR-V78 sy-vline 
WA_/SCA/TSKASNI01_STR-V79 sy-vline 
WA_/SCA/TSKASNI01_STR-V80 sy-vline 
WA_/SCA/TSKASNI01_STR-V81 sy-vline 
WA_/SCA/TSKASNI01_STR-V82 sy-vline 
WA_/SCA/TSKASNI01_STR-V83 sy-vline 
WA_/SCA/TSKASNI01_STR-V84 sy-vline 
WA_/SCA/TSKASNI01_STR-V85 sy-vline 
WA_/SCA/TSKASNI01_STR-V86 sy-vline 
WA_/SCA/TSKASNI01_STR-V87 sy-vline 
WA_/SCA/TSKASNI01_STR-V88 sy-vline 
WA_/SCA/TSKASNI01_STR-V89 sy-vline 
WA_/SCA/TSKASNI01_STR-V90 sy-vline 
WA_/SCA/TSKASNI01_STR-V91 sy-vline 
WA_/SCA/TSKASNI01_STR-V92 sy-vline 
WA_/SCA/TSKASNI01_STR-V93 sy-vline 
WA_/SCA/TSKASNI01_STR-V94 sy-vline 
WA_/SCA/TSKASNI01_STR-V95 sy-vline 
WA_/SCA/TSKASNI01_STR-V96 sy-vline 
WA_/SCA/TSKASNI01_STR-V97 sy-vline 
WA_/SCA/TSKASNI01_STR-V98 sy-vline 
WA_/SCA/TSKASNI01_STR-V99 sy-vline 
WA_/SCA/TSKASNI01_STR-V100 sy-vline      INTO ld_text SEPARATED BY SPACE.

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