ABAP Select data from SAP table TIV26 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TIV26 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 TIV26. 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 TIV26 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_TIV26 TYPE STANDARD TABLE OF TIV26,
      WA_TIV26 TYPE TIV26,
      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: <TIV26> TYPE TIV26.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TIV26.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TIV26
  INTO TABLE IT_TIV26.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TIV26
*  INTO TABLE @DATA(IT_TIV262).
*--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_TIV26 INDEX 1 INTO DATA(WA_TIV262).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TIV26 ASSIGNING <TIV26>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TIV26>-MANDT = 1.
<TIV26>-SMVART = 1.
<TIV26>-JTYPNUA = 1.
<TIV26>-RECNCAT = 1.
<TIV26>-NRNR = 1.

ENDLOOP.

LOOP AT IT_TIV26 INTO WA_TIV26.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TIV26-FELDSTLST1, sy-vline,
  WA_TIV26-FELDSTLST2, sy-vline,
  WA_TIV26-FELDSTLST3, sy-vline,
  WA_TIV26-JALGVART, sy-vline,
  WA_TIV26-JMULTZUORD, sy-vline,
  WA_TIV26-JNOAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TIV26 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_TIV26 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_TIV26 INTO WA_TIV26.


*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_TIV26_STR, 
MANDT TYPE STRING,
SMVART TYPE STRING,
JTYPNUA TYPE STRING,
RECNCAT TYPE STRING,
NRNR TYPE STRING,
FELDSTLST1 TYPE STRING,
FELDSTLST2 TYPE STRING,
FELDSTLST3 TYPE STRING,
JALGVART TYPE STRING,
JMULTZUORD TYPE STRING,
JNOAREA TYPE STRING,
RECNSRELOB TYPE STRING,
GSART TYPE STRING,
JNOVERTEIL TYPE STRING,
JAUTVERTEIL TYPE STRING,
NRNRVOR TYPE STRING,
ROLETYP TYPE STRING,
VARNR TYPE STRING,
TDOBJECT TYPE STRING,
FELDSTLST4 TYPE STRING,
APPL TYPE STRING,
REMANDAT TYPE STRING,
ROLETYP2 TYPE STRING,
RECNNONOTICE TYPE STRING,
NEWCNTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TIV26_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_TIV26_STR-MANDT sy-vline 
WA_TIV26_STR-SMVART sy-vline 
WA_TIV26_STR-JTYPNUA sy-vline 
WA_TIV26_STR-RECNCAT sy-vline 
WA_TIV26_STR-NRNR sy-vline 
WA_TIV26_STR-FELDSTLST1 sy-vline 
WA_TIV26_STR-FELDSTLST2 sy-vline 
WA_TIV26_STR-FELDSTLST3 sy-vline 
WA_TIV26_STR-JALGVART sy-vline 
WA_TIV26_STR-JMULTZUORD sy-vline 
WA_TIV26_STR-JNOAREA sy-vline 
WA_TIV26_STR-RECNSRELOB sy-vline 
WA_TIV26_STR-GSART sy-vline 
WA_TIV26_STR-JNOVERTEIL sy-vline 
WA_TIV26_STR-JAUTVERTEIL sy-vline 
WA_TIV26_STR-NRNRVOR sy-vline 
WA_TIV26_STR-ROLETYP sy-vline 
WA_TIV26_STR-VARNR sy-vline 
WA_TIV26_STR-TDOBJECT sy-vline 
WA_TIV26_STR-FELDSTLST4 sy-vline 
WA_TIV26_STR-APPL sy-vline 
WA_TIV26_STR-REMANDAT sy-vline 
WA_TIV26_STR-ROLETYP2 sy-vline 
WA_TIV26_STR-RECNNONOTICE sy-vline 
WA_TIV26_STR-NEWCNTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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