ABAP Select data from SAP table IT801X_R into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IT801X_R 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 IT801X_R. 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 IT801X_R 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_IT801X_R TYPE STANDARD TABLE OF IT801X_R,
      WA_IT801X_R TYPE IT801X_R,
      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: <IT801X_R> TYPE IT801X_R.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IT801X_R.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IT801X_R
  INTO TABLE IT_IT801X_R.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IT801X_R
*  INTO TABLE @DATA(IT_IT801X_R2).
*--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_IT801X_R INDEX 1 INTO DATA(WA_IT801X_R2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IT801X_R ASSIGNING <IT801X_R>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IT801X_R>-PAGLN = 1.
<IT801X_R>-PAGWD = 1.
<IT801X_R>-TOPMG = 1.
<IT801X_R>-BOTMG = 1.
<IT801X_R>-RGTMG = 1.

ENDLOOP.

LOOP AT IT_IT801X_R INTO WA_IT801X_R.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IT801X_R-LFTMG, sy-vline,
  WA_IT801X_R-RTITR, sy-vline,
  WA_IT801X_R-COLSS, sy-vline,
  WA_IT801X_R-COLCF, sy-vline,
  WA_IT801X_R-SIGCF, sy-vline,
  WA_IT801X_R-ZEROR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IT801X_R 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_IT801X_R 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_IT801X_R INTO WA_IT801X_R.


*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_IT801X_R_STR, 
PAGLN TYPE STRING,
PAGWD TYPE STRING,
TOPMG TYPE STRING,
BOTMG TYPE STRING,
RGTMG TYPE STRING,
LFTMG TYPE STRING,
RTITR TYPE STRING,
COLSS TYPE STRING,
COLCF TYPE STRING,
SIGCF TYPE STRING,
ZEROR TYPE STRING,
ULTXT TYPE STRING,
ULTYP TYPE STRING,
FIFRST TYPE STRING,
P2TYPE TYPE STRING,
P3TYPE TYPE STRING,
CLPALT TYPE STRING,
PPATT TYPE STRING,
PREOF TYPE STRING,
GTYPE TYPE STRING,
PARMS TYPE STRING,
R_INVAL_S TYPE STRING,
R_INVAL_QUAN TYPE STRING,
DEC_ZERO TYPE STRING,
COLWD TYPE STRING,
COLWD1 TYPE STRING,
COLWD2 TYPE STRING,
COLWD3 TYPE STRING,
COLWD4 TYPE STRING,
COLWD5 TYPE STRING,
UWIDTH0 TYPE STRING,
UWIDTH1 TYPE STRING,
UWIDTH2 TYPE STRING,
UWIDTH3 TYPE STRING,
UWIDTH4 TYPE STRING,
UWIDTH5 TYPE STRING,
COLSP0 TYPE STRING,
COLSP1 TYPE STRING,
COLSP2 TYPE STRING,
COLSP3 TYPE STRING,
COLSP4 TYPE STRING,
COLSP5 TYPE STRING,
SIGN0 TYPE STRING,
SIGN1 TYPE STRING,
SIGN2 TYPE STRING,
SIGN3 TYPE STRING,
SIGN4 TYPE STRING,
SIGN5 TYPE STRING,
ROUND TYPE STRING,
ROUND1 TYPE STRING,
ROUND2 TYPE STRING,
ROUND3 TYPE STRING,
ROUND4 TYPE STRING,
ROUND5 TYPE STRING,
DECIP TYPE STRING,
DECIP1 TYPE STRING,
DECIP2 TYPE STRING,
DECIP3 TYPE STRING,
DECIP4 TYPE STRING,
DECIP5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IT801X_R_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_IT801X_R_STR-PAGLN sy-vline 
WA_IT801X_R_STR-PAGWD sy-vline 
WA_IT801X_R_STR-TOPMG sy-vline 
WA_IT801X_R_STR-BOTMG sy-vline 
WA_IT801X_R_STR-RGTMG sy-vline 
WA_IT801X_R_STR-LFTMG sy-vline 
WA_IT801X_R_STR-RTITR sy-vline 
WA_IT801X_R_STR-COLSS sy-vline 
WA_IT801X_R_STR-COLCF sy-vline 
WA_IT801X_R_STR-SIGCF sy-vline 
WA_IT801X_R_STR-ZEROR sy-vline 
WA_IT801X_R_STR-ULTXT sy-vline 
WA_IT801X_R_STR-ULTYP sy-vline 
WA_IT801X_R_STR-FIFRST sy-vline 
WA_IT801X_R_STR-P2TYPE sy-vline 
WA_IT801X_R_STR-P3TYPE sy-vline 
WA_IT801X_R_STR-CLPALT sy-vline 
WA_IT801X_R_STR-PPATT sy-vline 
WA_IT801X_R_STR-PREOF sy-vline 
WA_IT801X_R_STR-GTYPE sy-vline 
WA_IT801X_R_STR-PARMS sy-vline 
WA_IT801X_R_STR-R_INVAL_S sy-vline 
WA_IT801X_R_STR-R_INVAL_QUAN sy-vline 
WA_IT801X_R_STR-DEC_ZERO sy-vline 
WA_IT801X_R_STR-COLWD sy-vline 
WA_IT801X_R_STR-COLWD1 sy-vline 
WA_IT801X_R_STR-COLWD2 sy-vline 
WA_IT801X_R_STR-COLWD3 sy-vline 
WA_IT801X_R_STR-COLWD4 sy-vline 
WA_IT801X_R_STR-COLWD5 sy-vline 
WA_IT801X_R_STR-UWIDTH0 sy-vline 
WA_IT801X_R_STR-UWIDTH1 sy-vline 
WA_IT801X_R_STR-UWIDTH2 sy-vline 
WA_IT801X_R_STR-UWIDTH3 sy-vline 
WA_IT801X_R_STR-UWIDTH4 sy-vline 
WA_IT801X_R_STR-UWIDTH5 sy-vline 
WA_IT801X_R_STR-COLSP0 sy-vline 
WA_IT801X_R_STR-COLSP1 sy-vline 
WA_IT801X_R_STR-COLSP2 sy-vline 
WA_IT801X_R_STR-COLSP3 sy-vline 
WA_IT801X_R_STR-COLSP4 sy-vline 
WA_IT801X_R_STR-COLSP5 sy-vline 
WA_IT801X_R_STR-SIGN0 sy-vline 
WA_IT801X_R_STR-SIGN1 sy-vline 
WA_IT801X_R_STR-SIGN2 sy-vline 
WA_IT801X_R_STR-SIGN3 sy-vline 
WA_IT801X_R_STR-SIGN4 sy-vline 
WA_IT801X_R_STR-SIGN5 sy-vline 
WA_IT801X_R_STR-ROUND sy-vline 
WA_IT801X_R_STR-ROUND1 sy-vline 
WA_IT801X_R_STR-ROUND2 sy-vline 
WA_IT801X_R_STR-ROUND3 sy-vline 
WA_IT801X_R_STR-ROUND4 sy-vline 
WA_IT801X_R_STR-ROUND5 sy-vline 
WA_IT801X_R_STR-DECIP sy-vline 
WA_IT801X_R_STR-DECIP1 sy-vline 
WA_IT801X_R_STR-DECIP2 sy-vline 
WA_IT801X_R_STR-DECIP3 sy-vline 
WA_IT801X_R_STR-DECIP4 sy-vline 
WA_IT801X_R_STR-DECIP5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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