ABAP Select data from SAP table COD_S_INSTL_REGISTER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COD_S_INSTL_REGISTER
*  INTO TABLE @DATA(IT_COD_S_INSTL_REGISTER2).
*--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_COD_S_INSTL_REGISTER INDEX 1 INTO DATA(WA_COD_S_INSTL_REGISTER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COD_S_INSTL_REGISTER>-SPARTE = 1.
<COD_S_INSTL_REGISTER>-GERAET = 1.
<COD_S_INSTL_REGISTER>-MATNR = 1.
<COD_S_INSTL_REGISTER>-EQUNR = 1.
<COD_S_INSTL_REGISTER>-INT_UI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COD_S_INSTL_REGISTER-EXT_UI, sy-vline,
  WA_COD_S_INSTL_REGISTER-MORE_UI, sy-vline,
  WA_COD_S_INSTL_REGISTER-ZWNUMMER, sy-vline,
  WA_COD_S_INSTL_REGISTER-SPARTYP, sy-vline,
  WA_COD_S_INSTL_REGISTER-ZWKENN, sy-vline,
  WA_COD_S_INSTL_REGISTER-KENNZIFF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COD_S_INSTL_REGISTER 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_COD_S_INSTL_REGISTER 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_COD_S_INSTL_REGISTER INTO WA_COD_S_INSTL_REGISTER.


*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_COD_S_INSTL_REGISTER_STR, 
SPARTE TYPE STRING,
GERAET TYPE STRING,
MATNR TYPE STRING,
EQUNR TYPE STRING,
INT_UI TYPE STRING,
EXT_UI TYPE STRING,
MORE_UI TYPE STRING,
ZWNUMMER TYPE STRING,
SPARTYP TYPE STRING,
ZWKENN TYPE STRING,
KENNZIFF TYPE STRING,
ZWART TYPE STRING,
ZWFAKT TYPE STRING,
STANZVOR TYPE STRING,
STANZNAC TYPE STRING,
ZWTYP TYPE STRING,
BLIWIRK TYPE STRING,
MASSREAD TYPE STRING,
ANZERG TYPE STRING,
KZMESSW TYPE STRING,
UEBERVER TYPE STRING,
STEUERGRP TYPE STRING,
NABLESEN TYPE STRING,
TEMP_AREA TYPE STRING,
PR_AREA_AI TYPE STRING,
CALOR_AREA TYPE STRING,
HOEKORR TYPE STRING,
THGBER TYPE STRING,
KZAHLE TYPE STRING,
KZAHLT TYPE STRING,
GAS_PRS_AR TYPE STRING,
CRGPRESS TYPE STRING,
MARK TYPE STRING,
ERLAUBT TYPE STRING,
INPUT_EADZ TYPE STRING,
THGVER TYPE STRING,
FESTTEMP TYPE STRING,
ZUSZAHLZW TYPE STRING,
PROFEST TYPE STRING,
PROPROZ TYPE STRING,
ZEITRAUM TYPE STRING,
ANLAGE TYPE STRING,
LOGIKZW TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
ZWNABR TYPE STRING,
GVERRECH TYPE STRING,
TARIFART TYPE STRING,
KONDIGR TYPE STRING,
RABZUS TYPE STRING,
PREISKLA TYPE STRING,
ZWNSETTL TYPE STRING,
MESSDRCK TYPE STRING,
NENNBEL TYPE STRING,
TARIFTYP TYPE STRING,
AKLASSE TYPE STRING,
PERVERBRD TYPE STRING,
ANZDAYSOFPERIOD TYPE STRING,
PERVERBR_PROTECTED TYPE STRING,
MASSBILL TYPE STRING,
GEWKEY TYPE STRING,
INTSIZEID TYPE STRING,
PRODUCTLINKEX TYPE STRING,
PRODUCTICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COD_S_INSTL_REGISTER_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_COD_S_INSTL_REGISTER_STR-SPARTE sy-vline 
WA_COD_S_INSTL_REGISTER_STR-GERAET sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MATNR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-EQUNR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-INT_UI sy-vline 
WA_COD_S_INSTL_REGISTER_STR-EXT_UI sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MORE_UI sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWNUMMER sy-vline 
WA_COD_S_INSTL_REGISTER_STR-SPARTYP sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWKENN sy-vline 
WA_COD_S_INSTL_REGISTER_STR-KENNZIFF sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWART sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWFAKT sy-vline 
WA_COD_S_INSTL_REGISTER_STR-STANZVOR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-STANZNAC sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWTYP sy-vline 
WA_COD_S_INSTL_REGISTER_STR-BLIWIRK sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MASSREAD sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ANZERG sy-vline 
WA_COD_S_INSTL_REGISTER_STR-KZMESSW sy-vline 
WA_COD_S_INSTL_REGISTER_STR-UEBERVER sy-vline 
WA_COD_S_INSTL_REGISTER_STR-STEUERGRP sy-vline 
WA_COD_S_INSTL_REGISTER_STR-NABLESEN sy-vline 
WA_COD_S_INSTL_REGISTER_STR-TEMP_AREA sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PR_AREA_AI sy-vline 
WA_COD_S_INSTL_REGISTER_STR-CALOR_AREA sy-vline 
WA_COD_S_INSTL_REGISTER_STR-HOEKORR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-THGBER sy-vline 
WA_COD_S_INSTL_REGISTER_STR-KZAHLE sy-vline 
WA_COD_S_INSTL_REGISTER_STR-KZAHLT sy-vline 
WA_COD_S_INSTL_REGISTER_STR-GAS_PRS_AR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-CRGPRESS sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MARK sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ERLAUBT sy-vline 
WA_COD_S_INSTL_REGISTER_STR-INPUT_EADZ sy-vline 
WA_COD_S_INSTL_REGISTER_STR-THGVER sy-vline 
WA_COD_S_INSTL_REGISTER_STR-FESTTEMP sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZUSZAHLZW sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PROFEST sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PROPROZ sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZEITRAUM sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ANLAGE sy-vline 
WA_COD_S_INSTL_REGISTER_STR-LOGIKZW sy-vline 
WA_COD_S_INSTL_REGISTER_STR-BIS sy-vline 
WA_COD_S_INSTL_REGISTER_STR-AB sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWNABR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-GVERRECH sy-vline 
WA_COD_S_INSTL_REGISTER_STR-TARIFART sy-vline 
WA_COD_S_INSTL_REGISTER_STR-KONDIGR sy-vline 
WA_COD_S_INSTL_REGISTER_STR-RABZUS sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PREISKLA sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ZWNSETTL sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MESSDRCK sy-vline 
WA_COD_S_INSTL_REGISTER_STR-NENNBEL sy-vline 
WA_COD_S_INSTL_REGISTER_STR-TARIFTYP sy-vline 
WA_COD_S_INSTL_REGISTER_STR-AKLASSE sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PERVERBRD sy-vline 
WA_COD_S_INSTL_REGISTER_STR-ANZDAYSOFPERIOD sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PERVERBR_PROTECTED sy-vline 
WA_COD_S_INSTL_REGISTER_STR-MASSBILL sy-vline 
WA_COD_S_INSTL_REGISTER_STR-GEWKEY sy-vline 
WA_COD_S_INSTL_REGISTER_STR-INTSIZEID sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PRODUCTLINKEX sy-vline 
WA_COD_S_INSTL_REGISTER_STR-PRODUCTICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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