ABAP Select data from SAP table KCD_PROT_TABLE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KCD_PROT_TABLE
*  INTO TABLE @DATA(IT_KCD_PROT_TABLE2).
*--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_KCD_PROT_TABLE INDEX 1 INTO DATA(WA_KCD_PROT_TABLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KCD_PROT_TABLE>-EXTNUMBER = 1.
<KCD_PROT_TABLE>-EXTNUMBER_SMALL = 1.
<KCD_PROT_TABLE>-LOGNUMBER = 1.
<KCD_PROT_TABLE>-DDIC_PROTNAME = 1.
<KCD_PROT_TABLE>-PROTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KCD_PROT_TABLE-REPID, sy-vline,
  WA_KCD_PROT_TABLE-STATE, sy-vline,
  WA_KCD_PROT_TABLE-STATE_TEXT, sy-vline,
  WA_KCD_PROT_TABLE-TEST_RUN, sy-vline,
  WA_KCD_PROT_TABLE-KORR, sy-vline,
  WA_KCD_PROT_TABLE-APROT_LINE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KCD_PROT_TABLE 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_KCD_PROT_TABLE 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_KCD_PROT_TABLE INTO WA_KCD_PROT_TABLE.


*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_KCD_PROT_TABLE_STR, 
EXTNUMBER TYPE STRING,
EXTNUMBER_SMALL TYPE STRING,
LOGNUMBER TYPE STRING,
DDIC_PROTNAME TYPE STRING,
PROTTYPE TYPE STRING,
REPID TYPE STRING,
STATE TYPE STRING,
STATE_TEXT TYPE STRING,
TEST_RUN TYPE STRING,
KORR TYPE STRING,
APROT_LINE TYPE STRING,
CPROT_LINE TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
USER TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TYP TYPE STRING,
TYPTEXT TYPE STRING,
JOBSTATE TYPE STRING,
PROCESSING TYPE STRING,
WP_NO TYPE STRING,
WP_PID TYPE STRING,
WP_INDEX TYPE STRING,
APP_SERVER TYPE STRING,
FINISHED TYPE STRING,
JOBCOUNT TYPE STRING,
JOBNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KCD_PROT_TABLE_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_KCD_PROT_TABLE_STR-EXTNUMBER sy-vline 
WA_KCD_PROT_TABLE_STR-EXTNUMBER_SMALL sy-vline 
WA_KCD_PROT_TABLE_STR-LOGNUMBER sy-vline 
WA_KCD_PROT_TABLE_STR-DDIC_PROTNAME sy-vline 
WA_KCD_PROT_TABLE_STR-PROTTYPE sy-vline 
WA_KCD_PROT_TABLE_STR-REPID sy-vline 
WA_KCD_PROT_TABLE_STR-STATE sy-vline 
WA_KCD_PROT_TABLE_STR-STATE_TEXT sy-vline 
WA_KCD_PROT_TABLE_STR-TEST_RUN sy-vline 
WA_KCD_PROT_TABLE_STR-KORR sy-vline 
WA_KCD_PROT_TABLE_STR-APROT_LINE sy-vline 
WA_KCD_PROT_TABLE_STR-CPROT_LINE sy-vline 
WA_KCD_PROT_TABLE_STR-DATE sy-vline 
WA_KCD_PROT_TABLE_STR-TIME sy-vline 
WA_KCD_PROT_TABLE_STR-USER sy-vline 
WA_KCD_PROT_TABLE_STR-TEXT1 sy-vline 
WA_KCD_PROT_TABLE_STR-TEXT2 sy-vline 
WA_KCD_PROT_TABLE_STR-TYP sy-vline 
WA_KCD_PROT_TABLE_STR-TYPTEXT sy-vline 
WA_KCD_PROT_TABLE_STR-JOBSTATE sy-vline 
WA_KCD_PROT_TABLE_STR-PROCESSING sy-vline 
WA_KCD_PROT_TABLE_STR-WP_NO sy-vline 
WA_KCD_PROT_TABLE_STR-WP_PID sy-vline 
WA_KCD_PROT_TABLE_STR-WP_INDEX sy-vline 
WA_KCD_PROT_TABLE_STR-APP_SERVER sy-vline 
WA_KCD_PROT_TABLE_STR-FINISHED sy-vline 
WA_KCD_PROT_TABLE_STR-JOBCOUNT sy-vline 
WA_KCD_PROT_TABLE_STR-JOBNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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