ABAP Select data from SAP table KLSDCPROT3 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 KLSDCPROT3 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 KLSDCPROT3. 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 KLSDCPROT3 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_KLSDCPROT3 TYPE STANDARD TABLE OF KLSDCPROT3,
      WA_KLSDCPROT3 TYPE KLSDCPROT3,
      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: <KLSDCPROT3> TYPE KLSDCPROT3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KLSDCPROT3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KLSDCPROT3
  INTO TABLE IT_KLSDCPROT3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KLSDCPROT3
*  INTO TABLE @DATA(IT_KLSDCPROT32).
*--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_KLSDCPROT3 INDEX 1 INTO DATA(WA_KLSDCPROT32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KLSDCPROT3 ASSIGNING <KLSDCPROT3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KLSDCPROT3>-MANDT = 1.
<KLSDCPROT3>-CALLIDX = 1.
<KLSDCPROT3>-POSIDX = 1.
<KLSDCPROT3>-SLA = 1.
<KLSDCPROT3>-RLV = 1.

ENDLOOP.

LOOP AT IT_KLSDCPROT3 INTO WA_KLSDCPROT3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KLSDCPROT3-SLH, sy-vline,
  WA_KLSDCPROT3-LLOCK, sy-vline,
  WA_KLSDCPROT3-LLUSER, sy-vline,
  WA_KLSDCPROT3-BUKRS, sy-vline,
  WA_KLSDCPROT3-PARTNR, sy-vline,
  WA_KLSDCPROT3-SLPG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KLSDCPROT3 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_KLSDCPROT3 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_KLSDCPROT3 INTO WA_KLSDCPROT3.


*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 ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KLSDCPROT3-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KLSDCPROT3-PARTNR.
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_KLSDCPROT3_STR, 
MANDT TYPE STRING,
CALLIDX TYPE STRING,
POSIDX TYPE STRING,
SLA TYPE STRING,
RLV TYPE STRING,
SLH TYPE STRING,
LLOCK TYPE STRING,
LLUSER TYPE STRING,
BUKRS TYPE STRING,
PARTNR TYPE STRING,
SLPG TYPE STRING,
RPORTB TYPE STRING,
RDEALER TYPE STRING,
WAERS TYPE STRING,
CONTROL01 TYPE STRING,
INTORG TYPE STRING,
RCOUNTRY TYPE STRING,
COUNTRY TYPE STRING,
SECTOR TYPE STRING,
RATING TYPE STRING,
CRATING TYPE STRING,
RCID01 TYPE STRING,
RCID02 TYPE STRING,
RCID03 TYPE STRING,
RCID04 TYPE STRING,
RCID05 TYPE STRING,
RCID06 TYPE STRING,
RCID07 TYPE STRING,
RCID08 TYPE STRING,
RCID09 TYPE STRING,
RCID10 TYPE STRING,
RCID11 TYPE STRING,
RCID12 TYPE STRING,
RCID13 TYPE STRING,
RCID14 TYPE STRING,
RCID15 TYPE STRING,
RESULT_DETAIL TYPE STRING,
DLVB TYPE STRING,
DLVE TYPE STRING,
BLIMIT TYPE STRING,
ELIMIT TYPE STRING,
WLIMIT TYPE STRING,
COMPERD TYPE STRING,
RELTEXT TYPE STRING,
RELSTATE TYPE STRING,
SLI TYPE STRING,
DLI TYPE STRING,
VLI TYPE STRING,
BLI TYPE STRING,
CLI TYPE STRING,
BLS TYPE STRING,
WLI TYPE STRING,
SLP TYPE STRING,
DIFF_I TYPE STRING,
DIFF_E TYPE STRING,
RLI_NEW TYPE STRING,
BLI_NEW TYPE STRING,
CLI_NEW TYPE STRING,
WLI_NEW TYPE STRING,
QLI TYPE STRING,
BLI_OLD TYPE STRING,
CLI_OLD TYPE STRING,
WLI_OLD TYPE STRING,
INFINITE TYPE STRING,
PROZLIMIT TYPE STRING,
TLI TYPE STRING,
OBJNR TYPE STRING,
EDLVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KLSDCPROT3_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_KLSDCPROT3_STR-MANDT sy-vline 
WA_KLSDCPROT3_STR-CALLIDX sy-vline 
WA_KLSDCPROT3_STR-POSIDX sy-vline 
WA_KLSDCPROT3_STR-SLA sy-vline 
WA_KLSDCPROT3_STR-RLV sy-vline 
WA_KLSDCPROT3_STR-SLH sy-vline 
WA_KLSDCPROT3_STR-LLOCK sy-vline 
WA_KLSDCPROT3_STR-LLUSER sy-vline 
WA_KLSDCPROT3_STR-BUKRS sy-vline 
WA_KLSDCPROT3_STR-PARTNR sy-vline 
WA_KLSDCPROT3_STR-SLPG sy-vline 
WA_KLSDCPROT3_STR-RPORTB sy-vline 
WA_KLSDCPROT3_STR-RDEALER sy-vline 
WA_KLSDCPROT3_STR-WAERS sy-vline 
WA_KLSDCPROT3_STR-CONTROL01 sy-vline 
WA_KLSDCPROT3_STR-INTORG sy-vline 
WA_KLSDCPROT3_STR-RCOUNTRY sy-vline 
WA_KLSDCPROT3_STR-COUNTRY sy-vline 
WA_KLSDCPROT3_STR-SECTOR sy-vline 
WA_KLSDCPROT3_STR-RATING sy-vline 
WA_KLSDCPROT3_STR-CRATING sy-vline 
WA_KLSDCPROT3_STR-RCID01 sy-vline 
WA_KLSDCPROT3_STR-RCID02 sy-vline 
WA_KLSDCPROT3_STR-RCID03 sy-vline 
WA_KLSDCPROT3_STR-RCID04 sy-vline 
WA_KLSDCPROT3_STR-RCID05 sy-vline 
WA_KLSDCPROT3_STR-RCID06 sy-vline 
WA_KLSDCPROT3_STR-RCID07 sy-vline 
WA_KLSDCPROT3_STR-RCID08 sy-vline 
WA_KLSDCPROT3_STR-RCID09 sy-vline 
WA_KLSDCPROT3_STR-RCID10 sy-vline 
WA_KLSDCPROT3_STR-RCID11 sy-vline 
WA_KLSDCPROT3_STR-RCID12 sy-vline 
WA_KLSDCPROT3_STR-RCID13 sy-vline 
WA_KLSDCPROT3_STR-RCID14 sy-vline 
WA_KLSDCPROT3_STR-RCID15 sy-vline 
WA_KLSDCPROT3_STR-RESULT_DETAIL sy-vline 
WA_KLSDCPROT3_STR-DLVB sy-vline 
WA_KLSDCPROT3_STR-DLVE sy-vline 
WA_KLSDCPROT3_STR-BLIMIT sy-vline 
WA_KLSDCPROT3_STR-ELIMIT sy-vline 
WA_KLSDCPROT3_STR-WLIMIT sy-vline 
WA_KLSDCPROT3_STR-COMPERD sy-vline 
WA_KLSDCPROT3_STR-RELTEXT sy-vline 
WA_KLSDCPROT3_STR-RELSTATE sy-vline 
WA_KLSDCPROT3_STR-SLI sy-vline 
WA_KLSDCPROT3_STR-DLI sy-vline 
WA_KLSDCPROT3_STR-VLI sy-vline 
WA_KLSDCPROT3_STR-BLI sy-vline 
WA_KLSDCPROT3_STR-CLI sy-vline 
WA_KLSDCPROT3_STR-BLS sy-vline 
WA_KLSDCPROT3_STR-WLI sy-vline 
WA_KLSDCPROT3_STR-SLP sy-vline 
WA_KLSDCPROT3_STR-DIFF_I sy-vline 
WA_KLSDCPROT3_STR-DIFF_E sy-vline 
WA_KLSDCPROT3_STR-RLI_NEW sy-vline 
WA_KLSDCPROT3_STR-BLI_NEW sy-vline 
WA_KLSDCPROT3_STR-CLI_NEW sy-vline 
WA_KLSDCPROT3_STR-WLI_NEW sy-vline 
WA_KLSDCPROT3_STR-QLI sy-vline 
WA_KLSDCPROT3_STR-BLI_OLD sy-vline 
WA_KLSDCPROT3_STR-CLI_OLD sy-vline 
WA_KLSDCPROT3_STR-WLI_OLD sy-vline 
WA_KLSDCPROT3_STR-INFINITE sy-vline 
WA_KLSDCPROT3_STR-PROZLIMIT sy-vline 
WA_KLSDCPROT3_STR-TLI sy-vline 
WA_KLSDCPROT3_STR-OBJNR sy-vline 
WA_KLSDCPROT3_STR-EDLVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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