ABAP Select data from SAP table LEDSPD_PROT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LEDSPD_PROT 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 LEDSPD_PROT. 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 LEDSPD_PROT 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_LEDSPD_PROT TYPE STANDARD TABLE OF LEDSPD_PROT,
      WA_LEDSPD_PROT TYPE LEDSPD_PROT,
      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: <LEDSPD_PROT> TYPE LEDSPD_PROT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEDSPD_PROT
*  INTO TABLE @DATA(IT_LEDSPD_PROT2).
*--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_LEDSPD_PROT INDEX 1 INTO DATA(WA_LEDSPD_PROT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEDSPD_PROT>-LEVEL = 1.
<LEDSPD_PROT>-VBSK = 1.
<LEDSPD_PROT>-MANDT = 1.
<LEDSPD_PROT>-SAMMG = 1.
<LEDSPD_PROT>-SMART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEDSPD_PROT-ERNAM, sy-vline,
  WA_LEDSPD_PROT-ERDAT, sy-vline,
  WA_LEDSPD_PROT-UZEIT, sy-vline,
  WA_LEDSPD_PROT-VBNUM, sy-vline,
  WA_LEDSPD_PROT-ERNUM, sy-vline,
  WA_LEDSPD_PROT-BRGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEDSPD_PROT 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_LEDSPD_PROT 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_LEDSPD_PROT INTO WA_LEDSPD_PROT.


*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 SAMMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-SAMMG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAMMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-SAMMG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXIDV_HIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-EXIDV_HIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-EXIDV_HIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_NEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDSPD_PROT-VBELN_NEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDSPD_PROT-VBELN_NEW.
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_LEDSPD_PROT_STR, 
LEVEL TYPE STRING,
VBSK TYPE STRING,
MANDT TYPE STRING,
SAMMG TYPE STRING,
SMART TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
UZEIT TYPE STRING,
VBNUM TYPE STRING,
ERNUM TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
VSTEL TYPE STRING,
VTEXT TYPE STRING,
MAXZT TYPE STRING,
PROGRAMM TYPE STRING,
SELSET TYPE STRING,
BATCH TYPE STRING,
ANZLP TYPE STRING,
ANZGP TYPE STRING,
ANZGI TYPE STRING,
KWPRO TYPE STRING,
KAPTP TYPE STRING,
LGNUM TYPE STRING,
BEDAT TYPE STRING,
WRAST TYPE STRING,
COLLECTIVERUN_UUID TYPE STRING,
S_RECORD TYPE STRING,
MANDT TYPE STRING,
SAMMG TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ETENR TYPE STRING,
ZAEHL TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
SMART TYPE STRING,
RECORD TYPE STRING,
HEADER TYPE STRING,
VBSS TYPE STRING,
CNTXT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
RESNO TYPE STRING,
RES_OLD TYPE STRING,
EXIDV_HIGH TYPE STRING,
VBELN_NEW TYPE STRING,
DETECT_CNTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEDSPD_PROT_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_LEDSPD_PROT_STR-LEVEL sy-vline 
WA_LEDSPD_PROT_STR-VBSK sy-vline 
WA_LEDSPD_PROT_STR-MANDT sy-vline 
WA_LEDSPD_PROT_STR-SAMMG sy-vline 
WA_LEDSPD_PROT_STR-SMART sy-vline 
WA_LEDSPD_PROT_STR-ERNAM sy-vline 
WA_LEDSPD_PROT_STR-ERDAT sy-vline 
WA_LEDSPD_PROT_STR-UZEIT sy-vline 
WA_LEDSPD_PROT_STR-VBNUM sy-vline 
WA_LEDSPD_PROT_STR-ERNUM sy-vline 
WA_LEDSPD_PROT_STR-BRGEW sy-vline 
WA_LEDSPD_PROT_STR-GEWEI sy-vline 
WA_LEDSPD_PROT_STR-VOLUM sy-vline 
WA_LEDSPD_PROT_STR-VOLEH sy-vline 
WA_LEDSPD_PROT_STR-VSTEL sy-vline 
WA_LEDSPD_PROT_STR-VTEXT sy-vline 
WA_LEDSPD_PROT_STR-MAXZT sy-vline 
WA_LEDSPD_PROT_STR-PROGRAMM sy-vline 
WA_LEDSPD_PROT_STR-SELSET sy-vline 
WA_LEDSPD_PROT_STR-BATCH sy-vline 
WA_LEDSPD_PROT_STR-ANZLP sy-vline 
WA_LEDSPD_PROT_STR-ANZGP sy-vline 
WA_LEDSPD_PROT_STR-ANZGI sy-vline 
WA_LEDSPD_PROT_STR-KWPRO sy-vline 
WA_LEDSPD_PROT_STR-KAPTP sy-vline 
WA_LEDSPD_PROT_STR-LGNUM sy-vline 
WA_LEDSPD_PROT_STR-BEDAT sy-vline 
WA_LEDSPD_PROT_STR-WRAST sy-vline 
WA_LEDSPD_PROT_STR-COLLECTIVERUN_UUID sy-vline 
WA_LEDSPD_PROT_STR-S_RECORD sy-vline 
WA_LEDSPD_PROT_STR-MANDT sy-vline 
WA_LEDSPD_PROT_STR-SAMMG sy-vline 
WA_LEDSPD_PROT_STR-VBELN sy-vline 
WA_LEDSPD_PROT_STR-POSNR sy-vline 
WA_LEDSPD_PROT_STR-ETENR sy-vline 
WA_LEDSPD_PROT_STR-ZAEHL sy-vline 
WA_LEDSPD_PROT_STR-MSGID sy-vline 
WA_LEDSPD_PROT_STR-MSGNO sy-vline 
WA_LEDSPD_PROT_STR-MSGTY sy-vline 
WA_LEDSPD_PROT_STR-MSGV1 sy-vline 
WA_LEDSPD_PROT_STR-MSGV2 sy-vline 
WA_LEDSPD_PROT_STR-MSGV3 sy-vline 
WA_LEDSPD_PROT_STR-MSGV4 sy-vline 
WA_LEDSPD_PROT_STR-SMART sy-vline 
WA_LEDSPD_PROT_STR-RECORD sy-vline 
WA_LEDSPD_PROT_STR-HEADER sy-vline 
WA_LEDSPD_PROT_STR-VBSS sy-vline 
WA_LEDSPD_PROT_STR-CNTXT sy-vline 
WA_LEDSPD_PROT_STR-VBELN sy-vline 
WA_LEDSPD_PROT_STR-POSNR sy-vline 
WA_LEDSPD_PROT_STR-RESNO sy-vline 
WA_LEDSPD_PROT_STR-RES_OLD sy-vline 
WA_LEDSPD_PROT_STR-EXIDV_HIGH sy-vline 
WA_LEDSPD_PROT_STR-VBELN_NEW sy-vline 
WA_LEDSPD_PROT_STR-DETECT_CNTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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