ABAP Select data from SAP table ALTOOLRUND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALTOOLRUND
*  INTO TABLE @DATA(IT_ALTOOLRUND2).
*--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_ALTOOLRUND INDEX 1 INTO DATA(WA_ALTOOLRUND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALTOOLRUND>-TOOLNAME = 1.
<ALTOOLRUND>-TOOLSTATUS = 1.
<ALTOOLRUND>-STARTDATE = 1.
<ALTOOLRUND>-STARTTIME = 1.
<ALTOOLRUND>-STARTDUMMY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALTOOLRUND-TOOLDISPAT, sy-vline,
  WA_ALTOOLRUND-MTSYSID, sy-vline,
  WA_ALTOOLRUND-MTMCNAME, sy-vline,
  WA_ALTOOLRUND-MTNUMRANGE, sy-vline,
  WA_ALTOOLRUND-MTUID, sy-vline,
  WA_ALTOOLRUND-MTCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALTOOLRUND 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_ALTOOLRUND 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_ALTOOLRUND INTO WA_ALTOOLRUND.


*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_ALTOOLRUND_STR, 
TOOLNAME TYPE STRING,
TOOLSTATUS TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
STARTDUMMY TYPE STRING,
TOOLDISPAT TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
MTINDEX TYPE STRING,
EXTINDEX TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
DUMMYALIGN TYPE STRING,
WHICHTOOL TYPE STRING,
OWNER TYPE STRING,
TOOLEXEC TYPE STRING,
CALLTYPE TYPE STRING,
EXECDEST TYPE STRING,
DEST_TYPE TYPE STRING,
EXECUSER TYPE STRING,
DEFLTDISP TYPE STRING,
STRTTIDTYP TYPE STRING,
DELAYTIME TYPE STRING,
STARTUPEXE TYPE STRING,
ERRORFLAG TYPE STRING,
PRIORITY TYPE STRING,
RECOVERY TYPE STRING,
CHG_USER TYPE STRING,
CHG_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALTOOLRUND_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_ALTOOLRUND_STR-TOOLNAME sy-vline 
WA_ALTOOLRUND_STR-TOOLSTATUS sy-vline 
WA_ALTOOLRUND_STR-STARTDATE sy-vline 
WA_ALTOOLRUND_STR-STARTTIME sy-vline 
WA_ALTOOLRUND_STR-STARTDUMMY sy-vline 
WA_ALTOOLRUND_STR-TOOLDISPAT sy-vline 
WA_ALTOOLRUND_STR-MTSYSID sy-vline 
WA_ALTOOLRUND_STR-MTMCNAME sy-vline 
WA_ALTOOLRUND_STR-MTNUMRANGE sy-vline 
WA_ALTOOLRUND_STR-MTUID sy-vline 
WA_ALTOOLRUND_STR-MTCLASS sy-vline 
WA_ALTOOLRUND_STR-MTINDEX sy-vline 
WA_ALTOOLRUND_STR-EXTINDEX sy-vline 
WA_ALTOOLRUND_STR-ALSYSID sy-vline 
WA_ALTOOLRUND_STR-MSEGNAME sy-vline 
WA_ALTOOLRUND_STR-ALUNIQNUM sy-vline 
WA_ALTOOLRUND_STR-ALINDEX sy-vline 
WA_ALTOOLRUND_STR-ALERTDATE sy-vline 
WA_ALTOOLRUND_STR-ALERTTIME sy-vline 
WA_ALTOOLRUND_STR-DUMMYALIGN sy-vline 
WA_ALTOOLRUND_STR-WHICHTOOL sy-vline 
WA_ALTOOLRUND_STR-OWNER sy-vline 
WA_ALTOOLRUND_STR-TOOLEXEC sy-vline 
WA_ALTOOLRUND_STR-CALLTYPE sy-vline 
WA_ALTOOLRUND_STR-EXECDEST sy-vline 
WA_ALTOOLRUND_STR-DEST_TYPE sy-vline 
WA_ALTOOLRUND_STR-EXECUSER sy-vline 
WA_ALTOOLRUND_STR-DEFLTDISP sy-vline 
WA_ALTOOLRUND_STR-STRTTIDTYP sy-vline 
WA_ALTOOLRUND_STR-DELAYTIME sy-vline 
WA_ALTOOLRUND_STR-STARTUPEXE sy-vline 
WA_ALTOOLRUND_STR-ERRORFLAG sy-vline 
WA_ALTOOLRUND_STR-PRIORITY sy-vline 
WA_ALTOOLRUND_STR-RECOVERY sy-vline 
WA_ALTOOLRUND_STR-CHG_USER sy-vline 
WA_ALTOOLRUND_STR-CHG_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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