ABAP Select data from SAP table ALEGALDOCUMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALEGALDOCUMENT
*  INTO TABLE @DATA(IT_ALEGALDOCUMENT2).
*--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_ALEGALDOCUMENT INDEX 1 INTO DATA(WA_ALEGALDOCUMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALEGALDOCUMENT>-MANDT = 1.
<ALEGALDOCUMENT>-LGLCNTNTMDOCUMENTUUID = 1.
<ALEGALDOCUMENT>-LGLCNTNTMDOCUMENT = 1.
<ALEGALDOCUMENT>-LGLCNTNTMDOCUMENTLINKEDOBJECT = 1.
<ALEGALDOCUMENT>-LGLCNTNTMDOCUMENTLINKEDOBJKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALEGALDOCUMENT-LEGALTRANSACTION, sy-vline,
  WA_ALEGALDOCUMENT-LEGALTRANSACTIONUUID, sy-vline,
  WA_ALEGALDOCUMENT-LGLCNTNTMDOCCONTENTTYPE, sy-vline,
  WA_ALEGALDOCUMENT-LGLCNTNTMLANGUAGE, sy-vline,
  WA_ALEGALDOCUMENT-DOCUMENTDESCRIPTION, sy-vline,
  WA_ALEGALDOCUMENT-LGLCNTNTMDOCACCESSLVL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALEGALDOCUMENT 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_ALEGALDOCUMENT 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_ALEGALDOCUMENT INTO WA_ALEGALDOCUMENT.


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

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

*Conversion exit ISOLA, internal->external for field LGLCNTNTMLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ALEGALDOCUMENT-LGLCNTNTMLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALEGALDOCUMENT-LGLCNTNTMLANGUAGE.
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_ALEGALDOCUMENT_STR, 
MANDT TYPE STRING,
LGLCNTNTMDOCUMENTUUID TYPE STRING,
LGLCNTNTMDOCUMENT TYPE STRING,
LGLCNTNTMDOCUMENTLINKEDOBJECT TYPE STRING,
LGLCNTNTMDOCUMENTLINKEDOBJKEY TYPE STRING,
LEGALTRANSACTION TYPE STRING,
LEGALTRANSACTIONUUID TYPE STRING,
LGLCNTNTMDOCCONTENTTYPE TYPE STRING,
LGLCNTNTMLANGUAGE TYPE STRING,
DOCUMENTDESCRIPTION TYPE STRING,
LGLCNTNTMDOCACCESSLVL TYPE STRING,
LEGALDOCUMENTSOURCE TYPE STRING,
LGLCNTNTMCHANGEDUTCDATETIME TYPE STRING,
LGLCNTNTMCHANGEDBYUSER TYPE STRING,
LGLCNTNTMCREATEDUTCDATETIME TYPE STRING,
LGLCNTNTMCREATEDBYUSER TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
INTERNALDOCUMENTSTATUS TYPE STRING,
LGLCNTNTMPROFILE TYPE STRING,
LGLTRANSACCESSLVL TYPE STRING,
LGLCNTNTMMAINORGCOCODE TYPE STRING,
LGLCNTNTMMAINORGPURORG TYPE STRING,
LGLCNTNTMMAINORGSALESORG TYPE STRING,
LGLCNTNTMDOCUMENTISTOPVERSION TYPE STRING,
LGLCNTNTMVIRTUALDOCVERSKEY TYPE STRING,
LGLCNTNTMDOCASSEMBLYSTATUS TYPE STRING,
LGLCNTNTMTMPLID TYPE STRING,
LGLCNTNTMDOCTYPE TYPE STRING,
LGLCNTNTMDOCLOWTOUCHLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALEGALDOCUMENT_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_ALEGALDOCUMENT_STR-MANDT sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCUMENTUUID sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCUMENT sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCUMENTLINKEDOBJECT sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCUMENTLINKEDOBJKEY sy-vline 
WA_ALEGALDOCUMENT_STR-LEGALTRANSACTION sy-vline 
WA_ALEGALDOCUMENT_STR-LEGALTRANSACTIONUUID sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCCONTENTTYPE sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMLANGUAGE sy-vline 
WA_ALEGALDOCUMENT_STR-DOCUMENTDESCRIPTION sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCACCESSLVL sy-vline 
WA_ALEGALDOCUMENT_STR-LEGALDOCUMENTSOURCE sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMCHANGEDUTCDATETIME sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMCHANGEDBYUSER sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMCREATEDUTCDATETIME sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMCREATEDBYUSER sy-vline 
WA_ALEGALDOCUMENT_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_ALEGALDOCUMENT_STR-INTERNALDOCUMENTSTATUS sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMPROFILE sy-vline 
WA_ALEGALDOCUMENT_STR-LGLTRANSACCESSLVL sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMMAINORGCOCODE sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMMAINORGPURORG sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMMAINORGSALESORG sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCUMENTISTOPVERSION sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMVIRTUALDOCVERSKEY sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCASSEMBLYSTATUS sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMTMPLID sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCTYPE sy-vline 
WA_ALEGALDOCUMENT_STR-LGLCNTNTMDOCLOWTOUCHLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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