ABAP Select data from SAP table CLGLTRSGNDOC 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 CLGLTRSGNDOC 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 CLGLTRSGNDOC. 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 CLGLTRSGNDOC 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_CLGLTRSGNDOC TYPE STANDARD TABLE OF CLGLTRSGNDOC,
      WA_CLGLTRSGNDOC TYPE CLGLTRSGNDOC,
      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: <CLGLTRSGNDOC> TYPE CLGLTRSGNDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLGLTRSGNDOC
*  INTO TABLE @DATA(IT_CLGLTRSGNDOC2).
*--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_CLGLTRSGNDOC INDEX 1 INTO DATA(WA_CLGLTRSGNDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLGLTRSGNDOC>-MANDT = 1.
<CLGLTRSGNDOC>-LGLCNTNTMSIGNATUREDOCUUID = 1.
<CLGLTRSGNDOC>-LGLCNTNTMSIGNATUREGROUPUUID = 1.
<CLGLTRSGNDOC>-LEGALTRANSACTIONUUID = 1.
<CLGLTRSGNDOC>-LGLCNTNTMDOCUMENTUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLGLTRSGNDOC-LGLCNTNTMDOCUMENT, sy-vline,
  WA_CLGLTRSGNDOC-DOCUMENTDESCRIPTION, sy-vline,
  WA_CLGLTRSGNDOC-DOCUMENTVERSION, sy-vline,
  WA_CLGLTRSGNDOC-LEGALDOCUMENTVERSION, sy-vline,
  WA_CLGLTRSGNDOC-LGLCNTNTMDOCUMENTLINKEDOBJKEY, sy-vline,
  WA_CLGLTRSGNDOC-LGLCNTNTMTMPLUUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLGLTRSGNDOC 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_CLGLTRSGNDOC 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_CLGLTRSGNDOC INTO WA_CLGLTRSGNDOC.


*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_CLGLTRSGNDOC-LGLCNTNTMDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLGLTRSGNDOC-LGLCNTNTMDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LEGALDOCUMENTVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLGLTRSGNDOC-LEGALDOCUMENTVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLGLTRSGNDOC-LEGALDOCUMENTVERSION.
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_CLGLTRSGNDOC_STR, 
MANDT TYPE STRING,
LGLCNTNTMSIGNATUREDOCUUID TYPE STRING,
LGLCNTNTMSIGNATUREGROUPUUID TYPE STRING,
LEGALTRANSACTIONUUID TYPE STRING,
LGLCNTNTMDOCUMENTUUID TYPE STRING,
LGLCNTNTMDOCUMENT TYPE STRING,
DOCUMENTDESCRIPTION TYPE STRING,
DOCUMENTVERSION TYPE STRING,
LEGALDOCUMENTVERSION TYPE STRING,
LGLCNTNTMDOCUMENTLINKEDOBJKEY TYPE STRING,
LGLCNTNTMTMPLUUID TYPE STRING,
LGLCNTNTMSGNTRPROCGSTATUS TYPE STRING,
LGLCNTNTMSIGNATUREDOCSTATUS TYPE STRING,
DOCUMENTINFORECORDDOCTYPE TYPE STRING,
DOCUMENTINFORECORDDOCNUMBER TYPE STRING,
DOCUMENTINFORECORDDOCPART TYPE STRING,
DOCUMENTINFORECORDDOCVERSION TYPE STRING,
LOGICALDOCUMENT TYPE STRING,
PHYSICALDOCUMENT TYPE STRING,
LGLCNTNTMDOCUMENTLINKEDOBJECT TYPE STRING,
FILENAME TYPE STRING,
LGLCNTNTMCREATEDBYFULLNAME TYPE STRING,
LGLCNTNTMCREATEDBYUSER TYPE STRING,
LGLCNTNTMCREATEDUTCDATETIME TYPE STRING,
LGLCNTNTMCHANGEDBYFULLNAME TYPE STRING,
LGLCNTNTMCHANGEDBYUSER TYPE STRING,
LGLCNTNTMCHANGEDUTCDATETIME TYPE STRING,
LGLCNTNTMOBJTITLE TYPE STRING,
LGLCNTNTMDOCTEMPLATENAME TYPE STRING,
LGLCNTNTMDOCTEMPLATEVERSION TYPE STRING,
LGLCNTNTMDOCTEMPLATEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLGLTRSGNDOC_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_CLGLTRSGNDOC_STR-MANDT sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMSIGNATUREDOCUUID sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMSIGNATUREGROUPUUID sy-vline 
WA_CLGLTRSGNDOC_STR-LEGALTRANSACTIONUUID sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCUMENTUUID sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCUMENT sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTDESCRIPTION sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTVERSION sy-vline 
WA_CLGLTRSGNDOC_STR-LEGALDOCUMENTVERSION sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCUMENTLINKEDOBJKEY sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMTMPLUUID sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMSGNTRPROCGSTATUS sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMSIGNATUREDOCSTATUS sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTINFORECORDDOCTYPE sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTINFORECORDDOCNUMBER sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTINFORECORDDOCPART sy-vline 
WA_CLGLTRSGNDOC_STR-DOCUMENTINFORECORDDOCVERSION sy-vline 
WA_CLGLTRSGNDOC_STR-LOGICALDOCUMENT sy-vline 
WA_CLGLTRSGNDOC_STR-PHYSICALDOCUMENT sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCUMENTLINKEDOBJECT sy-vline 
WA_CLGLTRSGNDOC_STR-FILENAME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCREATEDBYFULLNAME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCREATEDBYUSER sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCREATEDUTCDATETIME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCHANGEDBYFULLNAME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCHANGEDBYUSER sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMCHANGEDUTCDATETIME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMOBJTITLE sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCTEMPLATENAME sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCTEMPLATEVERSION sy-vline 
WA_CLGLTRSGNDOC_STR-LGLCNTNTMDOCTEMPLATEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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