ABAP Select data from SAP table CLCMLTNOTES 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 CLCMLTNOTES 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 CLCMLTNOTES. 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 CLCMLTNOTES 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_CLCMLTNOTES TYPE STANDARD TABLE OF CLCMLTNOTES,
      WA_CLCMLTNOTES TYPE CLCMLTNOTES,
      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: <CLCMLTNOTES> TYPE CLCMLTNOTES.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLCMLTNOTES
*  INTO TABLE @DATA(IT_CLCMLTNOTES2).
*--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_CLCMLTNOTES INDEX 1 INTO DATA(WA_CLCMLTNOTES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLCMLTNOTES>-MANDT = 1.
<CLCMLTNOTES>-LGLCNTNTMPARAPPLOBJUUID = 1.
<CLCMLTNOTES>-LGLCNTNTMNOTEUUID = 1.
<CLCMLTNOTES>-LGLCNTNTMPARENTNOTEUUID = 1.
<CLCMLTNOTES>-LGLCNTNTMTOPNOTEUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLCMLTNOTES-LGLCNTNTMNOTELVL, sy-vline,
  WA_CLCMLTNOTES-LGLCNTNTMOBJTYPE, sy-vline,
  WA_CLCMLTNOTES-LGLCNTNTMOBJTYPEDESC, sy-vline,
  WA_CLCMLTNOTES-LGLCNTNTMOBJUUID, sy-vline,
  WA_CLCMLTNOTES-LGLCNTNTMOBJECTID, sy-vline,
  WA_CLCMLTNOTES-LGLCNTNTMNOTEREPLYCNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLCMLTNOTES 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_CLCMLTNOTES 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_CLCMLTNOTES INTO WA_CLCMLTNOTES.


*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 LGLCNTNTMPAROBJID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLCMLTNOTES-LGLCNTNTMPAROBJID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLCMLTNOTES-LGLCNTNTMPAROBJID.
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_CLCMLTNOTES_STR, 
MANDT TYPE STRING,
LGLCNTNTMPARAPPLOBJUUID TYPE STRING,
LGLCNTNTMNOTEUUID TYPE STRING,
LGLCNTNTMPARENTNOTEUUID TYPE STRING,
LGLCNTNTMTOPNOTEUUID TYPE STRING,
LGLCNTNTMNOTELVL TYPE STRING,
LGLCNTNTMOBJTYPE TYPE STRING,
LGLCNTNTMOBJTYPEDESC TYPE STRING,
LGLCNTNTMOBJUUID TYPE STRING,
LGLCNTNTMOBJECTID TYPE STRING,
LGLCNTNTMNOTEREPLYCNT TYPE STRING,
LGLCNTNTMNOTESTHREADUTCDTETME TYPE STRING,
LGLCNTNTMSEMANTICOBJECT TYPE STRING,
LGLCNTNTMOBJTITLE TYPE STRING,
LGLCNTNTMPAROBJUUID TYPE STRING,
LGLCNTNTMPAROBJID TYPE STRING,
LGLCNTNTMPAROBJTITLE TYPE STRING,
LGLCNTNTMOBJNODETYPE TYPE STRING,
LGLCNTNTMNOTETYPE TYPE STRING,
MIMETYPE TYPE STRING,
LGLCNTNTMNOTECNTNT TYPE STRING,
LGLCNTNTMCREATEDUTCDATETIME TYPE STRING,
LGLCNTNTMCREATEDBYUSER TYPE STRING,
LGLCNTNTMCHANGEDUTCDATETIME TYPE STRING,
LGLCNTNTMCHANGEDBYUSER TYPE STRING,
LGLCNTNTMCREATEDBYFULLNAME TYPE STRING,
LGLCNTNTMCHANGEDBYFULLNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLCMLTNOTES_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_CLCMLTNOTES_STR-MANDT sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMPARAPPLOBJUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTEUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMPARENTNOTEUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMTOPNOTEUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTELVL sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJTYPE sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJTYPEDESC sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJECTID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTEREPLYCNT sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTESTHREADUTCDTETME sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMSEMANTICOBJECT sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJTITLE sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMPAROBJUUID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMPAROBJID sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMPAROBJTITLE sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMOBJNODETYPE sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTETYPE sy-vline 
WA_CLCMLTNOTES_STR-MIMETYPE sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMNOTECNTNT sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCREATEDUTCDATETIME sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCREATEDBYUSER sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCHANGEDUTCDATETIME sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCHANGEDBYUSER sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCREATEDBYFULLNAME sy-vline 
WA_CLCMLTNOTES_STR-LGLCNTNTMCHANGEDBYFULLNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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