ABAP Select data from SAP table CLCMAVTMTOFNLDOC 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 CLCMAVTMTOFNLDOC 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 CLCMAVTMTOFNLDOC. 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 CLCMAVTMTOFNLDOC 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_CLCMAVTMTOFNLDOC TYPE STANDARD TABLE OF CLCMAVTMTOFNLDOC,
      WA_CLCMAVTMTOFNLDOC TYPE CLCMAVTMTOFNLDOC,
      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: <CLCMAVTMTOFNLDOC> TYPE CLCMAVTMTOFNLDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLCMAVTMTOFNLDOC
*  INTO TABLE @DATA(IT_CLCMAVTMTOFNLDOC2).
*--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_CLCMAVTMTOFNLDOC INDEX 1 INTO DATA(WA_CLCMAVTMTOFNLDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLCMAVTMTOFNLDOC>-MANDT = 1.
<CLCMAVTMTOFNLDOC>-LGLCNTNTMDOCUMENTUUID = 1.
<CLCMAVTMTOFNLDOC>-LGLCNTNTMAVGNMBROFDAYS = 1.
<CLCMAVTMTOFNLDOC>-LGLCNTNTMCALENDARQUARTER = 1.
<CLCMAVTMTOFNLDOC>-CALENDARYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLCMAVTMTOFNLDOC-CURRENTYEAR, sy-vline,
  WA_CLCMAVTMTOFNLDOC-ISENDOFPURPOSEBLOCKED, sy-vline,
  WA_CLCMAVTMTOFNLDOC-LEGALTRANSACTION, sy-vline,
  WA_CLCMAVTMTOFNLDOC-LEGALCONTEXT, sy-vline,
  WA_CLCMAVTMTOFNLDOC-LGLCNTNTMCONTEXTVERSION, sy-vline,
  WA_CLCMAVTMTOFNLDOC-LGLCNTNTMPROFILE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLCMAVTMTOFNLDOC 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_CLCMAVTMTOFNLDOC 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_CLCMAVTMTOFNLDOC INTO WA_CLCMAVTMTOFNLDOC.


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

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

*Conversion exit ALPHA, internal->external for field LGLCNTNTMCONTEXTVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLCMAVTMTOFNLDOC-LGLCNTNTMCONTEXTVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLCMAVTMTOFNLDOC-LGLCNTNTMCONTEXTVERSION.
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_CLCMAVTMTOFNLDOC_STR, 
MANDT TYPE STRING,
LGLCNTNTMDOCUMENTUUID TYPE STRING,
LGLCNTNTMAVGNMBROFDAYS TYPE STRING,
LGLCNTNTMCALENDARQUARTER TYPE STRING,
CALENDARYEAR TYPE STRING,
CURRENTYEAR TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
LEGALTRANSACTION TYPE STRING,
LEGALCONTEXT TYPE STRING,
LGLCNTNTMCONTEXTVERSION TYPE STRING,
LGLCNTNTMPROFILE TYPE STRING,
LGLCNTNTMENTITY TYPE STRING,
LGLCNTNTMCREATEDUTCDATETIME TYPE STRING,
INTERNALDOCUMENTSTATUS TYPE STRING,
LGLCNTNTMDOCCONTENTTYPE TYPE STRING,
LEGALTRANSACTIONUUID TYPE STRING,
LGLCNTNTMDOCACCESSLVL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLCMAVTMTOFNLDOC_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_CLCMAVTMTOFNLDOC_STR-MANDT sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMDOCUMENTUUID sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMAVGNMBROFDAYS sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMCALENDARQUARTER sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-CALENDARYEAR sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-CURRENTYEAR sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LEGALTRANSACTION sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LEGALCONTEXT sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMCONTEXTVERSION sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMPROFILE sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMENTITY sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMCREATEDUTCDATETIME sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-INTERNALDOCUMENTSTATUS sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMDOCCONTENTTYPE sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LEGALTRANSACTIONUUID sy-vline 
WA_CLCMAVTMTOFNLDOC_STR-LGLCNTNTMDOCACCESSLVL sy-vline      INTO ld_text SEPARATED BY SPACE.

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