ABAP Select data from SAP table PLMCD_RECT_DOCL1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PLMCD_RECT_DOCL1 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 PLMCD_RECT_DOCL1. 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 PLMCD_RECT_DOCL1 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_PLMCD_RECT_DOCL1 TYPE STANDARD TABLE OF PLMCD_RECT_DOCL1,
      WA_PLMCD_RECT_DOCL1 TYPE PLMCD_RECT_DOCL1,
      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: <PLMCD_RECT_DOCL1> TYPE PLMCD_RECT_DOCL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PLMCD_RECT_DOCL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PLMCD_RECT_DOCL1
  INTO TABLE IT_PLMCD_RECT_DOCL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLMCD_RECT_DOCL1
*  INTO TABLE @DATA(IT_PLMCD_RECT_DOCL12).
*--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_PLMCD_RECT_DOCL1 INDEX 1 INTO DATA(WA_PLMCD_RECT_DOCL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PLMCD_RECT_DOCL1 ASSIGNING <PLMCD_RECT_DOCL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLMCD_RECT_DOCL1>-MANDT = 1.
<PLMCD_RECT_DOCL1>-NS = 1.
<PLMCD_RECT_DOCL1>-IFNAME = 1.
<PLMCD_RECT_DOCL1>-IFVERSION = 1.
<PLMCD_RECT_DOCL1>-NSRECIP = 1.

ENDLOOP.

LOOP AT IT_PLMCD_RECT_DOCL1 INTO WA_PLMCD_RECT_DOCL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLMCD_RECT_DOCL1-RECIPIENT, sy-vline,
  WA_PLMCD_RECT_DOCL1-DOCUMENT_TYPE, sy-vline,
  WA_PLMCD_RECT_DOCL1-DOCUMENT_NUMBER, sy-vline,
  WA_PLMCD_RECT_DOCL1-DOCUMENT_PART, sy-vline,
  WA_PLMCD_RECT_DOCL1-DOCUMENT_VERSION, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PLMCD_RECT_DOCL1 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_PLMCD_RECT_DOCL1 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_PLMCD_RECT_DOCL1 INTO WA_PLMCD_RECT_DOCL1.


*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 DOCUMENT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLMCD_RECT_DOCL1-DOCUMENT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMCD_RECT_DOCL1-DOCUMENT_NUMBER.
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_PLMCD_RECT_DOCL1_STR, 
MANDT TYPE STRING,
NS TYPE STRING,
IFNAME TYPE STRING,
IFVERSION TYPE STRING,
NSRECIP TYPE STRING,
RECIPIENT TYPE STRING,
DOCUMENT_TYPE TYPE STRING,
DOCUMENT_NUMBER TYPE STRING,
DOCUMENT_PART TYPE STRING,
DOCUMENT_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLMCD_RECT_DOCL1_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_PLMCD_RECT_DOCL1_STR-MANDT sy-vline 
WA_PLMCD_RECT_DOCL1_STR-NS sy-vline 
WA_PLMCD_RECT_DOCL1_STR-IFNAME sy-vline 
WA_PLMCD_RECT_DOCL1_STR-IFVERSION sy-vline 
WA_PLMCD_RECT_DOCL1_STR-NSRECIP sy-vline 
WA_PLMCD_RECT_DOCL1_STR-RECIPIENT sy-vline 
WA_PLMCD_RECT_DOCL1_STR-DOCUMENT_TYPE sy-vline 
WA_PLMCD_RECT_DOCL1_STR-DOCUMENT_NUMBER sy-vline 
WA_PLMCD_RECT_DOCL1_STR-DOCUMENT_PART sy-vline 
WA_PLMCD_RECT_DOCL1_STR-DOCUMENT_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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