ABAP Select data from SAP table PLMLV_CNPMAS03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PLMLV_CNPMAS03 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 PLMLV_CNPMAS03. 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 PLMLV_CNPMAS03 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_PLMLV_CNPMAS03 TYPE STANDARD TABLE OF PLMLV_CNPMAS03,
      WA_PLMLV_CNPMAS03 TYPE PLMLV_CNPMAS03,
      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: <PLMLV_CNPMAS03> TYPE PLMLV_CNPMAS03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PLMLV_CNPMAS03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PLMLV_CNPMAS03
  INTO TABLE IT_PLMLV_CNPMAS03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLMLV_CNPMAS03
*  INTO TABLE @DATA(IT_PLMLV_CNPMAS032).
*--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_PLMLV_CNPMAS03 INDEX 1 INTO DATA(WA_PLMLV_CNPMAS032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PLMLV_CNPMAS03 ASSIGNING <PLMLV_CNPMAS03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLMLV_CNPMAS03>-EDIDC = 1.
<PLMLV_CNPMAS03>-MANDT = 1.
<PLMLV_CNPMAS03>-DOCNUM = 1.
<PLMLV_CNPMAS03>-DOCREL = 1.
<PLMLV_CNPMAS03>-STATUS = 1.

ENDLOOP.

LOOP AT IT_PLMLV_CNPMAS03 INTO WA_PLMLV_CNPMAS03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLMLV_CNPMAS03-DOCTYP, sy-vline,
  WA_PLMLV_CNPMAS03-DIRECT, sy-vline,
  WA_PLMLV_CNPMAS03-RCVPOR, sy-vline,
  WA_PLMLV_CNPMAS03-RCVPRT, sy-vline,
  WA_PLMLV_CNPMAS03-RCVPRN, sy-vline,
  WA_PLMLV_CNPMAS03-RCVSAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLMLV_CNPMAS03 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_PLMLV_CNPMAS03 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_PLMLV_CNPMAS03 INTO WA_PLMLV_CNPMAS03.


*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 RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLMLV_CNPMAS03-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMLV_CNPMAS03-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLMLV_CNPMAS03-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMLV_CNPMAS03-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_PLMLV_CNPMAS03-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMLV_CNPMAS03-RCVPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_PLMLV_CNPMAS03-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMLV_CNPMAS03-SNDPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLMLV_CNPMAS03-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLMLV_CNPMAS03-AENNR.
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_PLMLV_CNPMAS03_STR, 
EDIDC TYPE STRING,
MANDT TYPE STRING,
DOCNUM TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DOCTYP TYPE STRING,
DIRECT TYPE STRING,
RCVPOR TYPE STRING,
RCVPRT TYPE STRING,
RCVPRN TYPE STRING,
RCVSAD TYPE STRING,
RCVSMN TYPE STRING,
RCVSNA TYPE STRING,
RCVSCA TYPE STRING,
RCVSDF TYPE STRING,
RCVSLF TYPE STRING,
RCVLAD TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
SNDPOR TYPE STRING,
SNDPRT TYPE STRING,
SNDPRN TYPE STRING,
SNDSAD TYPE STRING,
SNDSMN TYPE STRING,
SNDSNA TYPE STRING,
SNDSCA TYPE STRING,
SNDSDF TYPE STRING,
SNDSLF TYPE STRING,
SNDLAD TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
MESTYP TYPE STRING,
IDOCTP TYPE STRING,
CIMTYP TYPE STRING,
RCVPFC TYPE STRING,
SNDPFC TYPE STRING,
SERIAL TYPE STRING,
EXPRSS TYPE STRING,
UPDDAT TYPE STRING,
UPDTIM TYPE STRING,
MAXSEGNUM TYPE STRING,
E1CUTY TYPE STRING,
MSGFN TYPE STRING,
OBJECT_TYP TYPE STRING,
FLDELETE TYPE STRING,
E1DATEM TYPE STRING,
MSGFN TYPE STRING,
KEY_DATE TYPE STRING,
AENNR TYPE STRING,
EFFECTIVITY TYPE STRING,
E1CUID TYPE STRING,
E1CUCOM TYPE STRING,
E1UPSLINK TYPE STRING,
UPSNAM TYPE STRING,
ORGNAM TYPE STRING,
MESTYP TYPE STRING,
OBJID TYPE STRING,
OBJVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLMLV_CNPMAS03_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_PLMLV_CNPMAS03_STR-EDIDC sy-vline 
WA_PLMLV_CNPMAS03_STR-MANDT sy-vline 
WA_PLMLV_CNPMAS03_STR-DOCNUM sy-vline 
WA_PLMLV_CNPMAS03_STR-DOCREL sy-vline 
WA_PLMLV_CNPMAS03_STR-STATUS sy-vline 
WA_PLMLV_CNPMAS03_STR-DOCTYP sy-vline 
WA_PLMLV_CNPMAS03_STR-DIRECT sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVPOR sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVPRT sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVPRN sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSAD sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSMN sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSNA sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSCA sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSDF sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVSLF sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVLAD sy-vline 
WA_PLMLV_CNPMAS03_STR-STD sy-vline 
WA_PLMLV_CNPMAS03_STR-STDVRS sy-vline 
WA_PLMLV_CNPMAS03_STR-STDMES sy-vline 
WA_PLMLV_CNPMAS03_STR-MESCOD sy-vline 
WA_PLMLV_CNPMAS03_STR-MESFCT sy-vline 
WA_PLMLV_CNPMAS03_STR-OUTMOD sy-vline 
WA_PLMLV_CNPMAS03_STR-TEST sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDPOR sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDPRT sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDPRN sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSAD sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSMN sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSNA sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSCA sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSDF sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDSLF sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDLAD sy-vline 
WA_PLMLV_CNPMAS03_STR-REFINT sy-vline 
WA_PLMLV_CNPMAS03_STR-REFGRP sy-vline 
WA_PLMLV_CNPMAS03_STR-REFMES sy-vline 
WA_PLMLV_CNPMAS03_STR-ARCKEY sy-vline 
WA_PLMLV_CNPMAS03_STR-CREDAT sy-vline 
WA_PLMLV_CNPMAS03_STR-CRETIM sy-vline 
WA_PLMLV_CNPMAS03_STR-MESTYP sy-vline 
WA_PLMLV_CNPMAS03_STR-IDOCTP sy-vline 
WA_PLMLV_CNPMAS03_STR-CIMTYP sy-vline 
WA_PLMLV_CNPMAS03_STR-RCVPFC sy-vline 
WA_PLMLV_CNPMAS03_STR-SNDPFC sy-vline 
WA_PLMLV_CNPMAS03_STR-SERIAL sy-vline 
WA_PLMLV_CNPMAS03_STR-EXPRSS sy-vline 
WA_PLMLV_CNPMAS03_STR-UPDDAT sy-vline 
WA_PLMLV_CNPMAS03_STR-UPDTIM sy-vline 
WA_PLMLV_CNPMAS03_STR-MAXSEGNUM sy-vline 
WA_PLMLV_CNPMAS03_STR-E1CUTY sy-vline 
WA_PLMLV_CNPMAS03_STR-MSGFN sy-vline 
WA_PLMLV_CNPMAS03_STR-OBJECT_TYP sy-vline 
WA_PLMLV_CNPMAS03_STR-FLDELETE sy-vline 
WA_PLMLV_CNPMAS03_STR-E1DATEM sy-vline 
WA_PLMLV_CNPMAS03_STR-MSGFN sy-vline 
WA_PLMLV_CNPMAS03_STR-KEY_DATE sy-vline 
WA_PLMLV_CNPMAS03_STR-AENNR sy-vline 
WA_PLMLV_CNPMAS03_STR-EFFECTIVITY sy-vline 
WA_PLMLV_CNPMAS03_STR-E1CUID sy-vline 
WA_PLMLV_CNPMAS03_STR-E1CUCOM sy-vline 
WA_PLMLV_CNPMAS03_STR-E1UPSLINK sy-vline 
WA_PLMLV_CNPMAS03_STR-UPSNAM sy-vline 
WA_PLMLV_CNPMAS03_STR-ORGNAM sy-vline 
WA_PLMLV_CNPMAS03_STR-MESTYP sy-vline 
WA_PLMLV_CNPMAS03_STR-OBJID sy-vline 
WA_PLMLV_CNPMAS03_STR-OBJVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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