ABAP Select data from SAP table PLASD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLASD
*  INTO TABLE @DATA(IT_PLASD2).
*--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_PLASD INDEX 1 INTO DATA(WA_PLASD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLASD>-MANDT = 1.
<PLASD>-PLNTY = 1.
<PLASD>-PLNNR = 1.
<PLASD>-PLNAL = 1.
<PLASD>-PLNFL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLASD-PLNKN, sy-vline,
  WA_PLASD-ZAEHL, sy-vline,
  WA_PLASD-DATUV, sy-vline,
  WA_PLASD-TECHV, sy-vline,
  WA_PLASD-AENNR, sy-vline,
  WA_PLASD-LOEKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLASD 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_PLASD 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_PLASD INTO WA_PLASD.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VERSN_SOURCE_PLNFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLASD-VERSN_SOURCE_PLNFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLASD-VERSN_SOURCE_PLNFL.
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_PLASD_STR, 
MANDT TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
PLNFL TYPE STRING,
PLNKN TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VALID_TO TYPE STRING,
LOEKZ_INHERITED TYPE STRING,
VERSN TYPE STRING,
VERSN_SOURCE TYPE STRING,
VERSN_SOURCE_PLNFL TYPE STRING,
VERSN_SOURCE_PLNKN TYPE STRING,
DATUB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLASD_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_PLASD_STR-MANDT sy-vline 
WA_PLASD_STR-PLNTY sy-vline 
WA_PLASD_STR-PLNNR sy-vline 
WA_PLASD_STR-PLNAL sy-vline 
WA_PLASD_STR-PLNFL sy-vline 
WA_PLASD_STR-PLNKN sy-vline 
WA_PLASD_STR-ZAEHL sy-vline 
WA_PLASD_STR-DATUV sy-vline 
WA_PLASD_STR-TECHV sy-vline 
WA_PLASD_STR-AENNR sy-vline 
WA_PLASD_STR-LOEKZ sy-vline 
WA_PLASD_STR-PARKZ sy-vline 
WA_PLASD_STR-ANDAT sy-vline 
WA_PLASD_STR-ANNAM sy-vline 
WA_PLASD_STR-AEDAT sy-vline 
WA_PLASD_STR-AENAM sy-vline 
WA_PLASD_STR-VALID_TO sy-vline 
WA_PLASD_STR-LOEKZ_INHERITED sy-vline 
WA_PLASD_STR-VERSN sy-vline 
WA_PLASD_STR-VERSN_SOURCE sy-vline 
WA_PLASD_STR-VERSN_SOURCE_PLNFL sy-vline 
WA_PLASD_STR-VERSN_SOURCE_PLNKN sy-vline 
WA_PLASD_STR-DATUB sy-vline      INTO ld_text SEPARATED BY SPACE.

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