ABAP Select data from SAP table PLSC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLSC
*  INTO TABLE @DATA(IT_PLSC2).
*--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_PLSC INDEX 1 INTO DATA(WA_PLSC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLSC>-MANDT = 1.
<PLSC>-PLSCN = 1.
<PLSC>-PSACT = 1.
<PLSC>-PLSCT = 1.
<PLSC>-PDAT1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLSC-PDAT2, sy-vline,
  WA_PLSC-MDATE, sy-vline,
  WA_PLSC-SBFLG, sy-vline,
  WA_PLSC-SSTCK, sy-vline,
  WA_PLSC-SSTFL, sy-vline,
  WA_PLSC-VERSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLSC 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_PLSC 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_PLSC INTO WA_PLSC.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PLSC_STR, 
MANDT TYPE STRING,
PLSCN TYPE STRING,
PSACT TYPE STRING,
PLSCT TYPE STRING,
PDAT1 TYPE STRING,
PDAT2 TYPE STRING,
MDATE TYPE STRING,
SBFLG TYPE STRING,
SSTCK TYPE STRING,
SSTFL TYPE STRING,
VERSA TYPE STRING,
FIXEL TYPE STRING,
VRSIO TYPE STRING,
EISDT TYPE STRING,
VSBCO TYPE STRING,
BCODT TYPE STRING,
FIXLO TYPE STRING,
EINPL TYPE STRING,
KDAKZ TYPE STRING,
FBAKZ TYPE STRING,
FPAKZ TYPE STRING,
DIRKZ TYPE STRING,
AVMKZ TYPE STRING,
LLSKZ TYPE STRING,
LTPLS TYPE STRING,
LTPID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLSC_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_PLSC_STR-MANDT sy-vline 
WA_PLSC_STR-PLSCN sy-vline 
WA_PLSC_STR-PSACT sy-vline 
WA_PLSC_STR-PLSCT sy-vline 
WA_PLSC_STR-PDAT1 sy-vline 
WA_PLSC_STR-PDAT2 sy-vline 
WA_PLSC_STR-MDATE sy-vline 
WA_PLSC_STR-SBFLG sy-vline 
WA_PLSC_STR-SSTCK sy-vline 
WA_PLSC_STR-SSTFL sy-vline 
WA_PLSC_STR-VERSA sy-vline 
WA_PLSC_STR-FIXEL sy-vline 
WA_PLSC_STR-VRSIO sy-vline 
WA_PLSC_STR-EISDT sy-vline 
WA_PLSC_STR-VSBCO sy-vline 
WA_PLSC_STR-BCODT sy-vline 
WA_PLSC_STR-FIXLO sy-vline 
WA_PLSC_STR-EINPL sy-vline 
WA_PLSC_STR-KDAKZ sy-vline 
WA_PLSC_STR-FBAKZ sy-vline 
WA_PLSC_STR-FPAKZ sy-vline 
WA_PLSC_STR-DIRKZ sy-vline 
WA_PLSC_STR-AVMKZ sy-vline 
WA_PLSC_STR-LLSKZ sy-vline 
WA_PLSC_STR-LTPLS sy-vline 
WA_PLSC_STR-LTPID sy-vline      INTO ld_text SEPARATED BY SPACE.

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