ABAP Select data from SAP table P2PL_ZLABASE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2PL_ZLABASE 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 P2PL_ZLABASE. 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 P2PL_ZLABASE 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_P2PL_ZLABASE TYPE STANDARD TABLE OF P2PL_ZLABASE,
      WA_P2PL_ZLABASE TYPE P2PL_ZLABASE,
      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: <P2PL_ZLABASE> TYPE P2PL_ZLABASE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2PL_ZLABASE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2PL_ZLABASE
  INTO TABLE IT_P2PL_ZLABASE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2PL_ZLABASE
*  INTO TABLE @DATA(IT_P2PL_ZLABASE2).
*--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_P2PL_ZLABASE INDEX 1 INTO DATA(WA_P2PL_ZLABASE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2PL_ZLABASE ASSIGNING <P2PL_ZLABASE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2PL_ZLABASE>-MANDT = 1.
<P2PL_ZLABASE>-DCT_PERNR = 1.
<P2PL_ZLABASE>-DCT_SEQNR = 1.
<P2PL_ZLABASE>-DCT_ROWID = 1.
<P2PL_ZLABASE>-ABZNR = 1.

ENDLOOP.

LOOP AT IT_P2PL_ZLABASE INTO WA_P2PL_ZLABASE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2PL_ZLABASE-FPPER, sy-vline,
  WA_P2PL_ZLABASE-LGART, sy-vline,
  WA_P2PL_ZLABASE-GROSS, sy-vline,
  WA_P2PL_ZLABASE-NETTO, sy-vline,
  WA_P2PL_ZLABASE-ANZHL, sy-vline,
  WA_P2PL_ZLABASE-BASE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2PL_ZLABASE 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_P2PL_ZLABASE 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_P2PL_ZLABASE INTO WA_P2PL_ZLABASE.


*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_P2PL_ZLABASE_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
ABZNR TYPE STRING,
FPPER TYPE STRING,
LGART TYPE STRING,
GROSS TYPE STRING,
NETTO TYPE STRING,
ANZHL TYPE STRING,
BASE TYPE STRING,
DIVI TYPE STRING,
MTHNO TYPE STRING,
IPEND TYPE STRING,
INPTY TYPE STRING,
INPID TYPE STRING,
INOCR TYPE STRING,
INOCC TYPE STRING,
VALID TYPE STRING,
AUTO TYPE STRING,
HRWORK TYPE STRING,
HRPLAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2PL_ZLABASE_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_P2PL_ZLABASE_STR-MANDT sy-vline 
WA_P2PL_ZLABASE_STR-DCT_PERNR sy-vline 
WA_P2PL_ZLABASE_STR-DCT_SEQNR sy-vline 
WA_P2PL_ZLABASE_STR-DCT_ROWID sy-vline 
WA_P2PL_ZLABASE_STR-ABZNR sy-vline 
WA_P2PL_ZLABASE_STR-FPPER sy-vline 
WA_P2PL_ZLABASE_STR-LGART sy-vline 
WA_P2PL_ZLABASE_STR-GROSS sy-vline 
WA_P2PL_ZLABASE_STR-NETTO sy-vline 
WA_P2PL_ZLABASE_STR-ANZHL sy-vline 
WA_P2PL_ZLABASE_STR-BASE sy-vline 
WA_P2PL_ZLABASE_STR-DIVI sy-vline 
WA_P2PL_ZLABASE_STR-MTHNO sy-vline 
WA_P2PL_ZLABASE_STR-IPEND sy-vline 
WA_P2PL_ZLABASE_STR-INPTY sy-vline 
WA_P2PL_ZLABASE_STR-INPID sy-vline 
WA_P2PL_ZLABASE_STR-INOCR sy-vline 
WA_P2PL_ZLABASE_STR-INOCC sy-vline 
WA_P2PL_ZLABASE_STR-VALID sy-vline 
WA_P2PL_ZLABASE_STR-AUTO sy-vline 
WA_P2PL_ZLABASE_STR-HRWORK sy-vline 
WA_P2PL_ZLABASE_STR-HRPLAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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