ABAP Select data from SAP table PICRL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PICRL
*  INTO TABLE @DATA(IT_PICRL2).
*--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_PICRL INDEX 1 INTO DATA(WA_PICRL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PICRL>-MANDT = 1.
<PICRL>-PICKEY = 1.
<PICRL>-PICPOS = 1.
<PICRL>-PICGID = 1.
<PICRL>-COUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PICRL-WERKS, sy-vline,
  WA_PICRL-BERID, sy-vline,
  WA_PICRL-MRPGR, sy-vline,
  WA_PICRL-LMATN, sy-vline,
  WA_PICRL-DATFR, sy-vline,
  WA_PICRL-SPERKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PICRL 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_PICRL 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_PICRL INTO WA_PICRL.


*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 MATN1, internal->external for field LMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PICRL-LMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PICRL-LMATN.
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_PICRL_STR, 
MANDT TYPE STRING,
PICKEY TYPE STRING,
PICPOS TYPE STRING,
PICGID TYPE STRING,
COUNTER TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
MRPGR TYPE STRING,
LMATN TYPE STRING,
DATFR TYPE STRING,
SPERKZ TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PICRL_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_PICRL_STR-MANDT sy-vline 
WA_PICRL_STR-PICKEY sy-vline 
WA_PICRL_STR-PICPOS sy-vline 
WA_PICRL_STR-PICGID sy-vline 
WA_PICRL_STR-COUNTER sy-vline 
WA_PICRL_STR-WERKS sy-vline 
WA_PICRL_STR-BERID sy-vline 
WA_PICRL_STR-MRPGR sy-vline 
WA_PICRL_STR-LMATN sy-vline 
WA_PICRL_STR-DATFR sy-vline 
WA_PICRL_STR-SPERKZ sy-vline 
WA_PICRL_STR-ERDAT sy-vline 
WA_PICRL_STR-ERNAM sy-vline 
WA_PICRL_STR-AEDAT sy-vline 
WA_PICRL_STR-AENAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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