ABAP Select data from SAP table PRUSICKREG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUSICKREG
*  INTO TABLE @DATA(IT_PRUSICKREG2).
*--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_PRUSICKREG INDEX 1 INTO DATA(WA_PRUSICKREG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUSICKREG>-PERNR = 1.
<PRUSICKREG>-NACHN = 1.
<PRUSICKREG>-VORNA = 1.
<PRUSICKREG>-MIDNM = 1.
<PRUSICKREG>-INITI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUSICKREG-VDSK1, sy-vline,
  WA_PRUSICKREG-PLSTS, sy-vline,
  WA_PRUSICKREG-BASCP, sy-vline,
  WA_PRUSICKREG-EXTRP, sy-vline,
  WA_PRUSICKREG-SENBD, sy-vline,
  WA_PRUSICKREG-SENDY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUSICKREG 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_PRUSICKREG 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_PRUSICKREG INTO WA_PRUSICKREG.


*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 PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PRUSICKREG-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUSICKREG-FGBDT.
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_PRUSICKREG_STR, 
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
MIDNM TYPE STRING,
INITI TYPE STRING,
VDSK1 TYPE STRING,
PLSTS TYPE STRING,
BASCP TYPE STRING,
EXTRP TYPE STRING,
SENBD TYPE STRING,
SENDY TYPE STRING,
SENDM TYPE STRING,
SENDD TYPE STRING,
SOCGR TYPE STRING,
SOCGT TYPE STRING,
MODSG TYPE STRING,
MODST TYPE STRING,
PREAS TYPE STRING,
PREAT TYPE STRING,
AWART TYPE STRING,
AWATX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
KENN1 TYPE STRING,
VORGS TYPE STRING,
REFNR TYPE STRING,
TOTAM TYPE STRING,
TOTDY TYPE STRING,
TOTFS TYPE STRING,
TOTUP TYPE STRING,
FAMME TYPE STRING,
FAMSA TYPE STRING,
FMNUM TYPE STRING,
FGBDT TYPE STRING,
FANAM TYPE STRING,
FAVOR TYPE STRING,
FNAC2 TYPE STRING,
BEGIN TYPE STRING,
ENDIN TYPE STRING,
EMRAM TYPE STRING,
RERAM TYPE STRING,
EMRUP TYPE STRING,
EMRDY TYPE STRING,
FSSAM TYPE STRING,
RFSAM TYPE STRING,
FSSDY TYPE STRING,
PERCN TYPE STRING,
AVENM TYPE STRING,
AVEAM TYPE STRING,
AVERT TYPE STRING,
AVELM TYPE STRING,
DOCNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUSICKREG_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_PRUSICKREG_STR-PERNR sy-vline 
WA_PRUSICKREG_STR-NACHN sy-vline 
WA_PRUSICKREG_STR-VORNA sy-vline 
WA_PRUSICKREG_STR-MIDNM sy-vline 
WA_PRUSICKREG_STR-INITI sy-vline 
WA_PRUSICKREG_STR-VDSK1 sy-vline 
WA_PRUSICKREG_STR-PLSTS sy-vline 
WA_PRUSICKREG_STR-BASCP sy-vline 
WA_PRUSICKREG_STR-EXTRP sy-vline 
WA_PRUSICKREG_STR-SENBD sy-vline 
WA_PRUSICKREG_STR-SENDY sy-vline 
WA_PRUSICKREG_STR-SENDM sy-vline 
WA_PRUSICKREG_STR-SENDD sy-vline 
WA_PRUSICKREG_STR-SOCGR sy-vline 
WA_PRUSICKREG_STR-SOCGT sy-vline 
WA_PRUSICKREG_STR-MODSG sy-vline 
WA_PRUSICKREG_STR-MODST sy-vline 
WA_PRUSICKREG_STR-PREAS sy-vline 
WA_PRUSICKREG_STR-PREAT sy-vline 
WA_PRUSICKREG_STR-AWART sy-vline 
WA_PRUSICKREG_STR-AWATX sy-vline 
WA_PRUSICKREG_STR-BEGDA sy-vline 
WA_PRUSICKREG_STR-ENDDA sy-vline 
WA_PRUSICKREG_STR-KENN1 sy-vline 
WA_PRUSICKREG_STR-VORGS sy-vline 
WA_PRUSICKREG_STR-REFNR sy-vline 
WA_PRUSICKREG_STR-TOTAM sy-vline 
WA_PRUSICKREG_STR-TOTDY sy-vline 
WA_PRUSICKREG_STR-TOTFS sy-vline 
WA_PRUSICKREG_STR-TOTUP sy-vline 
WA_PRUSICKREG_STR-FAMME sy-vline 
WA_PRUSICKREG_STR-FAMSA sy-vline 
WA_PRUSICKREG_STR-FMNUM sy-vline 
WA_PRUSICKREG_STR-FGBDT sy-vline 
WA_PRUSICKREG_STR-FANAM sy-vline 
WA_PRUSICKREG_STR-FAVOR sy-vline 
WA_PRUSICKREG_STR-FNAC2 sy-vline 
WA_PRUSICKREG_STR-BEGIN sy-vline 
WA_PRUSICKREG_STR-ENDIN sy-vline 
WA_PRUSICKREG_STR-EMRAM sy-vline 
WA_PRUSICKREG_STR-RERAM sy-vline 
WA_PRUSICKREG_STR-EMRUP sy-vline 
WA_PRUSICKREG_STR-EMRDY sy-vline 
WA_PRUSICKREG_STR-FSSAM sy-vline 
WA_PRUSICKREG_STR-RFSAM sy-vline 
WA_PRUSICKREG_STR-FSSDY sy-vline 
WA_PRUSICKREG_STR-PERCN sy-vline 
WA_PRUSICKREG_STR-AVENM sy-vline 
WA_PRUSICKREG_STR-AVEAM sy-vline 
WA_PRUSICKREG_STR-AVERT sy-vline 
WA_PRUSICKREG_STR-AVELM sy-vline 
WA_PRUSICKREG_STR-DOCNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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