ABAP Select data from SAP table RN2_RAD_PROC_WL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2_RAD_PROC_WL 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 RN2_RAD_PROC_WL. 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 RN2_RAD_PROC_WL 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_RN2_RAD_PROC_WL TYPE STANDARD TABLE OF RN2_RAD_PROC_WL,
      WA_RN2_RAD_PROC_WL TYPE RN2_RAD_PROC_WL,
      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: <RN2_RAD_PROC_WL> TYPE RN2_RAD_PROC_WL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2_RAD_PROC_WL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2_RAD_PROC_WL
  INTO TABLE IT_RN2_RAD_PROC_WL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2_RAD_PROC_WL
*  INTO TABLE @DATA(IT_RN2_RAD_PROC_WL2).
*--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_RN2_RAD_PROC_WL INDEX 1 INTO DATA(WA_RN2_RAD_PROC_WL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2_RAD_PROC_WL ASSIGNING <RN2_RAD_PROC_WL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2_RAD_PROC_WL>-PATNR = 1.
<RN2_RAD_PROC_WL>-PNAME = 1.
<RN2_RAD_PROC_WL>-FALNR = 1.
<RN2_RAD_PROC_WL>-LNRLS = 1.
<RN2_RAD_PROC_WL>-LEIST = 1.

ENDLOOP.

LOOP AT IT_RN2_RAD_PROC_WL INTO WA_RN2_RAD_PROC_WL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2_RAD_PROC_WL-LEISTKTXT, sy-vline,
  WA_RN2_RAD_PROC_WL-LOC, sy-vline,
  WA_RN2_RAD_PROC_WL-LOCTEXT, sy-vline,
  WA_RN2_RAD_PROC_WL-ANFID, sy-vline,
  WA_RN2_RAD_PROC_WL-CORDERID, sy-vline,
  WA_RN2_RAD_PROC_WL-VKGID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2_RAD_PROC_WL 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_RN2_RAD_PROC_WL 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_RN2_RAD_PROC_WL INTO WA_RN2_RAD_PROC_WL.


*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 PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-FALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRLS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-LNRLS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-LNRLS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LEIST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-LEIST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-LEIST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-LOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-LOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANFOE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-ANFOE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-ANFOE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERBOE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-ERBOE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-ERBOE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERBBE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-ERBBE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-ERBBE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXAMDOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-EXAMDOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-EXAMDOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2_RAD_PROC_WL-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2_RAD_PROC_WL-EINRI.
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_RN2_RAD_PROC_WL_STR, 
PATNR TYPE STRING,
PNAME TYPE STRING,
FALNR TYPE STRING,
LNRLS TYPE STRING,
LEIST TYPE STRING,
LEISTKTXT TYPE STRING,
LOC TYPE STRING,
LOCTEXT TYPE STRING,
ANFID TYPE STRING,
CORDERID TYPE STRING,
VKGID TYPE STRING,
BEZEBENE TYPE STRING,
DOKAR TYPE STRING,
DTID TYPE STRING,
DTVERS TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
LFDDOK TYPE STRING,
DOKSTATUS TYPE STRING,
STUDYID TYPE STRING,
IS_USED TYPE STRING,
STUDYUID TYPE STRING,
IEXAMID TYPE STRING,
ACCNR TYPE STRING,
DTKB TYPE STRING,
APRI TYPE STRING,
ANFOE TYPE STRING,
PIC_STUDY TYPE STRING,
PIC_ROW TYPE STRING,
PGBDAT TYPE STRING,
DKTXT TYPE STRING,
IBGDT TYPE STRING,
ORGLAKB TYPE STRING,
AUFGABE TYPE STRING,
ERBOE TYPE STRING,
ERBBE TYPE STRING,
INDIKATION TYPE STRING,
KURZANAMNESE TYPE STRING,
ORGANSYSTEM TYPE STRING,
PRIVAT TYPE STRING,
EXAMDOKNR TYPE STRING,
EXAMDOKAR TYPE STRING,
EXAMDOKVR TYPE STRING,
EXAMDOKTL TYPE STRING,
EXAMSTATUS TYPE STRING,
EXAM_HAS_STUDY TYPE STRING,
PCODE TYPE STRING,
EINRI TYPE STRING,
RPT_DODAT TYPE STRING,
RPT_DOTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2_RAD_PROC_WL_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_RN2_RAD_PROC_WL_STR-PATNR sy-vline 
WA_RN2_RAD_PROC_WL_STR-PNAME sy-vline 
WA_RN2_RAD_PROC_WL_STR-FALNR sy-vline 
WA_RN2_RAD_PROC_WL_STR-LNRLS sy-vline 
WA_RN2_RAD_PROC_WL_STR-LEIST sy-vline 
WA_RN2_RAD_PROC_WL_STR-LEISTKTXT sy-vline 
WA_RN2_RAD_PROC_WL_STR-LOC sy-vline 
WA_RN2_RAD_PROC_WL_STR-LOCTEXT sy-vline 
WA_RN2_RAD_PROC_WL_STR-ANFID sy-vline 
WA_RN2_RAD_PROC_WL_STR-CORDERID sy-vline 
WA_RN2_RAD_PROC_WL_STR-VKGID sy-vline 
WA_RN2_RAD_PROC_WL_STR-BEZEBENE sy-vline 
WA_RN2_RAD_PROC_WL_STR-DOKAR sy-vline 
WA_RN2_RAD_PROC_WL_STR-DTID sy-vline 
WA_RN2_RAD_PROC_WL_STR-DTVERS sy-vline 
WA_RN2_RAD_PROC_WL_STR-DOKNR sy-vline 
WA_RN2_RAD_PROC_WL_STR-DOKVR sy-vline 
WA_RN2_RAD_PROC_WL_STR-DOKTL sy-vline 
WA_RN2_RAD_PROC_WL_STR-LFDDOK sy-vline 
WA_RN2_RAD_PROC_WL_STR-DOKSTATUS sy-vline 
WA_RN2_RAD_PROC_WL_STR-STUDYID sy-vline 
WA_RN2_RAD_PROC_WL_STR-IS_USED sy-vline 
WA_RN2_RAD_PROC_WL_STR-STUDYUID sy-vline 
WA_RN2_RAD_PROC_WL_STR-IEXAMID sy-vline 
WA_RN2_RAD_PROC_WL_STR-ACCNR sy-vline 
WA_RN2_RAD_PROC_WL_STR-DTKB sy-vline 
WA_RN2_RAD_PROC_WL_STR-APRI sy-vline 
WA_RN2_RAD_PROC_WL_STR-ANFOE sy-vline 
WA_RN2_RAD_PROC_WL_STR-PIC_STUDY sy-vline 
WA_RN2_RAD_PROC_WL_STR-PIC_ROW sy-vline 
WA_RN2_RAD_PROC_WL_STR-PGBDAT sy-vline 
WA_RN2_RAD_PROC_WL_STR-DKTXT sy-vline 
WA_RN2_RAD_PROC_WL_STR-IBGDT sy-vline 
WA_RN2_RAD_PROC_WL_STR-ORGLAKB sy-vline 
WA_RN2_RAD_PROC_WL_STR-AUFGABE sy-vline 
WA_RN2_RAD_PROC_WL_STR-ERBOE sy-vline 
WA_RN2_RAD_PROC_WL_STR-ERBBE sy-vline 
WA_RN2_RAD_PROC_WL_STR-INDIKATION sy-vline 
WA_RN2_RAD_PROC_WL_STR-KURZANAMNESE sy-vline 
WA_RN2_RAD_PROC_WL_STR-ORGANSYSTEM sy-vline 
WA_RN2_RAD_PROC_WL_STR-PRIVAT sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAMDOKNR sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAMDOKAR sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAMDOKVR sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAMDOKTL sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAMSTATUS sy-vline 
WA_RN2_RAD_PROC_WL_STR-EXAM_HAS_STUDY sy-vline 
WA_RN2_RAD_PROC_WL_STR-PCODE sy-vline 
WA_RN2_RAD_PROC_WL_STR-EINRI sy-vline 
WA_RN2_RAD_PROC_WL_STR-RPT_DODAT sy-vline 
WA_RN2_RAD_PROC_WL_STR-RPT_DOTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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