ABAP Select data from SAP table RNAPP9P into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RNAPP9P 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 RNAPP9P. 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 RNAPP9P 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_RNAPP9P TYPE STANDARD TABLE OF RNAPP9P,
      WA_RNAPP9P TYPE RNAPP9P,
      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: <RNAPP9P> TYPE RNAPP9P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RNAPP9P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RNAPP9P
  INTO TABLE IT_RNAPP9P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNAPP9P
*  INTO TABLE @DATA(IT_RNAPP9P2).
*--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_RNAPP9P INDEX 1 INTO DATA(WA_RNAPP9P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RNAPP9P ASSIGNING <RNAPP9P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNAPP9P>-UNITID = 1.
<RNAPP9P>-TABROW = 1.
<RNAPP9P>-MARK = 1.
<RNAPP9P>-EINRI = 1.
<RNAPP9P>-PERNR = 1.

ENDLOOP.

LOOP AT IT_RNAPP9P INTO WA_RNAPP9P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNAPP9P-ROOM, sy-vline,
  WA_RNAPP9P-SRCHD, sy-vline,
  WA_RNAPP9P-SRCHTFROM, sy-vline,
  WA_RNAPP9P-SRCHTTO, sy-vline,
  WA_RNAPP9P-TO_WEEK, sy-vline,
  WA_RNAPP9P-ATTOU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNAPP9P 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_RNAPP9P 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_RNAPP9P INTO WA_RNAPP9P.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-PERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-PERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ROOM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-ROOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-ROOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ATTOU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-ATTOU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-ATTOU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ATTFA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-ATTFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-ATTFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FACHR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-FACHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-FACHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RANK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-RANK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-RANK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SRVPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-SRVPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-SRVPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CATID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-CATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-CATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ROLTPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNAPP9P-ROLTPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNAPP9P-ROLTPE.
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_RNAPP9P_STR, 
UNITID TYPE STRING,
TABROW TYPE STRING,
MARK TYPE STRING,
EINRI TYPE STRING,
PERNR TYPE STRING,
ROOM TYPE STRING,
SRCHD TYPE STRING,
SRCHTFROM TYPE STRING,
SRCHTTO TYPE STRING,
TO_WEEK TYPE STRING,
ATTOU TYPE STRING,
ATTFA TYPE STRING,
FACHR TYPE STRING,
RANK TYPE STRING,
DSPTY TYPE STRING,
SRCHGRP TYPE STRING,
SRCHOVB TYPE STRING,
FIRSTV TYPE STRING,
FOLLOW_UP TYPE STRING,
EXCL_MON_AM TYPE STRING,
EXCL_TUE_AM TYPE STRING,
EXCL_WED_AM TYPE STRING,
EXCL_THU_AM TYPE STRING,
EXCL_FRI_AM TYPE STRING,
EXCL_SAT_AM TYPE STRING,
EXCL_SUN_AM TYPE STRING,
EXCL_MON_PM TYPE STRING,
EXCL_TUE_PM TYPE STRING,
EXCL_WED_PM TYPE STRING,
EXCL_THU_PM TYPE STRING,
EXCL_FRI_PM TYPE STRING,
EXCL_SAT_PM TYPE STRING,
EXCL_SUN_PM TYPE STRING,
EXCL_VORM TYPE STRING,
EXCL_NACHM TYPE STRING,
DISTMIN TYPE STRING,
DISTMAX TYPE STRING,
DISTUNIT TYPE STRING,
APP_CONSTR_OBJ TYPE STRING,
SRVPID TYPE STRING,
CATID TYPE STRING,
GPART TYPE STRING,
ROLTPE TYPE STRING,
PATKZ TYPE STRING,
ACCTY TYPE STRING,
PRIOCL TYPE STRING,
DURMIN TYPE STRING,
DURMIN_X TYPE STRING,
TREATM_FIXED TYPE STRING,
DURSRCH TYPE STRING,
SRVP_OBJ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNAPP9P_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_RNAPP9P_STR-UNITID sy-vline 
WA_RNAPP9P_STR-TABROW sy-vline 
WA_RNAPP9P_STR-MARK sy-vline 
WA_RNAPP9P_STR-EINRI sy-vline 
WA_RNAPP9P_STR-PERNR sy-vline 
WA_RNAPP9P_STR-ROOM sy-vline 
WA_RNAPP9P_STR-SRCHD sy-vline 
WA_RNAPP9P_STR-SRCHTFROM sy-vline 
WA_RNAPP9P_STR-SRCHTTO sy-vline 
WA_RNAPP9P_STR-TO_WEEK sy-vline 
WA_RNAPP9P_STR-ATTOU sy-vline 
WA_RNAPP9P_STR-ATTFA sy-vline 
WA_RNAPP9P_STR-FACHR sy-vline 
WA_RNAPP9P_STR-RANK sy-vline 
WA_RNAPP9P_STR-DSPTY sy-vline 
WA_RNAPP9P_STR-SRCHGRP sy-vline 
WA_RNAPP9P_STR-SRCHOVB sy-vline 
WA_RNAPP9P_STR-FIRSTV sy-vline 
WA_RNAPP9P_STR-FOLLOW_UP sy-vline 
WA_RNAPP9P_STR-EXCL_MON_AM sy-vline 
WA_RNAPP9P_STR-EXCL_TUE_AM sy-vline 
WA_RNAPP9P_STR-EXCL_WED_AM sy-vline 
WA_RNAPP9P_STR-EXCL_THU_AM sy-vline 
WA_RNAPP9P_STR-EXCL_FRI_AM sy-vline 
WA_RNAPP9P_STR-EXCL_SAT_AM sy-vline 
WA_RNAPP9P_STR-EXCL_SUN_AM sy-vline 
WA_RNAPP9P_STR-EXCL_MON_PM sy-vline 
WA_RNAPP9P_STR-EXCL_TUE_PM sy-vline 
WA_RNAPP9P_STR-EXCL_WED_PM sy-vline 
WA_RNAPP9P_STR-EXCL_THU_PM sy-vline 
WA_RNAPP9P_STR-EXCL_FRI_PM sy-vline 
WA_RNAPP9P_STR-EXCL_SAT_PM sy-vline 
WA_RNAPP9P_STR-EXCL_SUN_PM sy-vline 
WA_RNAPP9P_STR-EXCL_VORM sy-vline 
WA_RNAPP9P_STR-EXCL_NACHM sy-vline 
WA_RNAPP9P_STR-DISTMIN sy-vline 
WA_RNAPP9P_STR-DISTMAX sy-vline 
WA_RNAPP9P_STR-DISTUNIT sy-vline 
WA_RNAPP9P_STR-APP_CONSTR_OBJ sy-vline 
WA_RNAPP9P_STR-SRVPID sy-vline 
WA_RNAPP9P_STR-CATID sy-vline 
WA_RNAPP9P_STR-GPART sy-vline 
WA_RNAPP9P_STR-ROLTPE sy-vline 
WA_RNAPP9P_STR-PATKZ sy-vline 
WA_RNAPP9P_STR-ACCTY sy-vline 
WA_RNAPP9P_STR-PRIOCL sy-vline 
WA_RNAPP9P_STR-DURMIN sy-vline 
WA_RNAPP9P_STR-DURMIN_X sy-vline 
WA_RNAPP9P_STR-TREATM_FIXED sy-vline 
WA_RNAPP9P_STR-DURSRCH sy-vline 
WA_RNAPP9P_STR-SRVP_OBJ sy-vline      INTO ld_text SEPARATED BY SPACE.

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