ABAP Select data from SAP table ROIO_RN_LIST into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIO_RN_LIST
*  INTO TABLE @DATA(IT_ROIO_RN_LIST2).
*--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_ROIO_RN_LIST INDEX 1 INTO DATA(WA_ROIO_RN_LIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIO_RN_LIST ASSIGNING <ROIO_RN_LIST>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIO_RN_LIST>-EBELN = 1.
<ROIO_RN_LIST>-EBELP = 1.
<ROIO_RN_LIST>-EXTROW = 1.
<ROIO_RN_LIST>-PACKNO = 1.
<ROIO_RN_LIST>-INTROW = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIO_RN_LIST-SRVPOS, sy-vline,
WA_ROIO_RN_LIST-MENGE, sy-vline,
WA_ROIO_RN_LIST-MEINS, sy-vline,
WA_ROIO_RN_LIST-KTEXT1, sy-vline,
WA_ROIO_RN_LIST-OIO_MATNR, sy-vline,
WA_ROIO_RN_LIST-OIO_MENGE, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ROIO_RN_LIST 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_ROIO_RN_LIST 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_ROIO_RN_LIST INTO WA_ROIO_RN_LIST. *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 EBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-EBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-EBELN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field OIO_MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-OIO_MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-OIO_MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OIO_MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-OIO_MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-OIO_MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OIO_MBMEI CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-OIO_MBMEI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-OIO_MBMEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OIO_RFBLN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ROIO_RN_LIST-OIO_RFBLN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ROIO_RN_LIST-OIO_RFBLN.
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_ROIO_RN_LIST_STR,
EBELN TYPE STRING,
EBELP TYPE STRING,
EXTROW TYPE STRING,
PACKNO TYPE STRING,
INTROW TYPE STRING,
SRVPOS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
KTEXT1 TYPE STRING,
OIO_MATNR TYPE STRING,
OIO_MENGE TYPE STRING,
OIO_MEINS TYPE STRING,
OIO_MBTXT TYPE STRING,
OIO_MBMNG TYPE STRING,
OIO_OPMNG TYPE STRING,
OIO_MBMEI TYPE STRING,
OIO_RMOBSTAT TYPE STRING,
OIO_RNUMPACK TYPE STRING,
OIO_OMOBITEMS TYPE STRING,
OIO_RX_PRT TYPE STRING,
OIO_X_PRT_ALLOC TYPE STRING,
OIO_RFBLN TYPE STRING,
OIO_RFBLP TYPE STRING,
SEL TYPE STRING,
MSG_FLAG TYPE STRING,
MSG_ICON TYPE STRING,
MSG_MAXSV TYPE STRING,END OF T_EKKO_STR. DATA: WA_ROIO_RN_LIST_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_ROIO_RN_LIST_STR-EBELN sy-vline
WA_ROIO_RN_LIST_STR-EBELP sy-vline
WA_ROIO_RN_LIST_STR-EXTROW sy-vline
WA_ROIO_RN_LIST_STR-PACKNO sy-vline
WA_ROIO_RN_LIST_STR-INTROW sy-vline
WA_ROIO_RN_LIST_STR-SRVPOS sy-vline
WA_ROIO_RN_LIST_STR-MENGE sy-vline
WA_ROIO_RN_LIST_STR-MEINS sy-vline
WA_ROIO_RN_LIST_STR-KTEXT1 sy-vline
WA_ROIO_RN_LIST_STR-OIO_MATNR sy-vline
WA_ROIO_RN_LIST_STR-OIO_MENGE sy-vline
WA_ROIO_RN_LIST_STR-OIO_MEINS sy-vline
WA_ROIO_RN_LIST_STR-OIO_MBTXT sy-vline
WA_ROIO_RN_LIST_STR-OIO_MBMNG sy-vline
WA_ROIO_RN_LIST_STR-OIO_OPMNG sy-vline
WA_ROIO_RN_LIST_STR-OIO_MBMEI sy-vline
WA_ROIO_RN_LIST_STR-OIO_RMOBSTAT sy-vline
WA_ROIO_RN_LIST_STR-OIO_RNUMPACK sy-vline
WA_ROIO_RN_LIST_STR-OIO_OMOBITEMS sy-vline
WA_ROIO_RN_LIST_STR-OIO_RX_PRT sy-vline
WA_ROIO_RN_LIST_STR-OIO_X_PRT_ALLOC sy-vline
WA_ROIO_RN_LIST_STR-OIO_RFBLN sy-vline
WA_ROIO_RN_LIST_STR-OIO_RFBLP sy-vline
WA_ROIO_RN_LIST_STR-SEL sy-vline
WA_ROIO_RN_LIST_STR-MSG_FLAG sy-vline
WA_ROIO_RN_LIST_STR-MSG_ICON sy-vline
WA_ROIO_RN_LIST_STR-MSG_MAXSV sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.