ABAP Select data from SAP table RN1ME_PL_DATA_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1ME_PL_DATA_ALV 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 RN1ME_PL_DATA_ALV. 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 RN1ME_PL_DATA_ALV 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_RN1ME_PL_DATA_ALV TYPE STANDARD TABLE OF RN1ME_PL_DATA_ALV,
      WA_RN1ME_PL_DATA_ALV TYPE RN1ME_PL_DATA_ALV,
      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: <RN1ME_PL_DATA_ALV> TYPE RN1ME_PL_DATA_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1ME_PL_DATA_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1ME_PL_DATA_ALV
  INTO TABLE IT_RN1ME_PL_DATA_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1ME_PL_DATA_ALV
*  INTO TABLE @DATA(IT_RN1ME_PL_DATA_ALV2).
*--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_RN1ME_PL_DATA_ALV INDEX 1 INTO DATA(WA_RN1ME_PL_DATA_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1ME_PL_DATA_ALV ASSIGNING <RN1ME_PL_DATA_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1ME_PL_DATA_ALV>-EINRI = 1.
<RN1ME_PL_DATA_ALV>-PATNR = 1.
<RN1ME_PL_DATA_ALV>-FALNR = 1.
<RN1ME_PL_DATA_ALV>-PATNAME = 1.
<RN1ME_PL_DATA_ALV>-MEORDID = 1.

ENDLOOP.

LOOP AT IT_RN1ME_PL_DATA_ALV INTO WA_RN1ME_PL_DATA_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1ME_PL_DATA_ALV-MEEVTID, sy-vline,
  WA_RN1ME_PL_DATA_ALV-MESID, sy-vline,
  WA_RN1ME_PL_DATA_ALV-PRN, sy-vline,
  WA_RN1ME_PL_DATA_ALV-APROU, sy-vline,
  WA_RN1ME_PL_DATA_ALV-N1ID, sy-vline,
  WA_RN1ME_PL_DATA_ALV-MOVDF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1ME_PL_DATA_ALV 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_RN1ME_PL_DATA_ALV 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_RN1ME_PL_DATA_ALV INTO WA_RN1ME_PL_DATA_ALV.


*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_RN1ME_PL_DATA_ALV-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-FALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field N1ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-N1ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-N1ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-PDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-PDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field RDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-RDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-RDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PKGSIZE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-PKGSIZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-PKGSIZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PKGUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-PKGUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-PKGUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-VMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-VMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VMEIN_PKG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-VMEIN_PKG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-VMEIN_PKG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BDEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-BDEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-BDEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ENEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-ENEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-ENEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KOMEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-KOMEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-KOMEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DIEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-DIEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-DIEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KOMEI_PKG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_PL_DATA_ALV-KOMEI_PKG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_PL_DATA_ALV-KOMEI_PKG.
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_RN1ME_PL_DATA_ALV_STR, 
EINRI TYPE STRING,
PATNR TYPE STRING,
FALNR TYPE STRING,
PATNAME TYPE STRING,
MEORDID TYPE STRING,
MEEVTID TYPE STRING,
MESID TYPE STRING,
PRN TYPE STRING,
APROU TYPE STRING,
N1ID TYPE STRING,
MOVDF TYPE STRING,
MOVTF TYPE STRING,
MOVDT TYPE STRING,
MOVTT TYPE STRING,
PBDAD TYPE STRING,
PBTAD TYPE STRING,
MEDOCDOU TYPE STRING,
MEDOCOU TYPE STRING,
PDRUGDQ TYPE STRING,
RDRUGDQ TYPE STRING,
DRUGU TYPE STRING,
DRUGID TYPE STRING,
EDRUGID TYPE STRING,
DRUGTYP TYPE STRING,
DRUGTYP_ICON TYPE STRING,
MEDGRPID TYPE STRING,
PKG_ICON TYPE STRING,
DISPPKG TYPE STRING,
ADMPKG TYPE STRING,
INDISDOS TYPE STRING,
UNIT TYPE STRING,
PKGSIZE TYPE STRING,
PKGUNIT TYPE STRING,
PREMADE_IV TYPE STRING,
FSOURCE TYPE STRING,
OUPREP TYPE STRING,
MATNR TYPE STRING,
MMRESERV TYPE STRING,
MANUF TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
LTEXT TYPE STRING,
RSNUM TYPE STRING,
AUFNR TYPE STRING,
LGPLA TYPE STRING,
STORN TYPE STRING,
DRUGNAME TYPE STRING,
BRANDNAME TYPE STRING,
GENNAME TYPE STRING,
DESCRLT TYPE STRING,
VERFU TYPE STRING,
VERFU_TXT TYPE STRING,
VMENG TYPE STRING,
VMEIN TYPE STRING,
VMENG_PKG TYPE STRING,
VMEIN_PKG TYPE STRING,
BDMNG TYPE STRING,
BDEIN TYPE STRING,
ENMNG TYPE STRING,
ENEIN TYPE STRING,
KOMNG TYPE STRING,
KOMEI TYPE STRING,
DIMNG TYPE STRING,
DIEIN TYPE STRING,
MNGINPKG TYPE STRING,
KOMNG_PKG TYPE STRING,
KOMEI_PKG TYPE STRING,
PRNFREQ TYPE STRING,
WAUSG TYPE STRING,
ALV_STYL TYPE STRING,
ALV_INFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1ME_PL_DATA_ALV_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_RN1ME_PL_DATA_ALV_STR-EINRI sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PATNR sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-FALNR sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PATNAME sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MEORDID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MEEVTID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MESID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PRN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-APROU sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-N1ID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MOVDF sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MOVTF sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MOVDT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MOVTT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PBDAD sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PBTAD sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MEDOCDOU sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MEDOCOU sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PDRUGDQ sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-RDRUGDQ sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DRUGU sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DRUGID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-EDRUGID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DRUGTYP sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DRUGTYP_ICON sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MEDGRPID sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PKG_ICON sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DISPPKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-ADMPKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-INDISDOS sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-UNIT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PKGSIZE sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PKGUNIT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PREMADE_IV sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-FSOURCE sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-OUPREP sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MATNR sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MMRESERV sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MANUF sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-WERKS sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-LGORT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-LTEXT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-RSNUM sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-AUFNR sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-LGPLA sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-STORN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DRUGNAME sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-BRANDNAME sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-GENNAME sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DESCRLT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VERFU sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VERFU_TXT sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VMENG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VMEIN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VMENG_PKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-VMEIN_PKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-BDMNG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-BDEIN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-ENMNG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-ENEIN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-KOMNG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-KOMEI sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DIMNG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-DIEIN sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-MNGINPKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-KOMNG_PKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-KOMEI_PKG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-PRNFREQ sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-WAUSG sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-ALV_STYL sy-vline 
WA_RN1ME_PL_DATA_ALV_STR-ALV_INFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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