ABAP Select data from SAP table RN1ME_TMPL_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_TMPL_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_TMPL_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_TMPL_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_TMPL_ALV TYPE STANDARD TABLE OF RN1ME_TMPL_ALV,
      WA_RN1ME_TMPL_ALV TYPE RN1ME_TMPL_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_TMPL_ALV> TYPE RN1ME_TMPL_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1ME_TMPL_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1ME_TMPL_ALV
  INTO TABLE IT_RN1ME_TMPL_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1ME_TMPL_ALV
*  INTO TABLE @DATA(IT_RN1ME_TMPL_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_TMPL_ALV INDEX 1 INTO DATA(WA_RN1ME_TMPL_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1ME_TMPL_ALV ASSIGNING <RN1ME_TMPL_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1ME_TMPL_ALV>-CHECKBOX = 1.
<RN1ME_TMPL_ALV>-NODE_KEY = 1.
<RN1ME_TMPL_ALV>-TPG_FLAG = 1.
<RN1ME_TMPL_ALV>-TPGID = 1.
<RN1ME_TMPL_ALV>-TPGTX = 1.

ENDLOOP.

LOOP AT IT_RN1ME_TMPL_ALV INTO WA_RN1ME_TMPL_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1ME_TMPL_ALV-TPGSTX, sy-vline,
  WA_RN1ME_TMPL_ALV-TPID, sy-vline,
  WA_RN1ME_TMPL_ALV-SEQNO, sy-vline,
  WA_RN1ME_TMPL_ALV-TPTX, sy-vline,
  WA_RN1ME_TMPL_ALV-TPSTX, sy-vline,
  WA_RN1ME_TMPL_ALV-ORGID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1ME_TMPL_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_TMPL_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_TMPL_ALV INTO WA_RN1ME_TMPL_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 TPGID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-TPGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-TPGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-TPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-TPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-ORGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-ORGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field PDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PDRUGAQ
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PDRUGAQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PDRUGAQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field DRUGASTR
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-DRUGASTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-DRUGASTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DOSE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-DOSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-DOSE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field RECAA
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-RECAA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-RECAA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field RECAM
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-RECAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-RECAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DCONTU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-DCONTU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-DCONTU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field PDUR
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PDURU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PDURU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PDURU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field RECQUAN
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-RECQUAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-RECQUAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECQUANU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-RECQUANU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-RECQUANU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field ORDUR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-ORDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-ORDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PCALOCK
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PCALOCK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PCALOCK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PCALOCKU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PCALOCKU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PCALOCKU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PCAPERU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-PCAPERU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-PCAPERU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_TMPL_ALV-AL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_TMPL_ALV-AL.
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_TMPL_ALV_STR, 
CHECKBOX TYPE STRING,
NODE_KEY TYPE STRING,
TPG_FLAG TYPE STRING,
TPGID TYPE STRING,
TPGTX TYPE STRING,
TPGSTX TYPE STRING,
TPID TYPE STRING,
SEQNO TYPE STRING,
TPTX TYPE STRING,
TPSTX TYPE STRING,
ORGID TYPE STRING,
GPART TYPE STRING,
DKAT TYPE STRING,
DKEY TYPE STRING,
STDTEXT TYPE STRING,
TPDRUGID TYPE STRING,
MEORDID TYPE STRING,
DRUGID TYPE STRING,
DRUGTYP TYPE STRING,
PDRUGDQ TYPE STRING,
PDRUGAQ TYPE STRING,
PDRUGMQ TYPE STRING,
DRUGU TYPE STRING,
DRUGASTR TYPE STRING,
DRUGASTRU TYPE STRING,
CALCUD TYPE STRING,
DOSE TYPE STRING,
DOSEU TYPE STRING,
RECAA TYPE STRING,
RECU TYPE STRING,
RECAM TYPE STRING,
CALCREL TYPE STRING,
DCONTS TYPE STRING,
DCONTU TYPE STRING,
PIVDUR TYPE STRING,
ADRATE TYPE STRING,
ADRATEU TYPE STRING,
AGENTID TYPE STRING,
FSOURCE TYPE STRING,
PDUR TYPE STRING,
PDURU TYPE STRING,
RECQUAN TYPE STRING,
RECQUANU TYPE STRING,
MOTYPID TYPE STRING,
APDEV TYPE STRING,
PHFORM TYPE STRING,
APROU TYPE STRING,
DESCR TYPE STRING,
ORDUR TYPE STRING,
ORDURU TYPE STRING,
INSTX TYPE STRING,
INLTX TYPE STRING,
MOPRN TYPE STRING,
OLDIS TYPE STRING,
SLDOSE TYPE STRING,
IVTYPE TYPE STRING,
RECUP TYPE STRING,
STRGTHDOS TYPE STRING,
SELTYP TYPE STRING,
PCALOCK TYPE STRING,
PCALOCKU TYPE STRING,
PCAMAX TYPE STRING,
PCAPERU TYPE STRING,
COMPDOS TYPE STRING,
AL TYPE STRING,
RCUSE TYPE STRING,
ZNR TYPE STRING,
N1ZTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1ME_TMPL_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_TMPL_ALV_STR-CHECKBOX sy-vline 
WA_RN1ME_TMPL_ALV_STR-NODE_KEY sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPG_FLAG sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPGID sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPGTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPGSTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPID sy-vline 
WA_RN1ME_TMPL_ALV_STR-SEQNO sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPSTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-ORGID sy-vline 
WA_RN1ME_TMPL_ALV_STR-GPART sy-vline 
WA_RN1ME_TMPL_ALV_STR-DKAT sy-vline 
WA_RN1ME_TMPL_ALV_STR-DKEY sy-vline 
WA_RN1ME_TMPL_ALV_STR-STDTEXT sy-vline 
WA_RN1ME_TMPL_ALV_STR-TPDRUGID sy-vline 
WA_RN1ME_TMPL_ALV_STR-MEORDID sy-vline 
WA_RN1ME_TMPL_ALV_STR-DRUGID sy-vline 
WA_RN1ME_TMPL_ALV_STR-DRUGTYP sy-vline 
WA_RN1ME_TMPL_ALV_STR-PDRUGDQ sy-vline 
WA_RN1ME_TMPL_ALV_STR-PDRUGAQ sy-vline 
WA_RN1ME_TMPL_ALV_STR-PDRUGMQ sy-vline 
WA_RN1ME_TMPL_ALV_STR-DRUGU sy-vline 
WA_RN1ME_TMPL_ALV_STR-DRUGASTR sy-vline 
WA_RN1ME_TMPL_ALV_STR-DRUGASTRU sy-vline 
WA_RN1ME_TMPL_ALV_STR-CALCUD sy-vline 
WA_RN1ME_TMPL_ALV_STR-DOSE sy-vline 
WA_RN1ME_TMPL_ALV_STR-DOSEU sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECAA sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECU sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECAM sy-vline 
WA_RN1ME_TMPL_ALV_STR-CALCREL sy-vline 
WA_RN1ME_TMPL_ALV_STR-DCONTS sy-vline 
WA_RN1ME_TMPL_ALV_STR-DCONTU sy-vline 
WA_RN1ME_TMPL_ALV_STR-PIVDUR sy-vline 
WA_RN1ME_TMPL_ALV_STR-ADRATE sy-vline 
WA_RN1ME_TMPL_ALV_STR-ADRATEU sy-vline 
WA_RN1ME_TMPL_ALV_STR-AGENTID sy-vline 
WA_RN1ME_TMPL_ALV_STR-FSOURCE sy-vline 
WA_RN1ME_TMPL_ALV_STR-PDUR sy-vline 
WA_RN1ME_TMPL_ALV_STR-PDURU sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECQUAN sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECQUANU sy-vline 
WA_RN1ME_TMPL_ALV_STR-MOTYPID sy-vline 
WA_RN1ME_TMPL_ALV_STR-APDEV sy-vline 
WA_RN1ME_TMPL_ALV_STR-PHFORM sy-vline 
WA_RN1ME_TMPL_ALV_STR-APROU sy-vline 
WA_RN1ME_TMPL_ALV_STR-DESCR sy-vline 
WA_RN1ME_TMPL_ALV_STR-ORDUR sy-vline 
WA_RN1ME_TMPL_ALV_STR-ORDURU sy-vline 
WA_RN1ME_TMPL_ALV_STR-INSTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-INLTX sy-vline 
WA_RN1ME_TMPL_ALV_STR-MOPRN sy-vline 
WA_RN1ME_TMPL_ALV_STR-OLDIS sy-vline 
WA_RN1ME_TMPL_ALV_STR-SLDOSE sy-vline 
WA_RN1ME_TMPL_ALV_STR-IVTYPE sy-vline 
WA_RN1ME_TMPL_ALV_STR-RECUP sy-vline 
WA_RN1ME_TMPL_ALV_STR-STRGTHDOS sy-vline 
WA_RN1ME_TMPL_ALV_STR-SELTYP sy-vline 
WA_RN1ME_TMPL_ALV_STR-PCALOCK sy-vline 
WA_RN1ME_TMPL_ALV_STR-PCALOCKU sy-vline 
WA_RN1ME_TMPL_ALV_STR-PCAMAX sy-vline 
WA_RN1ME_TMPL_ALV_STR-PCAPERU sy-vline 
WA_RN1ME_TMPL_ALV_STR-COMPDOS sy-vline 
WA_RN1ME_TMPL_ALV_STR-AL sy-vline 
WA_RN1ME_TMPL_ALV_STR-RCUSE sy-vline 
WA_RN1ME_TMPL_ALV_STR-ZNR sy-vline 
WA_RN1ME_TMPL_ALV_STR-N1ZTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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