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Asked: 2026-06-06T17:39:10+00:00

sqlplus / as sysdba sqlplus sys as sysdba Are there any difference between /

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sqlplus / as sysdba
sqlplus sys as sysdba

Are there any difference between / and sys?

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  1. Editorial Team

    There is now no difference in / AS SYSDBA and SYS AS SYSDBA.

    Tom Kyte specifically stipulates this in this thread.

    Basically he explains that the SYSDBA suffix effectively connects you to the database as SYS no matter what credentials you give, the example he uses is:

    connect santa/claus as sysdba

    same as

    connect / as sysdba

    connect santa/claus as sysdba

    sys%ORA10GR2> connect santa/claus as sysdba
Connected.
sys%ORA10GR2> show user
USER is "SYS"

    Hope it helps…

    P.S. This was not the case in 8i and earlier but hopefully you are using a database and SQL*Plus from this century. 🙂

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