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Re: Table lock while adding a column and clients are logged in

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Alban Hertroys wrote on 03.04.2011 11:31:
On 3 Apr 2011, at 11:22, Alban Hertroys wrote:

Oracle and SQL server don't "suffer" from this because they do not
handle DDL statements transactionally (I could be mistaken about
SQL server, I don't know it all that well).


I forgot to mention, if you perform DDL in Oracle all your currently
running transactions are implicitly rolled back.

Not quite. The current transaction is committed, not rolled back.

http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_1001.htm#i2099120

Regards
Thomas


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