Comments on: How to Stop A Table Being Dropped Or Truncated? http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/ Oracle Question and Answer Sat, 07 Aug 2010 04:48:56 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Kiran Shah http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/comment-page-1/#comment-86 Kiran Shah Wed, 25 Jan 2006 07:49:35 +0000 http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/#comment-86 For safety against dropping a table there is a much better way to implement this. You have to create a dummy table having one field only of length about 30 characters. Insert required table names in this table. And now use a before drop trigger where you will first look into this table to see and match table names. However, this will give you protection against in-advertantly dropping of tables but not against truncating. For safety against dropping a table there is a much better way to implement this. You have to create a dummy table having one field only of length about 30 characters. Insert required table names in this table. And now use a before drop trigger where you will first look into this table to see and match table names.

However, this will give you protection against in-advertantly dropping of tables but not against truncating.

]]> By: David Aldridge http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/comment-page-1/#comment-65 David Aldridge Fri, 20 Jan 2006 16:11:02 +0000 http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/#comment-65 If your application performs any kind of DDL on a table, or you are not sure whether it does, then don't use this technique. You can find more information on DDL locks here: http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10743/consist.htm#sthref2101 However, I wouldn't rely on a documented list, even if one exists somewhere. Always test for yourself. If your application performs any kind of DDL on a table, or you are not sure whether it does, then don’t use this technique.

You can find more information on DDL locks here:
http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10743/consist.htm#sthref2101

However, I wouldn’t rely on a documented list, even if one exists somewhere. Always test for yourself.

]]> By: Robertc http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/comment-page-1/#comment-64 Robertc Fri, 20 Jan 2006 08:40:38 +0000 http://oraqa.com/2006/01/19/how-to-stop-a-table-being-dropped-or-truncated/#comment-64 >> This will also prevent other operations that require a table lock though, Please list them, thanks for the nice tip >> This will also prevent other operations that require a table lock though,

Please list them,
thanks for the nice tip

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