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BruceD (BruceD (AT) discussions (DOT) microsoft.com) writes: Thank you again for the feedback. It may or may not be possible to defer changes, but I'll keep what you have said in mind. Is there a book, not necessarily from MS Press, that you would recommend? A book for the stand-in DBA? Maybe this book, but it's for SQL 2008. http://www.manning.com/colledge/ I have not read it, nor anything else from the author, so I cannot vouch for it. But if you really need to make database changes while the real DBA is away, first implement them in a test environment which is decently similar to producion in size. (And of course identical in schema.) Then you know how long time they take. Adding a nullable column is very quick: since it's a metadata operation. But other changes may require SQL Server to rebuild the entire table structure, which can make the table unavailable for a longer time. And this also shows how important that it is to have it all in scripts. If you have it all in scripts, you know that what you ran in test, will also run in production. -- Erland Sommarskog, SQL Server MVP, esquel (AT) sommarskog (DOT) se Links for SQL Server Books Online: SQL 2008: http://msdn.microsoft.com/en-us/sqlserver/cc514207.aspx SQL 2005: http://msdn.microsoft.com/en-us/sqlserver/bb895970.aspx SQL 2000: http://www.microsoft.com/sql/prodinf...ons/books.mspx . |
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