The transaction log is used by SQL Server to maintain data consistency and integrity. If the database is not in Simple-recovery mode, it can also be used in an appropriate backup regime to restore the database to a point in time.
MidnightDBA and Red Gate have joined together to produce a new book on SQL Server, written by 15 first-time authors. The resulting book, TribalSQL, includes everything you should know about SQL Server that isn’t taught in traditional training, they call it Tribal knowledge.
While backup to the Cloud may be useful in terms of optimizing storage across the enterprise, for DBAs it remains essential that they retain fast, easy, access to the backup files. Azure Explorer is a free tool that might help.
Our major goal in terms of log maintenance for all databases under our care is to optimize for write performance, in order to support all activities that require SQL Server to write to the log, including data modifications, data loads, index rebuilds, and so on. However, it's also important to keep an eye on possible log fragmentation, which, as described previously, can affect the performance of processes that need to read the log, such as log backups and the crash recovery process.
As a developer, DBA or manager, you may not really want to know all about XML, replication or Reporting Services, but if your next project uses one or more of these technologies heavily then the best place to start is with the 'jungle roof' view of each topic that this Crib Sheet compendium provides.
Is there a sound technical reason why SQL Azure can't support extended properties?
It is late evening. Something is wrong with a database. You narrow down the possibilities, getting more frustrated and puzzled. Stay calm. Check the inputs systematically. No! The data going into that table is right, but when you then read it in the table, it's wrong. Why did I stop believing in the supernatural? Then it hits you. Every time it comes as a surprise. They're using triggers. (This editorial was originally published on Nov 10, 2008)