What does the query optimizer hint ROBUST PLAN do? I explain query hints in simple words and ask you for a practical example of ROBUST PLAN in action.
SQL SERVER – 2008 – SSMS Feature – Multi-server Queries
SSMS 2008 lets DBAs run one query against many servers from one window. Here is how multi-server queries work, a tip from my TechEd India session.
SQL SERVER – Effect of Normalization on Index and Performance
Normalization organizes data dependencies, while indexes support access paths. I evaluate their performance effects through the actual workload.
SQL SERVER – 2008 – Customize Toolbar – Remove Debug Button from Toolbar
SQL Server 2008 brought the debugger back, and its button sits right next to Execute. Here is how to customize toolbar buttons and remove the debug button.
No Join Predicate: Verify the Relationship Before Tuning
No join predicate prompts a relationship check. Compare all combinations with exact customer-order pairs before changing indexes or hiding duplicates.
SQL SERVER – Performance Counters from System Views – By Kevin Mckenna
SQL and .NET expert Kevin Mckenna, whom I met on Twitter, shows how to read SQL Server performance counters from system views.
Preventing Overbooking When Two Sessions Grab the Last Seat
Learn preventing overbooking through a last-seat race, an atomic update, update locks, and a database constraint that rejects oversold inventory.