Sql Server Query Performance Tuning, 4th Edition -

"CXPACKET," she muttered, seeing the results of her diagnostic query. "Parallelism overhead."

Her latest deployment—a simple reporting module—had brought the multi-terabyte SQL Server to its knees. The CEO was already calling. Every time she tried to run a trace, the management studio froze. She was flying blind in a storm of her own making. SQL Server Query Performance Tuning, 4th Edition

She didn't start with the code; she started with the philosophy . She flipped to the chapters on . While her instinct was to keep rewriting the JOIN logic, the book urged her to ask the server where it was hurting. "CXPACKET," she muttered, seeing the results of her