SQL Server Performance Office Hours Episode 17
| I work for a small startup (7 ppl, 3 on sql server including the boss). Our software is a complex ERP system with business logic heavily implemented on sql server. We are planning to move to Postgres. Is postgres a good platform for complex business logic and performance? Can a small team achieve this migration for a complex software? Your expert opinion? |
| Hey Erik. What deciding factors should be considered when marking an entire table for Update Statistics? Is it based on how fast the data changes, or is it okay to run the Update Statistics overnight, irrespective? |
| Hi Erik, I have top wait type SOS_SCHEDULER_YIELD which is way higher then second one: SOS_SCHEDULER_YIELD: 75h of 230 Hours Sample, 1.5ms on avg. Second PAGELATCH_SH is 5h total. Should I focus mostly on most CPU-intensive queries (in cache) or this can be connected also with “High CPU ready time on VM side” or lack of proper indexes that causes too much scans index/table from memory? Strange is that I see this wait (I’m logging sp_Blitz every 15 min) as top also on weekends when there is no heavy load in DB. Should I start logging sp_PresureDetector to see number of worker threads used and try to correlate it with high SOS_SCHEDULER_YIELD wait? Thank you! |
| I see Brent is going to put AI in his procedures. Are you plannong on doing that too? |
| Why would I use dynamic SQL to defeat parameter sensitivity, when I can just use OPTIMIZE FOR? |
Going Further
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