SQL Server Troubleshooting, Performance & HA Guides
Practical SQL Server guides for installation, high availability, performance tuning, security, and production troubleshooting.
Start Here: SQL Server
Choose a practical guide and move from diagnosis to a verified next step.
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Mastering SQL Server (Course)
01Install SQL Server and connect safelyBuild an isolated practice instance before changing a production server.
02Learn Transact-SQL fundamentalsStart with queries, filters, and relational data.
03Practice advanced Transact-SQLExtend your query skills before tuning real workloads.
04Understand indexing and performanceConnect index choices to query behavior and execution plans.
05Configure authentication and permissionsSeparate logins, users, and permissions.
06Practice backup, restore, and recoveryLearn the recovery workflow before you need it in an incident.