Mazhar Khan
Database Administrator @ Wipro
- Role
- Sql Database Administrator at Wipro
- Location
- Thane, IN
- LinkedIn followers
- 500 followers
About Mazhar Khan
Hi there, I am Mazhar. I\'m MSSQL Database Administrator with 3+ years of…
Experience
Sql Database Administrator
Jan 2023 — Present
Performed SQL Server Installation, configuration, and maintenance of SQL Server instances. Successfully did Failover and Failback for maintenance or in case of emergency. Managed and maintained SQL Server databases, ensuring high availability. Configured and maintained HADR (Log Shipping, Always on, Replication). Performed regular database backups, restorations, and point-in-time recovery for business-critical databases. Automated routine DBA tasks using T-SQL scripts and SQL Server Agent Jobs. Created and managed custom maintenance plans for backups, index optimization, and consistency checks (DBCC). Managed security by creating logins, users, and role-based access control; enforced password policies. Supported regular disaster recovery drills, validating DR procedures and backup integrity. Optimized SQL queries and database performance, reducing query execution times by up to 40%. Conducted routine database maintenance tasks, including reindexing, shrinking databases, and updating statistics. Successfully migrated a large-scale database with over 1TB of data to a new server with zero downtime, ensuring seamless continuity of business operations. Provided 24/7 on-call support for production systems, ensuring high availability and SLA compliance.
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