Why is the database server slow?

What causes a database to be slow?

Memory Contention SQL Server caches the databases in what's called a buffer pool. A buffer pool acts as a storage space for data pages that have been recently written or read to and from disk. A small buffer pool will slow down your SQL application by overwhelming the disk's subsystem.

Why is SQL Server database slow?

Here's one way to track down the cause of the problem: Find out the most expensive queries running in SQL Server, over the period of slowdown. Review the query plan and query execution statistics and wait types for the slowest query. Review the Query History over the period where performance changed.

How can I speed up my database server?

1Use the Database Engine Tuning Advisor. ... 2Analyze Wait Statistics. ... 3Find the Queries Creating a Problem. ... 4Fine-Tune the Queries. ... 5Get a Stronger CPU for Enhanced Performance. ... 6Look Out for the Indexes. ... 7Keep Log and Data Files Separate. ... 8Try Not to Overload SQL Server.

How can I speed up a slow database?

Top 5 Ways To Improve Your Database Performance1Optimize Queries.2Create optimal indexes.3Get a stronger CPU.4Allocate more memory.5Data defragmentation.6Disk Types.7Database version.8Summary.