Typically when you see OLEDB waits they come from querying linked servers set up through OLEDB. If you are seeing a high number of these as a query runs, you should consider monitoring performance on the remote
This book provides the tools you need to approach your queries with performance in mind. SQL Server Query Performance Tuning leads you through understanding the causes of poor performance, how to identify them, and how to fix them. You’ll learn to be proactive in establishing performance ...
Query Performance Tuning (SQL Server Compact) How-to Topics (SQL Server Compact) Troubleshooting (SQL Server Compact) SQL Server Compact Development Guide SQL Server Compact Technical Reference SQL CE 3.5 SP2 SQL Server CE 3.5 SQL CE 3.1 SQL CE 3.0 Class Library SQL CE 2.0 and 1.1 Class Libra...
Tuning tools provide added functionality and ease of use forSQL query optimization. SQL Server tuning applicationsmonitor database performanceand will often provide user interfaces with graphic representations of query performance and wait times, which can help administrators identify resource bottlenecks with...
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SQL Server Compact 3.5 stores data in 4 Kb pages. The page count can be approximated by using the following formula, although the actual count might be slightly larger because of the storage engine overhead. <sum of sizes of columns in bytes> * <# of rows> ...
Query performance tuning continues to be a fundamental aspect of modern database maintenance and development. Yes, hardware performance is constantly improving. Upgrades to SQL Server鈥攅specially to the optimizer, which helps determine how a query is executed, and the query engine, which executes ...
Avoid using the SQL Server 2000 sql_variant datatype. Besides being being a performance hog, it significantly affects what you can do with the data stored as a sql_variant. For example, sql_variant columns cannot be a part of primary or foreign keys, can be used in indexes and unique ke...
this sound like mission impossible. Not really. Let’s take a look at one tool, part of SQL Server, that’s called Index Tuning Wizard which can help us with this stuff. Remember that the biggest single thing we can do in our databases performance-wise is have a good indexing s...
SQL query performance tuning with I/O statistics and execution plans How to analyze query performance characteristics in SQL Server Best practices The more filters in the Where clause the better. Simply because the more filters we put in is less data that SQL Server will return. You’ve seen ...