对于这个有筛选条件的T-SQL语句,这里SQL Server果断的采用的并行运算的方式,聚集索引也是并行扫描,因为我电脑为4个逻辑CPU(其实是2颗物理CPU,4线程),所以这里使用的是4线程并行扫描四次表,每个线程扫描一部分数据,然后汇总。 这里总共用了4个线程,其中线程0为调度线程,负责调度所有的其它线程,所以它...
For more information, see In-Memory Optimization Overview and Usage Scenarios. Only one MEMORY_OPTIMIZED_DATA filegroup is allowed per database. For code samples that create a filegroup to store memory-optimized data, see Creating a Memory-Optimized Table and a Natively Compiled Stored Procedure. ...
Become a pro at SQL Server performance tuning with DB Optimizer, IDERA's database optimization tool. Includes visual tuning diagrams and more.
For more information, see In-Memory Optimization Overview and Usage Scenarios. Only one MEMORY_OPTIMIZED_DATA filegroup is allowed per database. For code samples that create a filegroup to store memory-optimized data, see Creating a Memory-Optimized Table and a N...
Top 10 steps to optimize data access in SQL Server: Part III (Apply advanced indexing and denormalization) As you might have seen already, we have gone through seven optimization steps so far. Let us proceed to step 8 now: Step 8: Diagnose performance problems, and use SQL Profiler and th...
DATE_CORRELATION_OPTIMIZATION TIDAK AKTIF Ya DB_CHAINING TIDAK AKTIF Tidak ENKRIPSI TIDAK AKTIF Tidak MIXED_PAGE_ALLOCATION AKTIF Tidak NUMERIC_ROUNDABORT TIDAK AKTIF Ya PAGE_VERIFY CHECKSUM Ya PARAMETERISASI SEDERHANA Ya QUOTED_IDENTIFIER TIDAK AKTIF Ya READ_COMMITTED_SNAPSHOT TIDAK AKTIF Ya PEMULIHAN...
Azure SQL ServerIn addition to the benefits of SQL Server, offers dynamic scalability with no downtime, intelligent optimization, global scalability and availability, elimination of hardware costs, and reduced administration. Choose the best Azure SQL Server option ...
The performance impact of TDE is minor. Because the encryption occurs at the database level, the database can leverage indexes and keys for query optimization. This allows for full range and equality scans. In tests using sample data and TPC-C runs, the overall performance impact was estimated...
Date Correlation Optimization Enabled When True, SQL Server maintains correlation statistics between any two tables in the database that are linked by a FOREIGN KEY constraint and have datetime columns. When False, correlation statistics are not maintained. Delayed Durability Enables this feature. For ...
Learn how to generate a statistic script using metadata to create a statistics-only database in SQL Server.