Workload on new OLTP production system involving table scans, and UPDATE and SELECT statements. 30% in terms of latency and duration as noted in Figure 1. Enterprise Hitachi AMS SAN storage array. 8% - 12% for
It is generally a good idea to map the measure group partitions to either separate SQL table partitions by using partition keys or onto a separate SQL table. Use partitioning wherever possible; this limits the amount of reprocessing that needs to be done based on your extraction, transformation,...
Expand table Latch modeKPSHUPEXDT KP Y Y Y Y N SH Y Y Y N N UP Y Y N N N EX Y N N N N DT N N N N NSQL Server superLatches and sublatchesWith the increasing presence of NUMA based multiple socket / multi-core systems, SQL Server 2005 introduced SuperLatches, also ...
In this paper we cover some of the most important data warehousing features in SQL Server 2008 and outline best practices for using them effectively. In addition, we cover some of the more general best practices for creating a successful data warehouse project. Following best practices alone canno...
The scenario of partitioning in place consists of changing the existing table physical storage structure from an un-partitioned table defined on a filegroup, into a partitioned table defined on a partition scheme that maps a partition function to the single PRIMAR...
The queue can simply be a SQL Server table. Each package should include a simple loop in the control flow: Pick a relevant chunk from the queue: "Relevant" means that is has not already been processed and that all chunks it depends on have already run. If no item is returned from ...
Using partitioning, however, removing that same data requires removing the specific partition from a partitioned table (which is a metadata operation) and then dropping or truncating the standalone table. Moreover, without knowing how to best design partitions, one might not be aware that the ...
The SQL Server Database Engine doesn't escalate row or page locks to table locks.Using this trace flag can generate excessive number of locks and if the lock memory grows large enough, attempts to allocate additional locks for any query might fail. This can slow the performance of the Data...
Best Practices and Sizing Guidelines for Transaction Processing Applications with Microsoft SQL Server 2012 using EqualLogic PS Series Storage1 Introduction ... 7 1.1 Objective...
Table of Contents What is Microsoft SQL Server? What is Oracle? Benefits of connecting SQL Server to Oracle Steps for Connecting SQL Server and Oracle Challenges Faced by Users in Connecting SQL Server and Oracle Best Practices for Performing This Integration Conclusion Frequently Asked Questions ...