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,...
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 average workloads. SQLIO on a SAP database server: Using 8-core server with ...
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...
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 ...
SQL Server: Simplify Database Maintenance with Table Partitions Noah Gomez - March 2007 In the past, working with partitions and very large tables was a burdensome and tedious task, but with SQL Server 2005, table partitioning has gotten much simpler. Now you can easily create multiple partition...
If all the rows in the table are required, the database server can ignore the indexes and perform a table scan. If all the rows in a table are required but there is an index whose key columns are in an ORDER BY, performing an index scan instead of a table scan might save a ...
You might partition your table when you have a large fact table (greater than 1 billion rows). In 99 percent of cases, the partition key should be based on date. With staging tables that require ELT, you can benefit from partitioning. It facilitates data lifecycle management. Be careful not...
博彦科技外派微软 - 微软高级系统工程师 北京、上海、深圳均设有岗位 *北京岗位-Infra&Windows \ Exhange &Monden Work \ SQL Server DBA 各一位 *上海岗位-Infra&Windows 一位boss*深圳- SQL Server DBA \ Infra&Windows \ Exhange &Monden Work 各一位 驻场微软大客户,为客户企业提供技术方面的指导、搭建...
SQL Server Agent allows you to configure alerts for specific events, such as high CPU or memory usage, job failures, or database connection issues. Alerts can be sent via email or logged to a table for review. Best Practice: Configure alerts forCPU usage exceeding 80%,memory pressure warning...
You can see (kind of unclearly) that scale and performance outweighs everything else. “Scale and Performance” means data compression, table partitioning, etc. Over 23% say HA/DR is the most important feature. (always on). I like to listen to these guys (ISV’s) since their business ...