sql server memory usage high

References: Http://msdn.microsoft.com/en-us/library/ms187103.aspxOverview SQL Server uses log transmission, you can automatically back up transaction logs in the "primary database" on the "primary server" instance to one or more "secondary databases" on the separate "secondary server" instance ". Transaction Log backup

successfully compiled and re-used for all executions, so the server memory is effectively used and saved and the CPU usage is limited. Now, considering that the planned cache is part of the Memory Sharing pool, eliminating redundant plans can free up more available memory

Tags: remote data type SRC local images data reserved HTTP databaseYou want to restore SQL Server high-backup data to a lower version of SQLSERVER2008R2, but this is not possible to restore the database directly in SQL Server, and can be restored smoothly by the following me

The original: Everyone is DBA (IV) SQL Server memory ManagementSQL Server's memory management is a huge topic that involves a number of concepts and techniques, such as the common Plan Cache, Buffer Pool, memory clerks, and so on. This article is only glimpse, which describe

1. Free commandFree-mTotal used free shared buffers Cachedmem:1526 182 1344 0 16 99-/+ buffers/cache:65 1460swap:3071 0 3071It clearly shows how much memory is in total, how much has been used, and how much is left.2. Top commandThere are two lines in the display result in the top command:mem:1563088k Total, 186784k used, 1376304k free, 17444k buffersswap:3145720k Total, 0k used, 3145720k free, 101980k cachedThis also very clear, just say that it is d

Label:When learning SQL Server memory management, see some term:memory node,memory clerk,memory object, very confusing, here to record their own understanding, so that follow-up learning 1,numa Architecture and Memory node

transaction is a series of operations performed as a single logical unit, and the operation of the database is based on the stacking of these logical units. Each logical unit must have 4 properties: atomicity, consistency, isolation, and persistence, so that it can become a transaction.The above is what we usually call (ACID). Atomic Nature The so-called atomicity is that a transaction must be an atomic unit of work, meaning its operability is not indivisible.Simply put: the so-ca

read to the data cache. The next time the user needs to access the data, the data will be read from the data cache. Because reading data in the data cache is several hundred times faster than reading data on the hard disk. Therefore, expanding the memory of the database server can effectively improve the database performance, especially when operating large databases. However, the database servers currentl

only involved in the MSITS test and has never been used. The synchronized database is unavailable, but can be accessed through snapshot. The number of snapshots is not limited, but different names must be selected. This is troublesome for database queries. There is no problem of data non-synchronization. The biggest advantage of replication is that data synchronization is fast, and users do not feel the changes, and user queries are not affected by data updates.Logshipping features ease of us

Memory Database In traditional database tables, due to the limitation of the physical structure of disks, the structure of tables and indexes is B-Tree, which makes such indexes very weak in the highly concurrent OLTP environment, although there are many ways to solve such problems, such as optimistic concurrency control, application caching, and distributed. However, the cost is still slightly higher. With the development of hardware over the years,

PHP snippet (send SMS, find address based on IP, display source code of Web page, check server for HTTPS, display faceboo** number, detect main color of image, get memory usage information) 1. Send SMS Call Textmagic API. Include the Textmagic PHP librequire (' textmagic-sms-api-php/textmagicapi.php ');//Set the username and password inform Ation$username = ' M

1. SQL Server, Access database This is all Microsoft's database, is a family, the basic operation is similar, often using the following paging statement: PAGESIZE: Number of records displayed per page CurrentPage: Current page number The name of the datasheet is: components Index PRIMARY key word is: ID 以下是引用片段： select top PAGESIZE * from components where id not in (select top (PAGESIZE*(CURRENTPAGE-

Tags: problem: Sele Generation Understanding Instruction script span writing colA problem has been encountered in recent projects:The system a database version is 2014, while the other 4-5 systems in the project have a database version of 2012.Then you need to reduce the version of 2014 to 2012.Attached: How do I query the database version? SELECT @ @version execute the SQL statement.Try the method of comparing many scripts on the net, the steps are a