SQL Server uses triggers to update multi-table views.
The procedure is to use the update trigger to generate two virtual tables "inserted" to store the modified data information and the "deleted" table, then, update the corresponding data to the field information in the corresponding data table;
1. Create three tables
server| View
View is often used recently, but MSSQL server does not allow the update of view that is more than two base tables associated with it. As a result of the project needs, spent a night to study it. Take some time to record the process and the experience.
Let's look at the authoritative statement:
Updatable views:
Microsoft SQL
Server checkout repository (under current directory)SVN checkout svn://server IP address/5.2. Add some files yourself, or copy the previous items (such as the following three folders) to the current directory and ask SVN to help you manage code project document5.3, suppose I put the above three folders into the current SVN folder for SVN to manage, and then I'm going to add to the SVN repository: SVN add c
Make full use of the database optimizer through the UPDATE STATISTICS statement in Ibm®informix®dynamic Server (IDS). Read the brief description of this SQL statement in this article to learn how to use it to solve a variety of different problems. Discover the importance of updating statistics, and learn how to collect statistical information. Finally, look at the last FAQ section of this article for answer
For more information about the execution of bat files for scheduled tasks, I used to regularly update the server database. I wrote a simple bat file, starthttp: // localhost/jusaas/index. php /.... method name. I want to regularly execute this method to update my database, but when I set a scheduled task on the server
1. What is a view?
2. Why view;
3. order by in the view;
4. Refresh the view;
5. Update the view;
6. view options;
7. Index View;
To elaborate on the views (below) in SQL Server, you must have added the "Why to use views" section in "View (top) in SQL Server.
1. What is a view?
A view is a virtual table defined by a query. Unlike a physical table, the data in th
Recently, I checked the running status of the WSUS server and found that two computers are still in the "not reported" status. Because these two computers are far away from each other, therefore, the information cannot be seen from the log file, and the log on the WSUS server is too complex, so it gives up. However, this problem also occurs on a computer in my house two days ago. So I checked windowsupdate.
) throws IOException, Interruptedexception, keeperexception{ appclient client= New Appclient (); Client.connectzk (); Client.handle ();}Running the results in Hadoop is as follows:Summary: Zookeeper as a subproject in the Hadoop project is an essential module for Hadoop cluster Management, which is used primarily to control the data in the cluster, such as its management of NameNode in Hadoop clusters, and the Master electio in Hbase N, state synchronization between servers, and so on.
Views are often used recently, but MSSQL Server does not allow update operations on views associated with more than two base tables. Due to the project's needs, I spent a night studying it. Take some time to record the process and experience.
Let's take a look at the authoritative saying:
Updatable View:
Microsoft SQL Server 2000 enhances the updatable view cate
By default, when you use Ubuntu14.04, the installation package is updated from us.archive.ubuntu.com, the United States server, but the local network connection is slow to update, so consider replacing some of the following sources:Way:1. Open Filesudo Vim/etc/apt/sources.list2. Change the server address of the package updat
Due to server time errors, the following methods can be used to update the Linux server's system time:Method One:1, first Yum installs local ntpdate client, updates ntpdate cn.pool.ntp.org when using[email protected] ~]# Yum install ntpdate2, update with Ntpdate cn.pool.ntp.org. [Email protected] ~]# ntpdate cn.pool.ntp.orgSep 16:46:32 ntpdate[15965]: Adjust time
when there are no available objects in the cache pool, and when there are too many cached objects, the cache pool is compressed. In addition, the dynamic memory of the component is allocated through the private heap mechanism, avoid competition with new/malloc and reduce memory holes.
Scalability
You can set the performance parameters of the component according to the actual usage environment requirements (for example: the number of working threads, the size of various cache pools, the
: This article mainly introduces the idea of automatically connecting to the server to update the product. if you are interested in the PHP Tutorial, please refer to it. Idea of automatic product update
1. the (user) user starts RAW
2. (system) connect to the server and send the current version number
3. check data on
SQL server update from statement, sqlupdate
To update a table, use the where statement:
Copy codeThe Code is as follows:UPDATE Ttest SETStatusInd = 'active'WHEREId = 123
Note:
The table name after the update statement. aliases cannot be enabled.At this time, the id field is from the Ttest table (understandable)
However
For more information about the execution of bat files for scheduled tasks, I wrote a simple bat file named starthttp: localhostjusaasindex. php .... method name. I want to regularly execute this method to update my database, but when I set a scheduled task on the server (the server is win2003), it is not possible. When I manually click the bat file, I can execute
In VMware's vsphere sublimation, the role of vum is equivalent to the WSUS (Windows Update server) in the Windows environment, which can be batched, automated to complete the migration of large versions of the host ESXi hosts, and the tasks of minor version upgrades are loved by administrators.Vum also supports registering the plug-in with VMware vCenter Server a
error| Server
Error Scenario:
A 14274 error occurs when you attempt to update or delete a job created before SQL Server2000 after a change to the Windows host name. This error does not occur in SQL 7.0, but in a cluster environment, this error may also occur after you upgrade the SQL 7.0 virtual server to SQL Server2000.
Error Reason:
In msdb.. The name of SQL
) Create a database named Proget in SQL Server, and then run the Bmdbupdate.exe program in the Proget-dbchangescripter folder. The command-line menu appears, enter 3 (for the update operation), enter the database connection string, then enter Yes (for the database initialization operation), and then the database initialization operation.5) After completing the initialization of the database, modify the data
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