vix strategies

1, assigned The primary key is generated by an external program and must be specified before save (). Hibernate is not responsible for maintaining primary key generation. It is independent of hibernate and the underlying database, and can be

1, the subsequent use of the table to establish the index (note before inserting data to establish or after inserting but to Runstats): Description: Before inserting the data in the table, the index is also updated, so that a large log space is

The development of wireless network is like wildfire, its potential deep into consumers, bring huge profits to enterprises. As a result, more and more wireless networks are now exposed to threats, which do not cause sufficient attention to

Although the current SEO technology has not been the same scenery, more and more sites because of such a reason is Baidu K off, but can not be denied that SEO optimization compared to bidding, marketing still retain their advantages, stability,

With the further development of the Internet, more and more people begin to realize that the Internet can bring huge business opportunities for themselves, which is the representative of Cosmetology and plastic industry website, as long as through

As we Seoer said the bad point is to rely on search engines to eat. In our network "society", the search results are not the calculation of the visitors, not the site said, but the search engine to decide. Do within the net name jokingly Baidu for

Now has really entered the content of the era of the king, from the May Baidu crackdown on junk news, to the June Big K station, Baidu official has clearly indicated that this is to eliminate the garbage station, improve the quality of search

server| Strategy | Data at present, the management of image data is mostly based on the method of Table + entity, that is, the image data is stored in the specified computer directory in the file form, which only reflects the storage path of the

MySQL Common backup commandsCommon methods for mysqldump backup:　1. Export a DatabaseMysqldump-u User name-p password database name > exported file nameFor example# mysqldump-hhostname-uroot-ppwd Dataname >dataname.sql2. Back up all databases on the

Mainstream stackable switches support the 802.1p and 802.1Q standards that describe the priority and VLAN, which greatly improves the performance and makes it easier for users to use. Stackable switches have the advantages of rapid deployment, good

Author: Legend: BKJIA Spyware is terrible, and its threats are serious and disturbing IT staff. Protection of enterprise security environments requires highly professional anti-virus technology to protect all login points. Advanced kernel-level

The preface index accelerates the search speed, but reduces the insert, delete, and modify numeric values in the data column. That is to say, indexes reduce the write-related operation speed. This is because writing a piece of data not only needs to

With the continuous development of the Internet, users' consumption methods and concepts have also undergone significant changes. The emergence of a large amount of commodity information on the Internet provides consumers with more and more options

The rise of server virtualization and cloud computing technology does not mean that we no longer need good IT Disaster Tolerance planning, as well as the tape technology that may be used in these planning. The following are some disaster tolerance

Video files downloaded from the network often have some problems, such as the playback of any progress slider cannot be dragged or the file cannot be opened due to damage. If you choose to re-download, it will not only waste a lot of time, not to

Oracle Database is now the most widely used large-scale database management system. Only by improving the operational efficiency of the Oracle database system can we ensure the efficient operation of the entire computer's information system. There

This article mainly introduces the file system security in PHP, database security, user data security and other security-related issues, the need for friends can refer to the following I. File system securityIf PHP has root privileges and allows

In Oracle's Linux policy, the platform uses a complete copy of rhel (they vp spoke out of logo and brand, everything), but added the OracleLinux management package and Or Oracle's Linux policy, the platform uses a complete copy of rhel (they vp

Repeating forms is one of the most common and troublesome problems in multi-user Web applications. There are many scenarios where you will encounter duplicate commit issues, such as:Click the Submit button two times.Click the Refresh button.Use the

Sellers and friends should all look for Taobao experts to help promote the store, and some may even spend a lot of money to send the V task to Taobao experts, the V tasks of 100 yuan, 200 yuan, 500 yuan, or even thousands of yuan have been completed,