Mysql Create View If Not Exists

As the most popular open source database, MySQL is widely used in Web applications and other small and medium-sized projects. However, in many large IT companies, MySQL has gradually deviated from the original open source version after being highly optimized and customized, more like a branch, such as the Webscalesql of Facebook, which was not long ago open source. 　　Recently, Mr. Xiong has published a blog post, from the perspective of large-scale web site architecture development of the changes in MySQL application, here for you to share. This article mainly describes the different and ...

If a computer manufacturer, its database holds machine and accessories product information. The table used to save the whole product information is called pc; the table used to save the parts supply information is called parts. There is a field in the pc table, used to describe the type of CPU used in this computer; there is a field in the parts table, the description of the CPU model, we can think of it as a list of all CPU models. Obviously, the CPU used by this manufacturer must be a model that exists in the supply information sheet. At this time, two tables ...

In this issue of Java Development 2.0, Andrew Glover describes how to develop and deploy for Amazon elastic Compute Cloud (EC2). Learn about the differences between EC2 and Google App Engine, and how to quickly build and run a simple EC2 with the Eclipse plug-in and the concise Groovy language ...

Dbkiss is a database browsing tool made up of a single PHP file that supports MySQL and PostgreSQL databases, supports the import and export of data, can search the entire database or a single table, and provides an advanced SQL Editor, template retention, Multiple queries perform functions at the same time. Dbkiss is a one-file PHP database browser which is easy to upload and use. It su ...

The complete collection of SQL statement operations deserves to be permanently stored the following statements are part of the MSSQL statement and are not available in Access. SQL classification: ddl-data Definition language (create,alter,drop,declare) dml-Data Manipulation Language (Select,delete,update,insert) dcl-Data Control Language (Grant,revoke, Commit,rollback first, briefly introduce the basic statement: 1, Description: Create number ...

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

Editor's note: Jay Kreps, a chief engineer from LinkedIn, says that logs exist almost at the time of the computer's creation, and there is a wide range of uses in addition to distributed computing or abstract distributed computing models. In this paper, he describes the principles of the log and the use of the log as a separate service to achieve data integration, real-time data processing and distributed system design. Article content is very dry, worth learning. Here's the original: I joined the LinkedIn company at an exciting time six years ago. From that time ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall "the SEO new person to the website on-line" regarding the space choice to write a little, therefore today's year bin detailed to speak the basic knowledge of the space. 　　SEO rookie in the selection of host space, the main view of the following aspects of the space package, in the contact host their own site type, picture class or text class, the user in the south or north, but also economic strength, choose the right virtual host space to build the station. Host space: Web space is what you buy ...

Currently on the NT Server intrusion, there are many ways, such as the use of IIS vulnerabilities, but you do not know that there is no, in fact, with the NT Server associated with the SQL database server example is a very proportional means. Herbless intrusion of some sites, such as legoland.co.uk site is through the intrusion of SQL Server to gain control of the system and destroyed. So the protection of SQL Server is essential, here I have some loopholes for you to refer to. ---------------...