Sql Revert

No database system can avoid a crash situation, even if you use a clustered, two-machine hot standby ... It is still not possible to completely eradicate the single point of failure in the system, and for most users, this expensive hardware investment cannot be sustained. So, when the system crashes, how to restore the original valuable data becomes an extremely important problem. In the recovery, the ideal situation is that your data files and log files are intact, so that only need to sp_attach_db, the data file attached to the new database, or in the downtime of the ...

No database system can avoid a crash situation, even if you use a clustered, two-machine hot standby ... It is still not possible to completely eradicate the single point of failure in the system, and for most users, this expensive hardware investment cannot be sustained. So, when the system crashes, how to restore the original valuable data becomes an extremely important problem. In the recovery, the ideal situation is that your data files and log files are intact, so only need to sp_attach_db, the data file attached to the new database, or in the downtime ...

The enterprise customers (in fact, all customers) who want to deploy the application to Windows http://www.aliyun.com/zixun/aggregation/13357.html ">azure" are most concerned about the security of their data. When you free up disk space and reassign it to other customers, make sure that the new owner cannot read the original data on the disk after freeing the space, which is sometimes overlooked in data protection. An extreme example is the removal of obsolete processing from the data center ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall DEDECMS station process Common but don't know how to solve the problem although it is already 1 o'clock in the morning more , but Kwong also sat in front of the computer to write "Dedecms station process common but do not know how to solve the problem" This article aims to record the recent work harvest, at least can say now with Dede ...

Content Summary: The data disaster tolerance problem is the government, the enterprise and so on in the informationization construction process to be confronted with the important theory and the practical significance research topic. In order to realize the disaster tolerance, it is necessary to design and research the disaster-tolerant related technology, the requirement analysis of business system, the overall scheme design and system realization of disaster tolerance. 　　Based on the current situation of Xinjiang National Tax Service and the target of future disaster tolerance construction, this paper expounds the concept and technical essentials of disaster tolerance, focuses on the analysis of the business data processing of Xinjiang national tax, puts forward the concrete disaster-tolerant solution, and gives the test example. Key words: ...

When it comes to big data, it has to do with Alibaba. The world's leading E-commerce enterprise, the amount of data processed every day is unmatched by any other company, it is also transforming into a real data company--mysql is an important weapon in the transformation of Alibaba. 　　A database architect who interviewed Ali, who believes Ali has the best performance of open source MySQL, beyond any relational database and NoSQL. In the 2009, Oracle acquired the copyright of MySQL by acquiring Sun, and the industry began to question the use of Oracle ...

This week's news of big data is rife with industry events, industry anecdotes and both. Today, small knitting here for everyone to tidy up this week with large data related to the news events can not be missed. 1. EMC releases the Hadoop release, named "Pivotal HD," on February 27, when EMC released its own Apache Hadoop release-pivotal HD, and also released a technology called HAWQ, Through HAWQ can greenplum analytical data ...

This week's news of big data is rife with industry events, industry anecdotes and both. Today, small knitting here for everyone to tidy up this week with large data related to the news events can not be missed. 1. EMC releases the Hadoop release, named "Pivotal HD," on February 27, when EMC released its own Apache Hadoop release-pivotal HD, and also released a technology called HAWQ, Through HAWQ can be greenplum analysis of the database with ...

Translation: Esri Lucas The first paper on the Spark framework published by Matei, from the University of California, AMP Lab, is limited to my English proficiency, so there must be a lot of mistakes in translation, please find the wrong direct contact with me, thanks. (in parentheses, the italic part is my own interpretation) Summary: MapReduce and its various variants, conducted on a commercial cluster on a large scale ...