nosql column database

place_x place_y place_z Table four (for saving player_inveneory) ID #这是这张表的id以后可以跟别的表格关联 mid #用于关联主表 inveneory This is the case for the relational database that has the different structure of the event storage rules, and then stored as follows (I do not draw the table) 1. ID timestamp cause player_uid player_experience player_age 1 "2013-05-23t1 : 50:00-0600 " " creeper " " 992348908

Key-Value Store databaseTemporary: as memcached. The temporary key-value database stores the data in memory, which in two cases results in the loss of data, the first is the power outage, but the data content exceeds the memory size. The benefits of this treatment are very fast.Permanent type: such as Tokyo Tyrant, flare and RomaThe two are both types: Redis. Redis first data in memory, and then meet certain conditions (the default is 15 minutes more

Tags: relational data table NoSQL database L database Combat div operation Field Why NoSQL is produced: The fact that relational databases are not good at doing so is the reason why NoSQL is Born: Large number of data write operationsThe book is written "la

the time, I later on the Internet access to more information, found that my understanding is only partial. (Even the author's understanding is wrong, such as the author of 2.1.5 The consistency of the simple understanding of the role of check constraints) in fact, the primary foreign KEY constraints, check constraints are the scope of database integrity (why is the integrity of the acid in the no longer?) I understand that because it only checks the

Label:In the past, we only needed to learn and use a database technology to do almost all of the database application development. Because the mature and stable relational database products are not many, and for you to choose the free version is even less, so the Internet domain basically chose the free MySQL database.

In-depth analysis of NoSQL database distributed algorithms (graphic details), nosql text Although the NoSQL movement has not brought about fundamental technological changes to distributed data processing, it still triggers overwhelming research and practices on various protocols and algorithms. In this article, I will

NoSQL databases: data consistency, nosql Database ConsistencyNoSQL Database: Data ConsistencyRead consistency High ConsistencyAccess any node in the cluster at any time, and the data obtained is consistent; User consistency is consistent with the data obtained during cluster access for the same user;Solve user consi

, (4) There is no need for high data consistency, (5) for a given key, it is easier to map complex values of the environment.A common NoSQL database is shown in table 3.Table 3 Common NoSQL databases Classification Instance Key value (key-value) store database * Riak: An open sourc

are high, (4) There is no need for high data consistency, (5) for a given key, it is easier to map complex values of the environment.A common NoSQL database is shown in table 3.Table 3 Common NoSQL databases Classification Instance Key value (key-value) store database * Riak: An o

explanation for NoSQL is "non-relational", and "not only SQL" is also accepted by many people. (The term "NoSQL" was first used in the name of a lightweight relational database in 1998.) ）NoSQL is the most used Key-value storage, of course, there are other document-type, column