erd database

The content discussed in this article is based on the EF4.1 version. The existing database discussed in the article is not created by EF. This article assumes that you have a certain understanding of the code one migration, and if you do not understand the code one migration update database, you can view Migrate the update database in asp.net MVC Code-in-one mode

One, BACKUP database 1. Open SQL Enterprise Manager, click to open Microsoft SQL Server in the console root directory 2, SQL Server group--> double hit Open your server--> double-click to open the database directory 3, select your database name (such as Forum Database Forum)--> then click the Tools in the above menu--

With the music of the hardware snapping up the escalating, the group pays the pressure to meet the demands of a hundredfold or even thousand times the surge. As the last link of the purchase of goods, it is very important to ensure the users ' fast and stable payment. So in November 15, we had a comprehensive architecture upgrade for the entire payment system, which enabled us to stabilize 100,000 orders per second. It provides a strong support for the various forms of snapping up the second kil

MSSQL Server 2005 Restore the database Bak file, Web site using virtual Host station will often encounter, in general, the host has an online management program, but sometimes not, you need to restore the backup SQL database locally. In this case, MSSQL Server 2008 will also appear, sometimes "backup set of database backup and the existing XX

 http://blog.csdn.net/robinjwong/article/details/18502195 1. Relational database A relational database is a database that uses a relational model to organize data. The relational model was first proposed by IBM researcher Dr. E.f.codd in 1970, and in the following decades the concept of the relational model was fully developed and gradually became the mainst

on the right side can be For a closer Look: Er diagram of the basic is this, and there is a few pairs of relationship between the display, only need to right-click to select the order to set it can be er diagram Generation database How do you translate diagrams into the database we need after drawing the ER diagram? 1. First select the database we want to

MSSQL Server 2005 Restore Database Bak files, Web sites using Virtual host site will often encounter, in general, the host has an online management program, but sometimes not, you need to restore the local backup SQL database. In this case, MSSQL Server 2008 will also appear, sometimes the "backup set of database backup and the existing XX

Principles of database systems (I)-basic concepts of database systems and concepts of Database Systems Concept Model: (1) express the overall logical structure of the data, which is a comprehensive description of the data involved in the entire application project by the System user. (Overall) (2) modeling data from the perspective of user needs. (Viewpoint) (3

Oracle databases are very different from MSSQL data operations, but there are analogies in mirroring operations. This article is about how MSSQL database mirroring is implemented in Oracle databases, and what differences exist between them. First, the mirror database in the Microsoft SQL database is similar to an alternate d