aws database migration

constructor of the class file PortalContext.cs to remove the setting that removes the current database from rebuilding the new database when the database model has changed.Static Portalcontext () { database.setinitializer1>, in the Package Manager console, execute the statement:Pm> enable-migrations-enableautomaticmigrationsAfter successful execution, add the

Do database migration is an egg pain, do database design, often do not consider the scalability of data architecture, because do database migration is not to do database design people.Before doing such a

Use EF Code First to build a simple ASP. net mvc website, which allows database migration and efmvc This article uses EF Code First to build a simple ASP. net mvc 4 website and allow database migration. Create an ASP. net mvc 4 website. Create the Person class in the Models folder. public class Person {

Database migration: migrate the file system to the ASM system environment: Operating System: AIX5.3-08 Oracle: Oracle10gR21. perform the operation and select a feasible migration solution. 2. Preparations, create an ASM disk group and start an ASM instance. 3. medium stage: complete the migration of parameter files, co

Code First database migration under ASP. net mvc 4, asp. netmvc 1. Enable the command 1. Open the console: View> other Windows> Package Manager Console; 2. Start database migration and execute the command: enable-migrations 　　After the creation is successful, the migrations directory will be added. If the following er

Label:You will use the Entity Framework code to migrate some changes to the model class for the first time, so the change applies to the database 1. Click the right mouse button on the Movies.mdf file in the app-data folder and select Delete to delete the movie database. 2. from the Tools menu, click Library Package Manager and then Package Manager console . Prompt for input in Package Manager console win

The main framework (zkwebframework) is a database migration based on the dbcontext of the Assembly.For example, the Yimei.main assembly:DbContext name is: YimeimigrationdbcontextThere is a static initialization function {static yimeimigrationdbcontext ()} in the Yimeimigrationdbcontext classThe configuration for data migration is stored in the function.Database.s

BackgroundCode first when the model is modified, to persist in the database, the original database is always deleted and then created (dropcreatedatabaseifmodelchanges), this time there is a problem, when our old database contains some test data , we can introduce the data migration function of EF when the original dat

BackgroundCode first when the model is modified, to persist in the database, the original database is always deleted and then created (dropcreatedatabaseifmodelchanges), this time there is a problem, when our old database contains some test data , we can introduce the data migration function of EF when the original dat

Execute a: New database in Package Manager console: 1, add-migration init[name] (add migration script for pending model changes) 2, update-database (update pending migration to database) * * * * ***********************************

Oracle 11gR2 Database and Active Data Guard migration case, 11gr2guard The customer's core system is composed of an Oracle Database 11.2.0.3.4 single machine and an Active Data Guard, which run on two PC servers respectively. The Oracle Linux 5.8 x86_64bit Operating System, the two servers are not connected to storage devices. Due to old equipment and other reaso

We often need to migrate data, migrate to more advanced hosts, migrate to remote rooms, migrate to different platforms ... First, Exp/imp: This is the most commonly used the simplest method, is generally based on the application of the owner-level to do export import. Operation Method: In the new library to establish a good owner and table space, stop the old Library application, in the old library do exp user/pwd owner=xxx file=exp_xxx.dmp log=exp_xxx.log buffer=6000000, dmp file to the new

PHP implementation of REDIS database specified library number migration method This article mainly introduces the implementation of the Redis database library number migration method, involving the operation of the Redis database skills, very practical value, the need for f

The biggest headache after codefirst is that data changes cause database deletion and re-creation, which will lead to data loss. The seeding method described in musicstore can only meet the needs of the next test. The data migration function is introduced in entityframework5.0 to solve this problem. Step 1: Ef5.0 is required. It is best to use nuget for installation. Tool --> library package manager --> pac

Tags: Database SQL DBA SQL ServerAn upgrade migration from SQL Server 2005 to SQL Server 2008 was completed last weekend, essentially a server migration process. The more complex is the replication relationship on this server itself as both a publisher and subscriber, so the entire migration must also ensure that these