Function To Duplicate Database From Hosting

Function To Duplicate Database From Hosting – Let’s say you’re building an online store application using the Microservice architecture pattern. Most services require data to be stored in a specific database. Example,

Keep each microservice’s persistent data private to that service and only accessible through its API. Service transactions only apply to its database.

Function To Duplicate Database From Hosting

Function To Duplicate Database From Hosting

The service database is actually part of that service’s implementation. Other services do not have direct access to it.

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There are several different ways to keep persistent service data confidential. There is no need to provide a database server for each service. For example, if you are using a relational database, the following options are possible:

Private tables per service and schema per service have the lowest overhead. Using a schema for each service is attractive because it clarifies ownership. Some high-performance services may require their own database server.

It would be a good idea to create barriers to reinforce this modularity. For example, you can assign a different database user ID to each service and use a database access control mechanism, such as grants. With no barriers to encapsulation, developers will always be tempted to bypass a service’s API and access its data directly.

An example of a program using this approach is the FTGO program. Each service has database credentials that only give it access to its own (logical) database on a shared MySQL server. For more information, see this blog post.

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Function To Duplicate Database From Hosting

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Eventuate is Chris’ newest startup. This makes it easy to use the Saga pattern to manage transactions and the CQRS pattern to implement queries. To create a copy of an existing MySQL database, you need to use MySQL’s internal tools called

The utility is usually installed during MySQL server installation. It can be accessed from a computer terminal or command line using

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The dump result file can then be imported into a MySQL server to create a copy or backup of the original database.

A MySQL dump file is basically a set of instructions for creating tables and inserting values ​​taken from an existing database.

You can also use the file to copy a database from one MySQL server to another by adding

Function To Duplicate Database From Hosting

If you’re using a MySQL client to connect to a MySQL database server, then your client probably has a database mirroring feature for your convenience.

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Tab to help you create a MySQL dump file that can be used to copy the database:

You can choose which databases and tables you want to export from the server as a dump file. MySQL Workbench allows you to export each database table as your own

You will also find similar functionality in other MySQL clients such as PHPMyAdmin and SQLyog.

I send emails from time to time with the latest programming tutorials. Leave your email in the box below and I’ll send new content straight to your inbox! In a typical software life cycle, as a solution moves from one environment to another, from non-production environments to production environments, it is often necessary to create identical copies of databases in and between environments. Database cloning is one of the easiest ways to obtain data and database objects from the desired environment. In the Azure cloud, SQL Server databases are one of the main sources of hosting transactional data, which involves the need to transfer this data, as well as the database objects contained in the database, to the Azure platform by cloning the database.

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This assumes you have an Azure account with the necessary access to Azure SQL Server and Azure SQL Database. To get started, we need an existing Azure SQL server and database, which we will treat as the source database. In this case, for our exercise, we have an existing Azure SQL Server database as shown below. You can use any existing database or create a new one and populate it with sample data. This data is already populated with sample data available from the service itself.

Each Azure SQL Server database must be hosted on an Azure SQL Server instance. This database shown above is hosted on an Azure SQL Server instance as shown below. When you create an Azure SQL Database instance, full backups are created weekly by default, and other types of backups are created at regular and scheduled intervals.

To clone a database, we need at least one backup of the original database. You can configure the backup retention policy in the Manage Backups section by clicking the Configure Retention button as shown below.

Function To Duplicate Database From Hosting

Assuming you have at least one backup, let’s start creating a new database. Go to SQL Database Service and click Add to start creating a new database. You will see the screen as shown below. Select the appropriate subscription and resource group details. Specify the name of the new database as well as the SQL Server instance where it will be hosted. Adjust the database capacity if necessary or continue with the default values ​​and click Network. The screen shown below will appear.

How To Clone An Azure Sql Database

Configure endpoint network settings if necessary and click Advanced Settings. The screen shown below will appear. An easy way to clone an existing SQL Azure database is to use a backup of the original database and create a new database using the same backup. The default selection for existing data will be None. Select Sample under Use existing data settings.

After selecting this option, you will see the backup of the source database in the drop-down list of backups. The screen below shows the name of the backup in the SQL Server instance that contains the backup. This is a backup of the original database. Select this backup.

Depending on the configuration of the source database instance, you may see a message similar to the following, stating that the compute and storage settings of the source database may need to be changed to ensure backup compatibility. Click OK and then the “View + Create” button. A screen will appear where you can view all the configuration details you specified earlier as shown below.

In this case, we try to back up the original database and use it as the existing dataset in the new database that will be created. Click the Create button to start creating a new database. Once the database is created, navigate to the dashboard page, which should look like the one below.

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One of the quickest ways to verify that a newly created database contains database objects and data from the source database is to query the database using the query editor from the console. Click the Query Editor button and enter your database credentials. In the panel on the left you will see that all sample data from the source database is already available in this database. You can also query these database objects to verify the data. This newly created database is, as expected, an identical clone of the original database.

If you go to your SQL Server instance and click on Manage Backups, you will see that the newly created database is also backed up in addition to the original database. This backup will be updated from time to time according to the current backup policy. The same backup can be used as a source to clone this database.

In this way, we can use existing Azure SQL database backups to clone databases to Azure SQL Server instances.

Function To Duplicate Database From Hosting

In this article, we will briefly look at some use cases that may require database cloning. We saw how to work with SQL Azure database backups and use them to clone existing databases and manage backup retention policies so that backups are updated according to the desired frequency.

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Rahul Mehta is a software architect at Capgemini and focuses on cloud solutions. It runs on various cloud technologies such as AWS, Azure and others.

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