Data Management:Design schemas

Step 1: Create a schema design ticket

1. Log on to the DMS console V5.0.

2. In the top navigation bar, choose Database Development > Schema Change > Schema Design.

   Note

   If you use the DMS console in simple mode, move the pointer over the icon in the upper-left corner of the console and choose All Features > Database Development > Schema Change > Schema Design.

3. On the Schema DesignTickets page, click Schema Design in the upper-right corner.

4. Set the parameters for creating a schema design ticket and click Submit. The following table describes the parameters.

   Parameter	Required	Description
   Project Name	Yes	The name of the project. Enter a name that can help you identify the project.
   Project description	Yes	The business background of the project, such as the purpose or objective of the project. This reduces unnecessary communication.
   Change Base Database	Yes	The database on which you want to perform schema design operations. In this example, a database in Security Collaboration mode is selected. The type of the environment in which the database resides must conform to the R&D standards that correspond to the security rules of the database. For more information about the R&D process, see Schema design. In this example, the poc_dev development database is used as the change base database.
   Security Rules	No	The security rules that you want to apply. DMS automatically selects security rules after you specify a database.
   Associated Iterations	No	The iteration to be associated with the project. To select an iteration, click Select/Change Iteration. In the Iterations dialog box, find the iteration and click Associate in the Actions column.
   Change Stakeholder	Yes	The stakeholders of the schema design. All the specified stakeholders can view the ticket details and assist developers in the development and approval processes. Note Irrelevant users other than DMS administrators and database administrators (DBAs) are not allowed to view the ticket details.

Step 2: Create a physical table

1. Create a physical table

   In addition to the following methods, you can create a physical table on the SQLConsole tab. For more information, see the "Create a table" section in Manage the Wide Column model in the Tablestore console.

   • Use the GUI

     1. Click Create Physical Table.

     2. Enter the basic information about the table and modify the fields and indexes of the table.

     3. Click Save.

   • Execute SQL statements

     1. Click Import SQL Statements.

     2. In the dialog box that appears, enter the CREATE TABLE or ALTER TABLE statement as required and click OK.

        For example, you can execute the following statement to create a table named data_modify:

        CREATE TABLE `data_modify` (
          `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key',
          `name` varchar(256) NOT NULL COMMENT 'Name',
          `phone` varchar(32) DEFAULT NULL COMMENT 'Phone number',
          `sex` varchar(32) DEFAULT NULL COMMENT 'Gender',
          `email` varchar(256) DEFAULT NULL COMMENT 'Email address',
          `remarks` varchar(1024) DEFAULT NULL COMMENT 'Remarks',
          PRIMARY KEY (`id`)
        ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='Personal information';

     3. On the Create Physical Table: data_modify tab, confirm the table information and schema and click Save.

2. In the Precheck Result message, view the precheck result.

   • If the precheck is passed, click Confirm Changes and Submit to Save.

   • If only a warning is displayed, click Ignore the warning and continue to save.. Alternatively, click Disable, modify the table schema based on the R&D standards, and then click Save.

   • If an error is reported, check the cause of the error, click Disable, modify the table schema based on the R&D standards, and then click Save.

   Note

   • DMS verifies the preceding SQL statements for table creation or modification based on the R&D standards that are configured in the default security rules, and then reports errors and warnings, if any.

   • DMS provides nearly 40 R&D standards to help you create tables and modify fields and indexes. You can configure the R&D standards in security rules as required.

   After the precheck is passed, you are navigated to the Project Homepage tab. On the Tables Changed in Project tab, you can view the table that you modified or created and modify or delete other tables as required.

Step 3: Apply the schema changes to the destination development database

1. Click Perform Changes to Base Database.

2. In the Perform Changes to Base Database panel, view the base database, execution strategy, and schema change script, and click Submit.

After the schema change operation is approved, the system automatically applies the schema changes to the base database.

Step 4: Apply the schema changes to the destination production database

1. Click Perform Changes to Target Database.

2. In the Perform Changes to Target Database panel, select the destination database, enter script in the Script to Execute field, and then click Submit.

   Note

   You can also click Add Multiple Databases to execute the script in multiple production databases.

   After the schema change operation is approved, the system automatically applies the schema changes to the production database. You can check whether the schema changes meet your expectations on the SQLConsole tab of the production database.

3. Click Go to Next Node. In the message that appears, click Go to Next Node.

   After the ticket is closed, you can click each step to view the change and publishing records.