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Data Management:Control modes

Last Updated:Mar 28, 2024

Data Management (DMS) provides three control modes for you to manage instances. You can configure the control mode for each database instance.

Overview

Control mode

Description

Scenario

Access method

Flexible Management

  • Allows you to manage data and schema for over 27 types of databases in a visualized manner.

  • Allows you to modify data and schema by using SQL statements or by performing visualized operations on the SQL Console page.

  • Has limits on data management features. For more information, see the Features supported by each control mode section of this topic.

  • The database instance does not require strict control.

  • The database instance is used by a single user.

  • Scenario in which secure hosting is disabled for a database instance:

    DMS administrators, database administrators (DBAs), and regular users must be granted the logon permission on the database instance. Then, they can log on to the database instance by using an account and a password. For more information about how to obtain the permission to log on to a database instance, see the Submit a ticket to apply for permissions section of the "Manage permissions" topic.

    Note

    The account and password are managed by relevant persons in your enterprise.

  • Scenario in which secure hosting is enabled for a database instance

    DMS administrators, DBAs, and regular users can log on to the database instance without the need to enter a password.

Stable Change

  • Supports all features that are included in Flexible Management mode and reduces limits on features such as data change. For more information, see the Features supported by each control mode section of this topic.

  • Provides solutions to allow databases to run more stably, such as lock-free changes and SQL review.

  • The database instance requires stability and a high level of continuous availability.

  • The database instance is used by a small-sized group that includes multiple users.

Security Collaboration

  • Supports all features that are included in Flexible Management and Stable Change modes.

  • Provides the DevOps feature to help you customize design specifications, R&D processes, and approval processes.

  • The data security of the database instance needs to be ensured.

  • Strict control over development and change processes is required.

  • Compliant management is required for enterprises.

By default, secure hosting is enabled for a database instance that is managed in Security Collaboration mode. DMS administrators, DBAs, and regular users can log on to the database instance without the need to enter a password.

Billing

Control mode

Billing method

Flexible Management

Free of charge.

Stable Change and Security Collaboration

Specific fees are charged. Both subscription and pay-as-you-go billing methods are supported. For more information about the pricing of DMS and how to purchase the DMS service, see the Billable items and prices section of the "Pricing" topic and Purchase the DMS service.

Configure the control mode of an instance

Features supported by each control mode

Category

Feature

Flexible Management

Stable Change

Security Collaboration

Instance management

Log on to a database instance

The database account and password are required for instance logon.

The database account and password are required for instance logon.

Alibaba Cloud account authentication is supported for password-free logon.

Synchronize the data dictionary of a database instance

Y

Y

Y

Manage permissions on instances

N

N

Y

Configure an IP address whitelist

N

Y: Source IP addresses must be controlled one by one.

Y: This feature can be globally enabled only over office networks.

Enable metadata access control

N

N

Y

Resource authorization granularity

Permissions on the database instance and database accounts.

Permissions on the database instance and database accounts.

Permissions on databases, tables, columns, and rows.

Operation authorization granularity

-

Permissions on features.

Permissions on the query, export, and change operations.

Authorization period

-

-

The authorization period can be customized. Permissions are automatically revoked after they expire.

Row-level data permission management

N

N

Y

Data export

Export SQL result sets

Y

Y

Y

Export databases

Y

Y

Y

Permission verification and process approval

-

-

Y

Maximum number of rows exported for free per day

One million

20 million

Unlimited

Maximum number of tables per export

Unlimited

Unlimited

Unlimited

Maximum capacity of tables per export

10 GB

Unlimited

Unlimited

Security and specifications

Use the operation audit feature

Y: Only part of the feature is supported and SQL statements executed within seven days are audited.

Y: Only part of the feature is supported and SQL statements executed within seven days are audited.

Y: All operations in this module are audited.

Use data watermarks

Y

Y

Y

Manage sensitive data

Y: You are charged for using this feature. Fine-grained permission management is not supported.

Y: You are charged for using this feature. Fine-grained permission management is not supported.

Y: You are charged for using this feature. You can enable this feature in the Sensitive Data module.

Manage security rules

N

N

Y

Database clone

Y

Y

N

Data classification

Y: You are charged for using this feature. You can enable this feature in the Sensitive Data module.

Y: You are charged for using this feature. You can enable this feature in the Sensitive Data module.

Y: You are charged for using this feature. You can enable this feature in the Sensitive Data module.

Schema change

Design schemas

N

N

Y

Synchronize schemas

Y

Y

Y

Create shadow tables for synchronization

Y

Y

Y

Perform lock-free DDL operations

N

Y

Y

Data change

Perform regular data change

N

Y

Y

Perform lock-free DML operations

N

Y

Y

Clear historical data

N

Y

Y

Change programmable objects by using stored routines

Y

Y

Y

Import data

Y

Y

Y

Risk identification before changes

N

Y

Y

Risk management after changes

N

Y

Y

Database stability assurance

Data tracking

Binary log files within the previous 1 hour can be tracked and downloaded.

Unlimited. Batch download is supported.

Unlimited. Batch download is supported.

SQL review

N

Y: Review rule configurations are supported, whereas process approvals are not supported.

Y: Review rule configurations and process approvals are supported.

O&M management

Database grouping

N

N

Y

Metadata access control

N

N

Y

R&D efficiency improvement

Collaborative R&D

N

N

Y

Cross-instance query

N

N

Y

Automatic generation of test data

Y: A maximum of one million rows of data can be generated at a time.

Y: A maximum of 100 million rows of data can be generated at a time.

Y: A maximum of 100 million rows of data can be generated at a time.

R&D process approval

N

N

Y: You can customize an R&D process approval based on your business requirements.

Logical database configuration

N

N

Y

Operations on multiple tables

Y

Y

Y

Scheduling of recurring data development task

N

N

Y

SQL console

Query and change a schema

Y

-

Y

Use the super SQL mode

N

N

Y

Manage schema versions

Y

Y

Y

Adjust the sensitivity level of fields

Y

Y

Y

Check the data quality

N

N

Y

Query data across multiple database instances

N

N

Y: This feature is supported after the cross-database query feature is enabled.

Database performance diagnosis and optimization

Y

Y

Y

SQL statements

Y

Y

Y

Execution plans

Y

Y

Y

Change of the character set

Y

Y

Y

SQL query timeout and interruption

N

N

N

Limits on the number of rows queried per day

N

N

N

Limits on the number of queries per day

N

N

Y

SQL statements that can be saved

Y

N

Y

Table size threshold for full-table scan

N

N

Y

Maximum number of rows returned per query

3,000 rows. Pagination is supported.

3,000 rows. Pagination is supported.

3,000 rows. You can specify whether to enable pagination.

Visualization of data query results

Y

Y

Y

SQL formatting

Y

Y

Y

Smart SQL completion

Y

Y

Y

Schema management

Schema comparison

Y

Y

Y

Schema editing

Y

Y

Y

Table schema synchronization

Y

Y

Y

Maximum number of data dictionaries exported

5

Unlimited

Unlimited

Design specifications of table schemas

N

N

Y

R&D process of table schemas

N

N

Tables created by other accounts, in other databases, and in self-managed databases support this feature.

Manage schema versions

Three database versions can be retained.

Twenty database versions can be retained.

Fifty database versions can be retained.

Code generator

N

N

Y

Data dictionary synchronization

N

N

Y

Topologies

-

-

Y

  • N: not supported

  • Y: supported

  • -: N/A

FAQ

  • Q: Can multiple instances consume the same quota of the Security Collaboration control mode?

    A: Yes. However, the instances cannot consume the same quota of the Security Collaboration control mode at the same time. After DMS completes data or schema changes on an instance that is managed in Security Collaboration mode, the administrator or DBA can change the control mode of the instance that consumes the quota to Flexible Management and then change the control mode of another instance to Security Collaboration.

  • Q: Can I execute SQL statements such as UPDATE and DELETE statements to change data of instances that are managed in Stable Change mode on the SQLConsole tab?

    A: No, you cannot execute such SQL statements on instances that are managed in Stable Change mode on the SQLConsole tab. If you want to change data or schema of an instance that is managed in Stable Change mode, submit a ticket. For more information, see Lock-free data changes and Lock-free schema changes.