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User Guide
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MySQL
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- Tracking and Rolling Back Data (Not Promoted)
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- Intelligent O&M (New Version)
- Intelligent O&M (Old Version)
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RDS for MariaDB
- Account Management
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- Data Generator (Not Promoted)
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- Intelligent O&M
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TaurusDB
- Account Management
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API Reference
- Before You Start
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APIs (in OBT)
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Cloud DBA
- Registering a Database User
- Modifying a Database User
- Deleting a Database User
- Querying Intelligent O&M Quotas
- Querying Database User Information
- Querying Database Users
- Killing Sessions
- Querying the SQL Execution Plan (GET Request)
- Querying the SQL Execution Plan (POST Request)
- Querying Metadata Locks
- Querying Instance Sessions
- Querying InnoDB Lock Waits
- Enabling or Disabling SQL Explorer and Slow Query Log
- Querying Whether SQL Explorer and Slow Query Log Are Enabled
- Exporting Slow Query Logs
- Exporting SQL Explorer Data
- Querying Whether SQL Statement Concurrency Control Is Enabled
- Enabling or Disabling SQL Statement Concurrency Control
- Querying Concurrency Control Rules of SQL Statements
- Generate Keywords of a Concurrency Control Rule from the Original SQL Statement
- Creating a Concurrency Control Rule for SQL Statements
- Deleting a Concurrency Control Rule of SQL Statements
- Querying SQL Statement Concurrency Control Tasks
- Exporting the Top SQL Template List
- Exporting SQL Execution Time Distribution
- Exporting the Slow SQL Template List
- Viewing the Instance List on the Intelligent O&M Page
- Setting a Shared Link
- Deleting a Shared Link
- Executing a SQL Diagnosis
- Obtaining Diagnosis Results
- Creating an Instance Diagnosis Task
- Querying Instance Diagnosis Reports
- Obtaining an Instance Diagnosis Report
- Synchronizing the Instance List
- Deprecated APIs
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- Appendixes
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FAQs
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Product Consulting
- How Is DAS Billed?
- Which Data Sources Does DAS Support?
- Does DAS Support Multi-Region Access?
- Where Is SQL Execution Records Saved If I Enable This Function?
- What Should I Enter in the Database Column to Log In to a PostgreSQL DB Instance on the DAS Console?
- Will I Be Changed If I Enable Collect Metadata Periodically and Show Executed SQL Statements on the Add Login Page?
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Managing connections
- What Should I Do If I Can't Connect to My DB Instance Due to Insufficient Permissions?
- What Should I Do If I Can't Connect to My RDS for MySQL Instance?
- What Should I Do If I Can't Connect to My ECS (MySQL) Instance?
- What Should I Do If I Can't Connect to My RDS for SQL Server Instance?
- What Should I Do If I Can't Connect to My ECS (Microsoft SQL Server) Instance?
- What Should I Do If I Can't Connect to My RDS for PostgreSQL Instance?
- What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance?
- What Should I Do If I Can't Connect to My DDS Instance?
- What Should I Do If I Can't Connect to My GaussDB(for MySQL) Instance?
- What Should I Do If I Can't Connect to My GaussDB Instance?
- What Should I Do If I Can't Connect to My DDM Instance?
- How Do I View and Modify ECS Security Group Rules?
- How Do I View and Modify Firewall Rules?
- What Should I Do If My Connection Fails?
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Usage
- What Can I Do If Garbled Characters Are Displayed in the Exported Database Result Set?
- What Are the Precautions for Connecting DAS to a Third-Party Client?
- What Are the Username and Password for DAS?
- What Should I Do If Table Obtaining Times Out?
- How Do I Modify the Collation?
- When a user creates a data tracking task, an error message indicating that the current user does not have the OBS operator permissions is displayed.
- Resource Freezing, Release, Deletion, and Unsubscription
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Product Consulting
- Glossary
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More Documents
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User Guide (ME-Abu Dhabi Region)
- Service Overview
- Getting Started
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User Guide
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- Logging In to the DAS Console
- Adding Login Information
- Modifying Login Information
- Deleting Login Information
- Logging In to Databases Shared by Others
- MySQL DB Instance Management (Development Tool)
- Microsoft SQL Server DB Instance Management (Development Tool)
- PostgreSQL DB Instance Management (Development Tool)
- DDS DB Instance Management (Development Tool)
- Enterprise Change Approval
- Intelligent O&M
- FAQs
- Change History
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User Guide (Kuala Lumpur Region)
- Service Overview
- Getting Started
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User Guide
- Permissions Management
- Logging in to a DB Instance
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MySQL
- Account Management
- Database Management
- SQL Operations
- Table Management
- View Management
- Stored Procedure Management
- Event Management
- Trigger Management
- Function Management
- Data Import and Export
- Data Generator (Not Promoted)
- Tracking and Rolling Back Data (Not Promoted)
- Task Management
- Table Structure Comparison and Synchronization (Not Promoted)
- Intelligent O&M (New Version)
- Intelligent O&M
- RDS for SQL Server
- PostgreSQL
- DDS
- DDM
- Audit
-
FAQs
-
Managing connections
- What Should I Do If I Can't Connect to My RDS for MySQL Instance?
- What Should I Do If I Can't Connect to My ECS (MySQL) Instance?
- What Should I Do If I Can't Connect to My RDS for PostgreSQL Instance?
- What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance?
- What Should I Do If I Can't Connect to My DDS Instance?
- What Can I Do If a GaussDB(for MySQL) Instance Fails to Be Connected?
- What Should I Do If I Can't Connect to My GaussDB Instance?
- What Should I Do If I Can't Connect to My DDM Instance?
- How Do I View and Modify ECS Security Group Rules?
- How Do I View and Modify Firewall Rules?
- What Should I Do If My Connection Fails?
- Usage
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Managing connections
- Change History
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User Guide (ME-Abu Dhabi Region)
- General Reference
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Executing SQL Statements
This section describes how to execute various SQL statements.
Procedure
- Log in to the Huawei Cloud console.
- Click
in the upper left corner and select a region and project.
- Click
in the upper left corner, and under Databases, click Data Admin Service.
- In the navigation pane on the left, choose Development Tool.
You can also click Go to Development Tool on the overview page.
- Locate the DB instance that you want to log in to and click Log In in the Operation column.
- On the top menu bar, choose SQL Operations > SQL Query.
- In the upper left corner of the page, select a database from the drop-down list.
Figure 1 Selecting a database
- Enter a SQL statement in the SQL window and click Execute SQL.
Figure 2 Executing a SQL Statement
- Enabling SQL Input Prompt is recommended. It helps you select the required database, table, or field name when you enter a SQL statement in the SQL window.
- To protect query result sets from being displayed as garbled characters, select an encoding format other than the default encoding format, UTF-8.
- You can execute multiple SQL statements at a time. Separate them using semicolons (;). You can click Full Screen to view logics in SQL statements clearly.
- To execute some of the SQL statements, select the statements before executing them.
- To execute all SQL statements, do not select any SQL statements or select all SQL statements.
- View execution details of the current SQL statement and previously executed SQL statements in the lower part of the page.
Figure 3 Viewing execution records
- Click the Messages tab, view SQL execution details, including affected rows, progress, and time required.
Figure 4 Viewing messages
- On the Result Set tab, view SQL execution results.
Figure 5 Viewing result sets
You can also perform the operations described in Table 1 on result sets.
Table 1 Operations Function
Description
Copy Row and Copy Column
Copies a row or column for reuse.
Column Settings
Customizes the display of columns when there are a number of columns in the query result.
Convert binary to hexadecimal
Converts binary data in the result set into hexadecimal data for display.
Refresh
Refreshes changed data.
Row Details
Displays the column field name, type, and data of the selected row.
Add Row
Adds an empty row to the result set.
Submit
Allows you to view the SQL statements to be modified. After you click OK, the result set is updated.
Delete Row
Deletes the selected row, including data.
Export
The SQL, CSV, and Excel files are supported. No more than 7.84 MB of data with 10,000 records can be exported. The actual size of an Excel file may exceed 7.84 MB due to its format.
Export More
Redirects you to the data export page and allows you to export over 10,000 rows of data.
NOTE:
- If the result set involves a view, data in the result set cannot be edited.
- If the type of the result set is metadata, the data cannot be edited or displayed on multiple pages.
- If the result set involves multiple tables, data in the result set cannot be edited.
- If only one table is in the result set and does not contain all primary key columns or any primary keys, you cannot edit the data.
- Data in virtual tables (for example, tables generated during execution of a stored procedure) cannot be edited.
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