tencent cloud

1. API Description

Domain name for API request: dbbrain.tencentcloudapi.com.

This API is used to obtain SQL statement optimization suggestions.

A maximum of 20 requests can be initiated per second for this API.

Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example: dbbrain.ap-shanghai-fsi.tencentcloudapi.com

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

3. Output Parameters

4. Example

Example1 Obtaining SQL statement optimization suggestions

Input Example

https://dbbrain.tencentcloudapi.com/?Action=DescribeUserSqlAdvice
&InstanceId=cdb-c1nl9rpv
&SqlText=select * from t1 where id in ( ? )
&<common request parameters>

Output Example

{
  "Response": {
    "RequestId": "e2a51350-8c9f-11eb-bc0f-c9f5ab88d057",
    "Advices": "[{\"TableName\": \"t1\", \"TableSchema\": \"test\", \"Keys\": [{\"SqlText\": \"alter table `test`.`t1` add index index_0(`id`);\"}]}]",
    "Comments": "[]",
    "Schema": "test",
    "Tables": "[{\"TableName\": \"t1\", \"TableSchema\": \"test\", \"TableDDL\": \"CREATE TABLE `test` (\n  `id` varchar(36) NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC\"}]",
    "SqlText": "select * from t1 where id in ( ? )",
    "SqlPlan": "{\"Before\": [{\"Format\": \"Table\", \"Data\": {\"Names\": [\"id\", \"select_type\", \"table\", \"partitions\", \"type\", \"possible_keys\", \"key\", \"key_len\", \"ref\", \"rows\", \"filtered\", \"Extra\"], \"Data\": [ [1, \"SIMPLE\", \"t1\", null, \"ALL\", null, null, null, null, 1530, 10, \"Using where\" ]]}}], \"After\": [{ \"Format\": \"Table\", \"Data\": {\"Names\": [\"id\", \"select_type\", \"table\", \"partitions\", \"type\", \"possible_keys\", \"key\", \"key_len\", \"ref\", \"rows\", \"filtered\", \"Extra\"], \"Data\": [[1, \"SIMPLE\", \"t1\", null, \"ref\", \"index_0\", \"index_0\", 1056, \"const\", 51, 100.00, null]]}}]}",
    "Cost": "{\"Before\": 0.1, \"After\": 0.03, \"Ratio\": 90.61}"
  }
}

Example2 Obtaining a suggestion that there is no need to optimize SQL statements

Input Example

https://dbbrain.tencentcloudapi.com/?Action=DescribeUserSqlAdvice
&InstanceId=cdb-c1nl9rpv
&SqlText=select * from t1 where id = ?
&<common request parameters>

Output Example

{
  "Response": {
    "RequestId": "e2a51350-8c9f-11eb-bc0f-c9f5ab88d057",
    "Advices": "",
    "Comments": "",
    "Schema": "test",
    "Tables": "[{\"TableName\": \"t1\", \"TableSchema\": \"test\", \"TableDDL\": \"CREATE TABLE `test` (\n  `id` varchar(36) NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC\"}]",
    "SqlText": "select * from t1 where id in ( ? )",
    "SqlPlan": "",
    "Cost": ""
  }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

• Tencent Cloud SDK 3.0 for Python
• Tencent Cloud SDK 3.0 for Java
• Tencent Cloud SDK 3.0 for PHP
• Tencent Cloud SDK 3.0 for Go
• Tencent Cloud SDK 3.0 for NodeJS
• Tencent Cloud SDK 3.0 for .NET
• Tencent Cloud SDK 3.0 for C++

Command Line Interface

• Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.