Querying Top Slow SQL Statements of an Instance

Function

This API is used to query top slow SQL statements of an instance.

Authorization Information

Each account has permissions to call all APIs, but IAM users must have the required permissions specifically assigned.

If you are using role/policy-based authorization, see the required permissions in Permissions Policies and Supported Actions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: Required)	Condition Key	Alias	Dependency
das::showCloudDBAInfo	read	-	-	-	-

URI

GET /v3/{project_id}/instances/{instance_id}/top-slow-log

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A
instance_id	Yes	String	Explanation: Unique ID of an instance Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
num	Yes	Integer	Explanation: Top N Constraints: N/A Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A
start_at	Yes	Long	Explanation: Start time Constraints: Unix timestamp, in milliseconds Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A
end_at	Yes	Long	Explanation: End time Constraints: Unix timestamp, in milliseconds Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
top_execute_slow_logs	Array of Table 4 objects	Explanation: Execution times Values: N/A
top_avg_query_time_slow_logs	Array of Table 5 objects	Explanation: Average execution duration list Values: N/A
top_max_query_time_slow_logs	Array of Table 6 objects	Explanation: Maximum execution duration list Values: N/A
rows_examined_exceeding	Array of Table 7 objects	Explanation: List of percentage of returned rows to scanned rows Values: N/A

**Table 4** top_execute_slow_logs
Parameter	Type	Description
template_id	String	Explanation: SQL template ID Values: N/A
template	String	Explanation: SQL template Values: N/A
databases	Array of strings	Explanation: Database name Values: N/A
times	Long	Explanation: Execution times Values: N/A
avg_query_time	Double	Explanation: Average execution duration Values: N/A
max_query_time	Double	Explanation: Maximum execution duration Values: N/A
avg_rows_examined	Double	Explanation: Average rows scanned Values: N/A
sum_rows_examined	Double	Explanation: Total rows scanned Values: N/A
avg_rows_sent	Double	Explanation: Average rows returned Values: N/A

**Table 5** top_avg_query_time_slow_logs
Parameter	Type	Description
template_id	String	Explanation: SQL template ID Values: N/A
template	String	Explanation: SQL template Values: N/A
databases	Array of strings	Explanation: Database name Values: N/A
times	Long	Explanation: Execution times Values: N/A
avg_query_time	Double	Explanation: Average execution duration Values: N/A
max_query_time	Double	Explanation: Maximum execution duration Values: N/A
avg_rows_examined	Double	Explanation: Average rows scanned Values: N/A
sum_rows_examined	Double	Explanation: Total rows scanned Values: N/A
avg_rows_sent	Double	Explanation: Average rows returned Values: N/A

**Table 6** top_max_query_time_slow_logs
Parameter	Type	Description
template_id	String	Explanation: SQL template ID Values: N/A
template	String	Explanation: SQL template Values: N/A
databases	Array of strings	Explanation: Database name Values: N/A
times	Long	Explanation: Execution times Values: N/A
avg_query_time	Double	Explanation: Average execution duration Values: N/A
max_query_time	Double	Explanation: Maximum execution duration Values: N/A
avg_rows_examined	Double	Explanation: Average rows scanned Values: N/A
sum_rows_examined	Double	Explanation: Total rows scanned Values: N/A
avg_rows_sent	Double	Explanation: Average rows returned Values: N/A

**Table 7** rows_examined_exceeding
Parameter	Type	Description
template_id	String	Explanation: SQL template ID Values: N/A
template	String	Explanation: SQL template Values: N/A
databases	Array of strings	Explanation: Database name Values: N/A
times	Long	Explanation: Execution times Values: N/A
avg_query_time	Double	Explanation: Average execution duration Values: N/A
max_query_time	Double	Explanation: Maximum execution duration Values: N/A
avg_rows_examined	Double	Explanation: Average rows scanned Values: N/A
sum_rows_examined	Double	Explanation: Total rows scanned Values: N/A
avg_rows_sent	Double	Explanation: Average rows returned Values: N/A

Example Request

"GEThttps://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/5c59fa7d6f09456b947f32922f9aeda1in01/top-slow-log?num=10&start_at=1736402167045&end_at=1736403967045"

Example Response

Status code: 200

Successful request

{
  "top_execute_slow_logs": [
    {
      "template_id": "1D7880577913B207",
      "template": "SELECT sleep(?);",
      "databases": [],
      "times": 21,
      "avg_query_time": 6.429124786740258,
      "max_query_time": 10,
      "avg_rows_examined": 0,
      "sum_rows_examined": 0,
      "avg_rows_sent": 1
    }
  ],
  "top_avg_query_time_slow_logs": [
    {
      "template_id": "1D7880577913B207",
      "template": "SELECT sleep(?);",
      "databases": [],
      "times": 21,
      "avg_query_time": 6.429124786740258,
      "max_query_time": 10,
      "avg_rows_examined": 0,
      "sum_rows_examined": 0,
      "avg_rows_sent": 1
    }
  ],
  "top_max_query_time_slow_logs": [
    {
      "template_id": "1D7880577913B207",
      "template": "SELECT sleep(?);",
      "databases": [],
      "times": 21,
      "avg_query_time": 6.429124786740258,
      "max_query_time": 10,
      "avg_rows_examined": 0,
      "sum_rows_examined": 0,
      "avg_rows_sent": 1
    }
  ],
  "rows_examined_exceeding": []
}