Help Center/ Data Lake Insight/ Spark SQL Syntax Reference/ Datasource Connections/ Creating a Datasource Connection with an OpenTSDB Table/ Querying an OpenTSDB Table
Updated on 2024-08-19 GMT+08:00
View PDF

Querying an OpenTSDB Table

This SELECT command is used to query data in an OpenTSDB table.

  • If no metric exists in OpenTSDB, an error will be reported when the corresponding DLI table is queried.
  • If the security mode is enabled, you need to set conf:dli.sql.mrs.opentsdb.ssl.enabled to true when connecting to OpenTSDB.

Syntax

1
 
SELECT * FROM table_name LIMIT number;

Keywords

LIMIT is used to limit the query results. Only INT type is supported by the number parameter.

Precautions

The table to be queried must exist. Otherwise, an error is reported.

Example

Query data in the opentsdb_table table.

1
 
SELECT * FROM opentsdb_table limit 100;