Work With Queries
You can use the Historian Interactive SQL application to run a query against the data that is contained in the Historian database tables. A query is a SET
or SELECT
statement, or a combination of both of these SQL statements. When you execute a SELECT
or SET
statement in the Historian Interactive SQL application, you can execute only one SET
and one SELECT
statement per query.
The tables that you can query contain data and statistics associated with Historian tags, collectors, archivers, raw data, messages, comments, trend, and session settings. For information see Historian database tables.