How to know the number of time series counts in Apache IoTDB?

Question

I am still new to IoTDB and am currently inserting my data into it from the old database. However I am not sure how many time series are there now. Want to know how to query the total number of time series amount under the database of Apache IoTDB?

Answer 1

You can select a column of time series that is not empty (for example, call that c1). Then, try to execute select count(c1) from root.db.** group by level=1 in Apache IoTDB. See if this gives you the time series amount.