i want to download the pi sql data access to fetch the data from sql.
Hello and welcome dawei liu!
There exist multiple options and PI SQL Client through PI SQL Data Access Server (RTQP Engine) would be my recommendation for you since it reflects the next generation of PI SQL. Besides this PI OLEDB Enterprise Provider and / or PI OLEDB (Classic) Provider can be used where the latter provides access to PI Data Archive only and PI OLEDB Enterprise is the choice when working asset centric. Please refer to Developer Technologies overview.
Access to downloads is through OSIsoft Customer Portal but your SSO profile needs to be linked to a production site containing the software licenses. Please refer to How to Get an OSIsoft Customer Portal Login and How to Download Products.
Retrieving data ...