Step 1. Login to SQL Server Management Studio. The default login settings: User name: sa Password: DBmaster1234 Step 2. Locate the Stored Procedures section inside the AVREPORTER database. Step 3. Create a new query and delete the data with the following scripts: - Delete oldest 100 days data, but keep the 15 min datastamps: EXECUTE [dbo].[DeleteDataOnly_LastNDay_Keep15Min] 100 - Delete oldest 100 days data (all): EXECUTE [dbo].[DeleteDataOnly_LastNDay_All] 100 - Delete data between dates and keep the 15 min datastamps: EXECUTE [dbo].[DeleteDataOnly_BetweenDates_Keep15Min] '2016-01-01', '2017-01-01' - Delete all data from the given namespace, source and quantity: EXECUTE [dbo].[DeleteData] N'Namespace Name', N'Source Name', N'Quantity Name' - Delete all data from the specified namespace: EXECUTE [dbo].[DeleteData] N'Namespace Name', NULL, NULL - Delete all data that related to the specified quantity (in all namespace and all source): EXECUTE [dbo].[DeleteData] NULL, NULL, N'Current A'