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Trend adding on existing database

9/18/2019 5:03 PM	Rate (0)
endiguai Posts: 72 Rating: (1)	Hi everyone, I have WinCC V15.1 and I want to add a new trend into the historical data in the WinCC project. All the trends are stored into databases. This is what I want to ask to you: if I add a new trend on a tag table, I loose all the prevoius data that I stored into the databases? Thanks.
endiguai Posts: 72 Rating: (1)	Last edited by: endiguai at: 09/19/2019 11:38:56 Last edited by: endiguai at: 09/19/2019 11:54:36 Last edited by: endiguai at: 09/19/2019 13:51:34
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9/27/2019 4:21 PM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 4/23/2025 Posts: 15338 Rating: (1894)	Hello We need more information: LINKLINKLINK Bye Murof
	If this Information really helps, you could use the Rate function
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