Ecco qua il DB. Io vorrei ottenere la media della prima colonna sui 10 minuti.
Nella terza colonna ho il time composto come già indicato con precisione al millesimo.

33300 0 70719000748.000
1400 0 70719000750.000
34500 0 70719000752.000
35100 0 70719000754.001
34000 0 70719000756.002
35400 0 70719000758.002
33700 0 70719000800.002
34500 0 70719000802.002
33700 0 70719000804.002
33700 0 70719000806.002
32300 0 70719000808.003
32500 0 70719000810.003
32500 0 70719000812.003
34000 0 70719000814.003
32500 0 70719000816.003
33400 0 70719000818.004
33400 0 70719000820.004
33100 0 70719000822.004
33300 0 70719000824.005
34000 0 70719000826.005
33100 0 70719000828.005
33100 0 70719000830.005
33400 0 70719000832.005
33800 0 70719000834.005
34000 0 70719000836.006
34000 0 70719000838.006
33100 0 70719000840.006
33300 0 70719000842.006
33500 0 70719000844.006
33100 0 70719000846.006
32600 0 70719000848.006
33700 0 70719000850.007
33700 0 70719000852.007
33700 0 70719000854.007
33400 0 70719000856.007
33700 0 70719000858.007
33400 0 70719000900.007
33700 0 70719000902.008
33800 0 70719000904.008
33700 0 70719000906.008
33900 0 70719000908.008
33800 0 70719000910.008
33700 0 70719000912.008
34300 0 70719000914.008
34000 0 70719000916.008
34000 0 70719000918.008
34500 0 70719000920.008
34200 0 70719000922.008
34200 0 70719000924.008
34200 0 70719000926.008
34200 0 70719000928.008
33900 0 70719000930.008
33500 0 70719000932.008
33800 0 70719000934.008
34000 0 70719000936.008
34200 0 70719000938.008
34300 0 70719000940.008
34200 0 70719000942.008
34000 0 70719000944.008
34200 0 70719000946.008
34100 0 70719000948.008
34000 0 70719000950.008
34000 0 70719000952.008
33800 0 70719000954.008
34200 0 70719000956.008
34200 0 70719000958.008
34000 0 70719001000.008
34200 0 70719001002.008
34200 0 70719001004.009
34000 0 70719001006.009
34400 0 70719001008.009
34200 0 70719001010.009
34500 0 70719001012.009
34200 0 70719001014.009
34000 0 70719001016.009
34000 0 70719001018.009
34100 0 70719001020.009
34000 0 70719001022.009
33700 0 70719001024.009
34000 0 70719001026.009
34000 0 70719001028.009
34000 0 70719001030.009
33700 0 70719001032.009
34000 0 70719001034.009
33800 0 70719001036.009
33100 0 70719001038.009
33700 0 70719001040.009
34400 0 70719001042.009
34200 0 70719001044.009
34000 0 70719001046.009
34000 0 70719001048.009
35400 0 70719001050.009
34800 0 70719001052.009
35100 0 70719001054.009
34100 0 70719001056.009
34500 0 70719001058.009
33700 213 70719001100.009
33900 222 70719001102.009
35200 217 70719001104.009
35800 199 70719001106.009

Molte grazie dell'aiuto ...

mir