Next Page. Besides the SQL utility functions, Oracle inbuilt function library contains type conversion functions. There may be scenarios where the query expects input in a specific data type, but it receives it in a different data type.
Time to charge an electric car can take as little as 30 minutes or up to 12 hours. The time it takes to charge depends on the size of the battery and the speed of the charging point. A typical electric car (Nissan LEAF 30kWh) takes 4 hours to charge from empty with a 7kW home charging point. 3.7kW home charger provides about 15 miles per hour of charge. 7kW home charger provides about 30 miles per hour of charge.
Scott Briasco, of the Los Angeles Department of Water and Powerâs EV program, said that more than half of the 20,000 plug-in EVs in the utilityâs service area are charging this way. It isnât fast. Most cars charge at the rate of about 4 to 5 miles of range per hour. So, a mid-range vehicle like the Chevy Volt, with an all-electric range of 50 miles or so, will take 10 hours to completely recharge its battery. This kind of charging is relatively inexpensive and requires no special equipment.