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.
Charging an electric car at home costs about  Â£3.00 for a full charge or 2p per mile. Average overnight electricity rate is 10p per kWh, which means charging your car for as little as 2p per mile. Fully charging a 30kW Nissan LEAF will cost about Â£3.00 and give you about 150 miles of range. Based on an average 20 mile daily commute, this equates to only 40p per day.