If you specify a negative scale, Oracle Database rounds the actual data to the specified number of places to the left of the decimal point. For example, specifying (7,-2) means Oracle Database rounds to the nearest hundredths, as shown in Table 26-1.
McCann (2000) found that households in communities with good transit use save an average of about $3,000 annually on transportation costs. Litman (2004) found annual transportation cost savings of about $1,300 per household in cities with well-established rail transit systems compared with cities that lack rail.
If you choose to leave your car at home, there are several options for transportation to and from the airport. Charlotte has bus, train and taxi services; the cheapest options are the bus and train. You can ride either for $1.75 per ride, and they operate 20 hours a day. Express bus fare will cost you $2.40. A taxi is the most direct route and costs about $20 per trip within six miles of the airport.