Java JDBC : Altering table

Question

我想对这张表做如下改动:

添加:状态列 (varchar(20)) 日期列(时间戳)

我不知道该怎么做

String createTable = "Create table aircraft ("
                        +"aircraftNumber int,"
                        +"airLineCompany varchar(20),"
                        +"departureAirport varchar (20),"
                        +"fuelPercentage int,"
                        +"passengerCount int);";

Answer 1

你应该执行一个alter语句:

Connection conn = ...;
Statement s = conn.createStatement();
s.execute("ALTER TABLE aircraft " + 
          "ADD COLUMN state VARCHAR(20), " + 
          "ADD COLUMN `date` TIMESTAMP");