单项选择题
A.SELECT *FROM CUSTOMER WHERE PRICE MORE THAN 500B.SELECT *FROM CUSTOMER WHERE PRICE BETWEEN 500AND C.SELECT *FROM CUSTOMER WHERE PRICE LIKE ’%500%’D.SELECT *FROM CUSTOMER WHERE PRICE>=500
ORACLE中,用来判断列值是否为空的操作符是()A.==NULLB.IS NULLC.AS NULLD.NU...
单项选择题ORACLE中,用来判断列值是否为空的操作符是()
A.==NULLB.IS NULLC.AS NULLD.NULLIS
在JDBC编程中执行完下列SQL语句SELECT name,rank,serialNo FROM employ...
多项选择题在JDBC编程中执行完下列SQL语句SELECT name,rank,serialNo FROM employee,能得到rs的第一列数据的代码是哪两个()
A.rs.getString(0)B.rs.getString("name")C.rs.getString(1)D.rs.getString("ename")
下面代码加载Oracle驱动正确的是哪一个?()A.DriverManager.register("oracl...
单项选择题下面代码加载Oracle驱动正确的是哪一个?()
A.DriverManager.register("oracle.driver.OracleDriver")B.DriverManager.forname("oracle.driver.OracleDriver")C.DriverManager.load("oracle.driver.OracleDriver")D.DriverManager.newInstance("oracle.driver.OracleDriver")