这是我的存储过程:
CREATE OR REPLACE PROCEDURE VIEWBROKERS
(o_username OUT USERS.USERNAME%TYPE)
AS
BEGIN
SELECT USERNAME
INTO o_username
FROM USERS
WHERE Role_ID = 3 ;
END VIEWBROKERS;
这是我调用存储过程的方法:
public ResultSet pullBrokers() {
ResultSet rs = null;
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
con = DriverManager.getConnection(Messages.getString("OracleUserManagement.0"), Messages.getString("OracleUserManagement.1"), Messages.getString("OracleUserManagement.2")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
String storedProcedure = "{call VIEWBROKERS(?)}";
CallableStatement statement = con.prepareCall(storedProcedure);
statement.registerOutParameter(1, java.sql.Types.VARCHAR);
rs = statement.executeQuery();
con.commit();
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
return rs;
}
最后,当我尝试打印结果时:
public class TEST {
public static void main(String[] args) throws SQLException{
OraclePullListOfUsers pull = new OraclePullListOfUsers();
ResultSet rs = pull.pullBrokers();
try {
while (rs.next()){
System.out.println(rs.getString(1));
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
我收到错误消息 ORA-01422:精确提取返回的行数超过了请求的行数
这很奇怪,因为表中只有两行数据......
如果有人能指出我正确的方向,那就太棒了!