package DisplayAuthors; import java.sql.*; public class DisplayAuthors { private static final String DATABASE_URL="jdbc:oracle:thin:@localhost:1521:orcl"; //here is 5 rows public static void main(String[] args)…
java.sql.SQLException: Could not establish connection to 192.168.8.111:10000/default: java.net.ConnectException: Connection refused: connect at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:117) 需要启动:hive --service hiveserver…
我安装了Oracle数据库,默认的数据库用户名是system,密码口令是安装过程中你自己设置的.可以先使用命令框,输入 sqlplus system; 然后再输入密码即可. 然后我的数据库连接工具使用的是DataGrip,我在使用DataGrip连接的时候发现,报了这个错误 Connection to Oracle failed.[66000][12505] Listener refused the connection with the following error:ORA-12505, T…
问题: 今天往Hive中导入Oracle数据的时候碰到了如下错误:Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor 解决办法: 导入数据的语句如下: /usr/bin/sqoop import --connect jdbc:oracle:thin:@20.20.20.…
org.springframework.dao.TransientDataAccessResourceException: ### Error updating database. Cause: java.sql.SQLException: Connection is read-only. Queries leading to data modification are not allowed ### The error may involve defaultParameterMap ### T…