java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection

Registered driver with driverClassName=oracle.jdbc.driver.OracleDriver was not found, trying direct instantiation.

2022-05-28 03:08:37.892 ERROR 15156 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection

        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489) ~[ojdbc-6.jar:11.2.0.4.0]

        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553) ~[ojdbc-6.jar:11.2.0.4.0]

        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254) ~[ojdbc-6.jar:11.2.0.4.0]

        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) ~[ojdbc-6.jar:11.2.0.4.0]

        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528) ~[ojdbc-6.jar:11.2.0.4.0]

        at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) [HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) [HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.2.0.jar:na]

        at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.2.0.

java.sql.SQLException: ORA-01017: invalid username/password; logon denied

2020-09-26 02:51:30.563 ERROR 15036 --- [           main] org.hibernate.hql.spi.id.IdTableHelper   : Unable obtain JDBC Connection

java.sql.SQLException: ORA-01017: invalid username/password; logon denied

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:389) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:382) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIfun.processError(T4CTTIfun.java:675) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIoauthenticate.processError(T4CTTIoauthenticate.java:448) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:383) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:776) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:432) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) ~[ojdbc-6.jar:11.2.0.4.0]

at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528) ~[ojdbc-6.jar:11.2.0.4.0]

at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]

at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]

at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]

at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) ~[HikariCP-3.2.0.jar:na]

at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) ~[HikariCP-3.2.0.jar:na]

at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.2.0.jar:na]

Web server failed to start. Port 8080 was already in use.

 

Error creating bean with name 'entityManagerFactory' defined in class path resource

 

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution at

ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

java.sql.SQLException: Listener refused the connection with the following error:

ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

 ^M

        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489) ~[ojdbc-6.jar:11.2.0.4.0]^M

        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553) ~[ojdbc-6.jar:11.2.0.4.0]^M

        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254) ~[ojdbc-6.jar:11.2.0.4.0]^M

        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) ~[ojdbc-6.jar:11.2.0.4.0]^M

        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528) ~[ojdbc-6.jar:11.2.0.4.0]^M

        at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) [HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) [HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.2.0.jar:na]^M

        at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.2.0.jar:na]^M

        at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:157) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]^M

        at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.1.8.RELEASE.jar:5.1.8.RELEASE]^M

        at org.springframework.jdbc.datasource.DataSourceUtils.ge

Neo4j

:play start 

:server status

 create( n:person (name : "Kabir" ) ) return n 

match (n) - [r] -> (m) return n,r, m  LIMIT 1

match ( n:person ) return n 

call apoc.load.json('file:/Users/Public/neoq.json') yield value return value limit 10

Elastic search

 Inverted index.  

Leaf query 

Compound query 

Inverted Database 

SQL vs DSL 

Table vs Index 

Document vs row 

Leaf query clause match_all 

Dev tools 

Term query