通过EC2上的节点OracleDB模块连接到OracleDB

Question

I'm having trouble getting a connection established to my OracleDB that resides on a different system. From what I've learned from the Oracledb Node module Documentation , the connection setup should look like this:

oracledb.getConnection(
  {
    user          : "hr",
    password      : "welcome",
    connectString : "localhost/XE"
  }
  //fun querying goes here

I've reviewed the oracledb module documentation, however I cannot seem to find the syntax by which I need to follow when given certain variables. In order for me to secure a connection to the DB, I need to provide on the connection:

dbUserID: blah blah (maps to 'user' in Object),
dbPassword: Blahblahblah (maps to 'password' in Object),
oraclePort: (1521 as standard, but not sure where this goes in the object),
dbHostName: db.server.com (maps to 'localhost' in Object),
dbInstance: DBINSTANCENAME (not sure where this goes in object)

I'm fairly certain the hostname, port and instance are to be used in the 'connectString' section of the object, however I'm unsure how it should be formatted.

Any help and suggestions on how I might go about getting myself connected would be greatly appreciated!

EDIT: Im also receiving this error when the server is started up for the first time: [Error: ORA-12162: TNS:net service name is incorrectly specified] I thought I had solved this error but apparently I have not! Any suggestions would be appreciated.

Answer 1

Try the following:

   oracledb.getConnection(
      {
        user          : "hr",
        password      : "welcome",
        connectString : "db.server.com:1521/DBINSTANCENAME"
      }

Answer 2

Use 'lsnrctl services' on the DB server to check the service names available. The "Easy Connect" syntax uses the service name, not an instance name.

Check you have the right ports open.