Update default connect string to match Oracle 19 PDB service name

Author: Christopher Jones

examples/README.md

@@ -14,7 +14,7 @@ connection string:
   module.exports = {
       user: "hr",
       password: process.env.NODE_ORACLEDB_PASSWORD,
-      connectString:"localhost/orclpdb"
+      connectString:"localhost/orclpdb1"
   };
 
   ```
@@ -33,13 +33,13 @@ connection string:
   example, to load them in the HR schema run:
 
   ```
-  sqlplus hr/welcome@localhost/orclpdb @demo.sql
+  sqlplus hr/welcome@localhost/orclpdb1 @demo.sql
   ```
 
   The demonstration objects can be dropped with `demodrop.sql`:
 
   ```
-  sqlplus hr/welcome@localhost/orclpdb @demodrop.sql
+  sqlplus hr/welcome@localhost/orclpdb1 @demodrop.sql
   ```
 
 ## Example Overview

examples/dbconfig.js

@@ -36,7 +36,7 @@
  *     [//]host_name[:port][/service_name][:server_type][/instance_name]
  *
  *   Commonly just the host_name and service_name are needed
- *   e.g. "localhost/orclpdb" or "example.com/XEPDB1"
+ *   e.g. "localhost/orclpdb1" or "example.com/XEPDB1"
  *
  *   The Easy Connect syntax was enhanced in Oracle Database 19c to
  *   allow more options, refer to the documentation:
@@ -84,7 +84,7 @@ module.exports = {
 
   // For information on connection strings see:
   // https://oracle.github.io/node-oracledb/doc/api.html#connectionstrings
-  connectString : process.env.NODE_ORACLEDB_CONNECTIONSTRING || "localhost/orclpdb",
+  connectString : process.env.NODE_ORACLEDB_CONNECTIONSTRING || "localhost/orclpdb1",
 
   // Setting externalAuth is optional.  It defaults to false.  See:
   // https://oracle.github.io/node-oracledb/doc/api.html#extauth