key settings for jmeter3.3 JDBC connection to Oracle database (11.2.0.4)

Tested both URL works:
jdbc:oracle:thin:@//localhost:1523/ora11g
jdbc:oracle:thin:@localhost:1523/ora11g

JDBC URL takes forms:

• jdbc:oracle:thin:@host:port /databaseName
• jdbc:oracle:thin:@host:port :serviceName

Note that the "validation query" in my case should choose "select 1 from dual", otherwise I was getting "Cannot create PoolableConnectionFactory (ORA-00923: FROM
keyword not found where expected"

ojdbc8.jar is the jdbc driver downloaded from oracle.com
 

For SQL query , note that
1. There is no semi-colon (;) at the end of the sql statment, otherwise there is ora error code saying "ORA-00911: invalid character"



Above are key things I encountered when first time playing jmeter & oracle.

Also tested okay for 12.2c PDB.