Hi there, 
Have you go through the steps from this KB ?
Running Joget Workflow with Oracle 12c?

You can also follow this if you want to use docker container . https://medium.com/geekculture/run-oracle-database-21c-in-docker-351049344d0c
and once the database connection is successful, 

Ensure that the username and password as in the one that you use for when you configure the database connection. 

Example : 


hostname: localhost
port: 1521
sid: xe
service name: xe
username: system
password: C##oracle123

5)go to your JogetDX installation folder\wflow

5a. delete app_datasource.properties
5b. delete app_datasource-default.properties
5c.start tomcat

6) go to localhost:8080/jw/setup  (Let the database wizard page comes up > Setting Up Database#:~:text=When%20you%20are%20accessing%20Joget%20for%20the%20very%20first%20time%2C%20the%20database%20will%20need%20to%20be%20first%20initialized.%20You%20will%20be%20able%20to%20set%20up%20Joget%20with%20MySQL%2C%20MSSQL%2C%20Oracle%2C%20and%20PostgreSQL%20databases%20using%20this%20wizard.

And set as the one you have set earlier as example above,

db type = oracle
db host = localhost
db port = 1521
db name = xe
db user = system
db password = C##oracle123
include sample apps = y
include sample users = y

Hai John Smith , thanks for your fast response.

I got stucked when try to connect oracle, how to fix it? I ensure you that I have fill it out correctly.

abouy your question,

Have you go through the steps from this KB ?Running Joget Workflow with Oracle 12c?

Yes, I run the commands, but how to execute this command,

REM INSERTING into APP_APP
SET DEFINE OFF;
REM INSERTING into APP_DATALIST
SET DEFINE OFF;
REM INSERTING into APP_ENV_VARIABLE
SET DEFINE OFF;
REM INSERTING into APP_FD
SET DEFINE OFF;
REM INSERTING into APP_FORM
SET DEFINE OFF;
REM INSERTING into APP_MESSAGE
SET DEFINE OFF;

etc
 

need your help again,

Iam newbie on this stuff.

thanks.