Oracle SQL Developer copy database step by step
问题 I'm having big trouble in copying an Oracle DB to the same server but with another name, to use as a development DB. I'm used to SQL Server, I'm new to Oracle (11g). I wanted to use the 'Database copy' from SQL Developer, but I'm getting errors all the way. First it was about missing tablespaces. Then when I manually created them in my new empty DB the errors were about missing users. I wanted to create the users manually, but then I first needed to create missing roles. When all that was