I have tried to Restoring the Site collection backup by using Power shell command,it throws an error message
Restore-SPSite : The operation that you are attempting to perform cannot be completed successfully. No content databases in the web application were available to store your site collection. The existing content databases may have reached the maximum number of site collections, or be set to read-only, or be offline, or may already contain a copy of this site collection. Create another content database for the Web application and then try the operation again.
I can Restore my site collection backup only in new web application, I can't in existing web application? how to solve this issues?