I have saved site as template in solution gallery of a site. After that how can I create different site collection in same web application using this template?
My Requirement is that some new site collections to be create with new database and this site collection has some document libraries ,content types and site columns. So every time when i create new site collection just i want to use site template is it can be possible?
Best practices would tell you not to do this because it's not always going to work, depending on Site type, language settings etc. But you can do it by following these steps:
Save, download, and upload a SharePoint 2013 site as a template
You cannot use the template to create a new sitecollection but you can use the template to create a subsite within a different sitecollection, like described by Rafael. Just make sure that same sitecollection features are active on the site where you want to re-use the template.
