Basic search is useful and will fulfill most of the user's search needs. However, there are still some limitations. One such limitation is that basic search allows you to perform searches based on inclusive logic but not exclusive logic. For example, if you need to search for issues in all but one project, you will have to select every project except for the one to be excluded since the basic search interface does not let you specify exclusions.
This is where advanced search comes in. With advanced search, instead of using a field selection-based interface, you will be using what is known as the Jira Query Language (JQL).
JQL is a custom query language developed by Atlassian. If you are familiar with the Structured ...
