![]() At the beginning of the process, the introspector checks which catalogs are accessible and selects the fastest one available. ![]() Therefore, the introspector needs to be able to obtain information from any of them. So why not always use this catalog, or at least the DBA catalog for introspection? Unfortunately, in some cases, the user has no access to the fast catalogs and is stuck with the slowest option. It doesn’t do any unnecessary joining and doesn’t translate numerics to strings. The introspector then translates those string representations back into numeric values. However, retrieving the object names in the user’s schema from the DBA_objects view still takes a long time because this view joins a lot of tables and other views, and then translates numeric information into string representations. The DBA catalog is much faster, listing all objects without checking for access rights. For example, in my test database, a query from the ALL_objects view that retrieves names of objects from just one schema can take up to three seconds (and that’s just one query – the introspector performs a lot of them). This would be the ideal approach, but the problem is that the permission system in Oracle is very complex, and it takes a long time to verify a user’s access for each object. The ALL catalog lists only those objects to which the current user has access. A set of internal dynamic tables with the suffix $.Oracle has several such table and view collections: Oracle catalogsĪ catalog is a collection of tables and/or views, providing metadata about all objects from a database schema. The reason for this slowness is that queries to the Oracle catalog can take time. The Oracle introspector is peculiar: it differs from introspectors of other relational database management systems (RDBMSs) in that it is very slow – sometimes unbearably so. The Oracle introspector, however, remains solely my project. Since then, several of my teammates have followed suit with their own introspectors for various database management systems (DBMSs). The Grant with option permission means that a user can grant to or revoke from other users those permissions.Back in 2015, I was the only DataGrip team member working on database introspectors. You can use auto-completion for database objects.Ĭlick the grant field, from the drop-down near each permission, select Grant or Grant with option. In the Grants pane of the Modify dialog, click the Add button ( ). In the Database Explorer ( View | Tool Windows | Database Explorer), right-click a user or a role and select Modify Role. To do that, open the Modify dialog for the object and use the Grants pane. You can grant a user and a role permissions for database objects.įor other database objects, you can configure the permissions that each grantee has for the object, and the list of grantees. In the Preview pane, you can view and change the generated SQL code. ![]() Select and specify the necessary database settings. ![]() In the Create dialog that opens, enter the name of your user or role in the Name field. In this case, you must expand the data source tree to the database node, right-click the database node and select New | User or New | Role. In the Database Explorer ( View | Tool Windows | Database Explorer), right-click a data source node and navigate to New | User or New | Role.įor some databases, you need to specify a database where you want to create a role or a user. Users and roles are not supported for the following database vendors: BigQuery, Couchbase Query, HSQLDB, MongoDB, Redis. You can see a reference on node and object icons in the Data sources and their elements chapter of Database Explorer topic. Users and roles can be seen in the Database Explorer. Consult with the documentation of your database vendor for the list of settings and what type of concept the database uses for access control. Settings in the Create and Modify dialogs vary depending on the database vendor. In some databases, a role can be a user that has the login right. Both of them are used for access control and define a set of permissions. Different databases use concepts of users and roles to manage the permissions in your databases.
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