OrientDB – Drop Class The Drop Class command removes a class from the schema. It is important to pay attention and maintain a consistent schema. For example, avoid to remove classes that are super-classes of others. The associated cluster won”t be deleted. The following statement is the basic syntax of Drop Class command. DROP CLASS […]
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OrientDB – Truncate Class Truncate class will delete all records of clusters defined as part of class. In OrientDB, every class has an associated cluster with the same name. If you want to also remove all records from the class hierarchy, you need to use the POLYMORPHIC keyword. The following statement is the basic syntax […]
OrientDB – Alter Class Class and Property in OrientDB are used to build a schema with the respective attributes such as class name, super-class, cluster, number of clusters, Abstract, etc. If you want to modify or update any attribute of existing classes in the schema then you have to use Alter Class command. The following […]