DROP SCHEMA removes schemas from the database. Use the CASCADE parameter to drop a schema containing one or more objects. In Oracle: drop user schema2 cascade How to achieve the same in SQL Server? ; Second, use the IF EXISTS option to conditionally delete schema only if it exists. With CASCADE, the system drops all schemas that have user_name as the owner, in addition to dropping the user_name. Examples DROP SCHEMA. So, here's an update to your script for MSSQL. schema [,…] [ CASCADE | RESTRICT ] Parameters Syntax: DROP SCHEMA [IF EXISTS] schema_name [ CASCADE | RESTRICT ]; Let’s analyze the above syntax: First, specify the name of the schema from which you want to remove after the DROP SCHEMA keywords. Specify CASCADE to drop all objects in the user's schema before dropping the user. In the following example, the schema "joeschma" is dropped: The command line syntax for dropping a user can be seen below: DROP USER edward CASCADE; If a user owns any database objects, that user can only be dropped with the Oracle DROP USER CASCADE command. The RESTRICT keyword is not optional. Permanently removes a schema from the database. Be sure that you want to remove the schema before you drop it, because DROP SCHEMA is an irreversible process. A schema can only be dropped by its owner or a superuser. If you don’t specify the schema name explicitly, the statement assumes that you are removing the table from your own schema. If RESTRICT is specified and if any schemas have user_name specified, the system does not drop the user and the schema. The RESTRICT keyword enforces the rule that no objects can be defined in the specified schema for the schema to be deleted from the database. CASCADE . The Oracle DROP USER CASCADE command drops a user and all owned objects. e.g., database1 schema1 schema2 table1 table2 Drop schema: drop schema database1.schema2 The schema can not be dropped. Second, use the IF EXISTS option to conditionally to delete schema only if it exists. When is not specified a non-cascaded drop will be performed. Syntax DROP SCHEMA [ IF EXISTS ] [database.] To delete the schema, we will first drop the dependent object, and for this, we will right-click on the myschema and select the Drop cascaded option from the given drop-down list. This will allow you to DROP ALL Schema objects, and THEN you'll have to add a DROP SCHEMA [schemaname=@schema] after this script executes.. (I use a guid for Schema names, so if you DONT you'll have to change the @schema to varchar or sysname works and get rid of CAST(@schema)) RESTRICT returns a warning about existing foreign key references and does not drop the schema. This will only drop the specified schema, dependent objects of the schema will be invalidated but not dropped. CASCADE drops the schema and all objects in the schema, including tables with primary/unique keys that are referenced by foreign keys in other tables. If you want to delete schema only when it is empty, you can use the RESTRICT option. The invalidated object can be revalidated when an object that has same schema name is created. Example. Step5 The drop cascade schema popup window will appear on the screen, where we click on the Yes button for deleting the dependent objects. RESTRICT is the default. SQL Server: how to drop a schema and cascade the delete operation to all its objects? In order to drop a user, you must have the Oracle DROP USER system privilege. In this syntax: First, specify the name of the schema from which you want to remove after the DROP SCHEMA keywords. DROP SCHEMA name RESTRICT. 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