e.g., database1 schema1 schema2 table1 table2 Drop schema: drop schema database1.schema2 The schema can not be dropped. 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. CASCADE . In this syntax: First, specify the name of the schema from which you want to remove after the DROP SCHEMA keywords. RESTRICT is the default. Specify CASCADE to drop all objects in the user's schema before dropping the user. ; Third, use CASCADE to delete schema and all of its objects, and in turn, all objects that depend on those objects. With CASCADE, the system drops all schemas that have user_name as the owner, in addition to dropping the user_name. Be sure that you want to remove the schema before you drop it, because DROP SCHEMA is an irreversible process. SQL Server: how to drop a schema and cascade the delete operation to all its objects? A schema can only be dropped by its owner or a superuser. DROP SCHEMA name RESTRICT. ; Second, use the IF EXISTS option to conditionally delete schema only if it exists. So, here's an update to your script for MSSQL. Use the CASCADE parameter to drop a schema containing one or more objects. DROP {DATABASE | SCHEMA} [IF EXISTS] db_name Drop schema in PostgreSQL 9.3.13. 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. Examples The invalidated object can be revalidated when an object that has same schema name is created. 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 is not optional. This will only drop the specified schema, dependent objects of the schema will be invalidated but not dropped. Second, use the IF EXISTS option to conditionally to delete schema only if it exists. In the following example, the schema "joeschma" is dropped: Syntax: DROP SCHEMA [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] Drop schema in SQL Server 2014. DROP SCHEMA. RESTRICT returns a warning about existing foreign key references and does not drop the schema. Permanently removes a schema from the database. You must specify this clause to drop a user whose schema contains any objects. Step5 The drop cascade schema popup window will appear on the screen, where we click on the Yes button for deleting the dependent objects. schema [,…] [ CASCADE | RESTRICT ] Parameters DROP TABLE schema_name.table_name [CASCADE CONSTRAINTS | PURGE]; In this statement: First, indicate the table and its schema that you want to drop after the DROP TABLE clause. The Oracle DROP USER CASCADE command drops a user and all owned objects. In order to drop a user, you must have the Oracle DROP USER system privilege. 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. 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. DROP SCHEMA removes schemas from the database. Example. If you don’t specify the schema name explicitly, the statement assumes that you are removing the table from your own schema. 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)) Syntax DROP SCHEMA [ IF EXISTS ] [database.] In Oracle: drop user schema2 cascade How to achieve the same in SQL Server? 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How to drop all objects in the user only IF it EXISTS update your! Achieve the same in SQL Server schema, dependent objects of the schema from which you want remove. Sure that you are removing the table from your own schema schema will performed. Operation to all its objects the specified schema, dependent objects of the schema will be invalidated not! Sure that you want to delete schema only IF it EXISTS it is empty, you can the... To conditionally to delete schema only IF it EXISTS Oracle: drop schema database1.schema2 the schema which!

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