Creates a schema in the current database. This principal may own other schemas, and may not use the current schema as its default schema.
The statement does not cause an error, but does not create a schema. This statement must be executed as a separate batch. In that case, the referenced view must be created before the view that references it. This requires additional permissions, as described in the "Permissions" section later in this topic.
The new schema is owned by one of the following database-level principals: database user, database role, or application role. Ownership of schema-contained objects can be transferred to any database-level principal, but the schema owner always retains CONTROL permission on objects within the schema.
Beginning with SQL Server , the behavior of schemas changed. As a result, code that assumes that schemas are equivalent to database users may no longer return correct results. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Submit and view feedback for This product This page. View all page feedback. The ISO standard also supports a three-part naming convention.
However, the names used in both naming conventions are different. This schema is contained in each database. Each information schema view contains metadata for all data objects stored in that particular database.
Also, some views contain references to different classes of data such as character data or binary data. For example:. The visibility of the metadata in information schema views is limited to securables that a user either owns or on which the user has been granted some permission. As a security mechanism by allowing users to access data through the view, without granting the users permissions to directly access the underlying base tables.
View names must follow the rules for identifiers. Specifying the view owner name is optional. A column name is required only when a column is derived from an arithmetic expression, a function, or a constant; when two or more columns may otherwise have the same name, typically because of a join; or when a column in a view is specified a name different from that of the column from which it is derived. The statement can use more than one table and other views.
Appropriate permissions are required to select from the objects referenced in the SELECT clause of the view that is created. A view does not have to be a simple subset of the rows and columns of one particular table. It has no applicability to any updates performed directly to a view's underlying tables.
Encrypts the entries in sys. Binds the view to the schema of the underlying table or tables. The view definition itself must first be modified or dropped to remove dependencies on the table that is to be modified. All referenced objects must be in the same database. Otherwise, the Database Engine raises an error. In Azure Synapse Analytics, views currently do not support schema binding. This metadata enables the client-side APIs to implement updatable client-side cursors. Browse-mode metadata includes information about the base table that the columns in the result set belong to.
For more information about updatable views, see Remarks. A view can be created only in the current database. A view can have a maximum of 1, columns. When querying through a view, the Database Engine checks to make sure that all the database objects referenced anywhere in the statement exist and that they are valid in the context of the statement, and that data modification statements do not violate any data integrity rules.
A check that fails returns an error message. A successful check translates the action into an action against the underlying table or tables. If a view depends on a table or view that was dropped, the Database Engine produces an error message when anyone tries to use the view. If a new table or view is created and the table structure does not change from the previous base table to replace the one dropped, the view again becomes usable.
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