ALTER SCHEMA¶
Function¶
Changes the attributes of a schema.
Precautions¶
Only the owner of a schema, a user granted with the ALTER permission for the schema, or a system administrator has the permission to run the ALTER SCHEMA statement.
Only the schema owner or the system administrator can change the owner of a schema.
Syntax¶
Rename a schema.
ALTER SCHEMA schema_name RENAME TO new_name;
Changes the owner of a schema.
ALTER SCHEMA schema_name OWNER TO new_owner;
Changes the storage space limit of the permanent table in the schema.
ALTER SCHEMA schema_name WITH PERM SPACE 'space_limit';
Parameter Description¶
schema_name
Indicates the name of the current schema.
Value range: An existing schema name.
RENAME TO new_name
Renames a schema.
new_name: new name of the schema
Value range: A string. It must comply with the naming convention.
OWNER TO new_owner
Changes the owner of a schema. To do this as a non-administrator, you must be a direct or indirect member of the new owning role, and that role must have CREATE permission in the database.
new_owner: new owner of a schema
Value range: An existing user name/role.
WITH PERM SPACE
Changes the storage upper limit of the permanent table in the schema. If a non-administrator user wants to change the storage upper limit, the user must be a direct or indirect member of all new roles, and the member must have the CREATE permission on the database.
space_limit: storage upper limit of the permanent table in the new schema.
Value range: A string consists of an integer and unit. The unit can be K/M/G/T/P currently. The unit of parsed value is K and cannot exceed the range that can be expressed in 64 bits, which is 1 KB to 9007199254740991 KB.
Examples¶
Rename the ds schema to ds_new.
ALTER SCHEMA ds RENAME TO ds_new;
Change the owner of ds_new to jack.
ALTER SCHEMA ds_new OWNER TO jack;