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The USE statement selects a database and optional schema to use as the default.
Examples
--- Sets the 'memory' database as the default
USE memory;
--- Sets the 'duck.main' database and schema as the default
USE duck.main;
Syntax
The USE statement sets a default database or database/schema combination to use for
future operations. For instance, tables created without providing a fully qualified
table name will be created in the default database.