Schema and Catalogs
Database schema and catalogs can be used to hold collections of database components and objects suitable for particular users. They can be particularly useful when working with large databases. The functions SQLSchemaNames
can be used to learn the names of the schema and catalogs in the database. These can be used with the "Schema"
options to SQLTableNames
, and SQLColumns
to focus attention on particular parts of the database.
Listing catalogs and schema.
If you find that the examples in this tutorial do not work as shown, you may need to install or restore the example database with the DatabaseExamples`
package, as described in "Using the Example Databases"
First, the DatabaseLink
package is loaded and a connection is made to the publisher
This returns the schema names for the connection.
returns more information about the database schema.
This returns the catalog names; for this database there are not catalogs.