DatabaseResourcesPath[] gives the list of directories that are searched to find database resources.

DataSourceNames[] returns a list of the names of data sources made available through DatabaseResourcesPath.

JDBC[arg, ...] is an object that holds parameters for making a JDBC connection to a database.

SQLCatalogNames[conn] returns the names of the catalogs in an SQL connection.

SQLConnections[] returns a list of the open SQLConnection objects.

SQLExpr[expr] allows a Mathematica expression to be stored in a database.

SQLResultSetClose[rs] closes a result set.

SQLResultSetColumnNames[rs] returns a list of {table, column} pairs for each column in a result set.

SQLResultSets[] returns a list of the open SQLResultSet objects.

SQLRollbackTransaction[conn] terminates an SQL transaction. SQLRollbackTransaction[conn, savepoint] returns to an SQLSavepoint.