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SQL-J Language Reference
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Reference Manual |
DROP CLASS ALIAS statementDROP CLASS ALIAS removes the specified class alias. You cannot drop a built-in class alias. SyntaxDROP CLASS ALIAS ClassAlias ExampleDependency SystemA class alias cannot be dropped if there is an object dependent on it such as a publication, view, constraint, or open statement. Tables are not dependent upon class aliases; a class alias is simply a syntactic shortcut for providing the type definition for columns and parameters. If there is an open cursor or a view that uses the class alias being dropped, the DROP CLASS ALIAS statement generates an error and does not drop the method alias. Dropping a class alias invalidates other (closed) statements that depend on the class alias. |
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