Question

Does anyone know the Derby equivalent for the following?

CREATE OR REPLACE VIEW myView AS SELECT ...

My internet searching hasn’t found anything clear. Wondering if I may have to do something similar to what I had to do for MSSQL:

IF EXISTS (SELECT TABLE_NAME FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME = 'myView')
    DROP VIEW [dbo].[myView];

CREATE VIEW [dbo].[myView] AS SELECT ...

In which case I assume I’ll have to head down this path.

Answer 1

It doesn’t exists.

Just try to perform the SELECT and if it fails catch it with the exception code:

   try {
      // Try to perform your query on the view.
   } catch( SQLException e ) {
      // Compare exception code. If equals to X0Y32 then create the view.
   }