The **OR REPLACE** modifier in a table specifies that, if there is a base view with the name indicated, it will be replaced by the new view. If you replace an existing view, the query capabilities of the derived views may change (e.g. due to the addition of another field or a query restriction that did not previously exist). This may affect the derived views of this base view.
The **OR REPLACE** modifier in a wrapper, when there is already a wrapper with the same name, its definition is replaced by the new one.
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