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writable views

Joseph Sweet
Ranch Hand

Joined: Jan 29, 2005
Posts: 327

Anyone knows what writable views are? It's something about SQL. I know what views are, I am not sure what writable views can be.

I have encounter the term in some book, but of course they did not bother to explain what it means. We have all been taught in kindergarten what writable views are. Or haven't we?

I also tried google, but didn't find there anything substantial either.

We must know, we will know. -- David Hilbert
Paul Sturrock

Joined: Apr 14, 2004
Posts: 10336

writable views? I've not heard that term, but it could be another name for updatable views. Views are used as read only things normally, however if you write them to meet certain contitions you can update the data via the view. Such conditions could include:
  • No set operators
  • No aggregate functions
  • No sub-queries
  • No pseudo-columns

  • and so on.

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