Invisible

Oracle 12c – Invisible Columns!

Oracle 12c – Invisible Columns

Beginning with Oracle 12c columns may be marked “INVISIBLE” in CREATE and ALTER TABLE statements.

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Suppose you have code that uses “SELECT *” (no, really this sometimes occurs) and you need to add a column or columns? Oops! Code using “SELECT *” now breaks as does code using INSERT statements without a column list. (I know, ALL of your system’s code uses explicit column name lists in SELECT and INSERT ; this does not apply to your shop… (please excuse the sarcasm))