Oracle constraint which column

Skip to primary navigation Skip to main content Skip to primary sidebar Home » Oracle » Oracle Sql » how to check all constraints on a table in oracle. Table of Contents. Share this: Email. Print Pocket. Leave a Reply Cancel reply. Sorry, your blog cannot share posts by email. The behavior you're describing can be achieved by negating with the not boolean operator a condition where all three columns are null :.

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Oracle - Check constraint on multiple columns Ask Question. Asked 7 years, 4 months ago. Active 6 years, 5 months ago. Viewed 3k times. Any thought on this? Improve this question. Mureinik k 49 49 gold badges silver badges bronze badges. Now, we attempt to insert a new row whose email value already exists in the email column:. Oracle issued the following error message indicated that the unique constraint has been violated:.

The following statement attempts to insert a new client with the company and phone that already exist:.