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@@ -466,8 +466,7 @@ Following are some of the most commonly used constraints available in SQL −
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### OR
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- The OR operator is used to combine multiple conditions in an SQL statement's WHERE clause.
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### IS NULL
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The NULL operator is used to compare a value with a NULL value.
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- The NULL operator is used to compare a value with a NULL value.
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11
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UNIQUE
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