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GowthamRaj K
2021-07-28 17:36:28 +05:30
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@@ -467,8 +467,6 @@ Following are some of the most commonly used constraints available in SQL −
- The OR operator is used to combine multiple conditions in an SQL statement's WHERE clause. - The OR operator is used to combine multiple conditions in an SQL statement's WHERE clause.
### IS NULL ### IS NULL
- The NULL operator is used to compare a value with a NULL value. - The NULL operator is used to compare a value with a NULL value.
### UNIQUE
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UNIQUE
The UNIQUE operator searches every row of a specified table for uniqueness (no duplicates). The UNIQUE operator searches every row of a specified table for uniqueness (no duplicates).