What are table constraints? What are column constraints? How are these two different?

Table constraints are validations which can be applied on a group of columns of the table. For exp – CHECK, UNIQUE etc.

Column level constraints are validations which can be applied on individual columns of the tables. For exp – NOT NULL, DEFAULT etc.

Table ConstraintsColumn Constraints
It appears at the end of table definitionIt appears with the column of table definition
NOT NULL is not allowedNOT NULL is allowed
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