Comparison operators- pl/sql, PL-SQL Programming

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Comparison Operators

The Comparison operators can compare one expression to another. The outcome is always true, false, or null. Usually, you use a comparison operators in conditional control statements and in the WHERE clause of the SQL data manipulation statements. Now there are a couple of examples as shown below:

IF quantity_on_hand > 0 THEN
UPDATE inventory SET quantity = quantity - 1
WHERE part_number = item_number;
ELSE
...
END IF;


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