What is not equal to 0 in SQL?

Not Equal Operator: != Evaluates both SQL expressions and returns 1 if they are not equal and 0 if they are equal, or NULL if either expression is NULL. If the expressions return different data types, (for instance, a number and a string), performs type conversion.

How do you write not equal in SQL query?

The SQL Not Equal comparison operator (!=) is used to compare two expressions. For example, 15 != 17 comparison operation uses SQL Not Equal operator (!=) between two expressions 15 and 17.

How do you write not equal to NULL in SQL query?

In SQL null is not equal ( = ) to anything—not even to another null . According to the three-valued logic of SQL, the result of null = null is not true but unknown. SQL has the is [not] null predicate to test if a particular value is null .

Is not equal to blank in SQL?

What is not equal in SQL?

SQL Not Equal is a boolean expression. It can return either True (if one expression is not equal to another) or False (if the expressions are equal). The above-given code will exclude the details of customer_id 1.

How do you compare non null expressions in SQL?

When you compare nonnull expressions, the result is TRUE if the left operand is not equal to the right operand; otherwise, the result is FALSE. If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL).

How to compare two expressions using SQL not equal operator?

The SQL Not Equal comparison operator (!=) is used to compare two expressions. For example, 15 != 17 comparison operation uses SQL Not Equal operator (!=) between two expressions 15 and 17. Note: “!=” and “<>” both will give the same results. The above query will produce all the results where the name is not equal to Joe.

What is the operator for equal to not equal?

Introduction Operator Description = Equals to <> Not Equal != Not Equal > Greater than