Like any other Database Hive also supports Relation, Arithmetic and Logical operators. Keeps an eye on return values as they changes if one of the operand is NULL.
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Hive Relational Operators
Below are Hive relational operators.
| Relational Operators | Description |
|---|---|
| A = B | Returns TRUE when A is equal to B, FLASE when they are not equal. Operand Types: All primitive types |
| A == B | Similar to = operator. Operand Types: All primitive types |
| A <=> B | Same as = and == operator for non-null values. For NULLS, returns TRUE if both are NULL, FALSE if one of them is NULL Operand Types: All primitive types |
| A <> B | Returns TRUE if A is not equal to B, otherwise FALSE. Returns NULL if A or B is NULL Operand Types: All primitive types |
| A != B | Similar to <> operator. Operand Types: All primitive types |
| A < B | Returns TRUE if A is less than B, and returns FALSE when A is greater than equal to B. Returns NULL if A or B is NULL, Operand Types: All primitive types |
| A <= B | Returns TRUE if A is less than or equal to B, and returns FALSE when A is greater than B. Returns NULL if A or B is NULL Operand Types: All primitive types |
| A > B | Returns TRUE if A is greater than B, and returns FALSE when A is less than equal to B. Returns NULL if A or B is NULL Operand Types: All primitive types |
| A >= B | Returns TRUE if A is greater than or equal to B, and returns FALSE when A is less than B. Returns NULL if A or B is NULL Operand Types: All primitive types |
| A [NOT] BETWEEN B AND C | Returns TRUE if A is greater than or equal to B AND A less than or equal to C, otherwise FALSE. NOT is optional, when used it inverts. Returns NULL if A, B, or C is NULL Operand Types: All primitive types |
| A IS NULL | Returns TRUE if A is NULL, otherwise FALSE. Operand Types: All types |
| A IS NOT NULL | Returns FALSE if A is NULL, otherwise TRUE. Operand Types: All types |
| A IS [NOT] (TRUE|FALSE) | Returns TRUE only if A meets the condition. Note: NULL is UNKNOWN, and because of that (UNKNOWN IS TRUE) and (UNKNOWN IS FALSE) both evaluate to FALSE. Operand Types: Boolean types |
| A [NOT] LIKE B | TRUE if string A matches the SQL simple regular expression B, otherwise FALSE. Returns NULL if A or B is NULL Operand Types: strings |
| A RLIKE B | , TRUE if any (possibly empty) substring of A matches the Java regular expression B, otherwise FALSE. Returns NULL if A or B is NULL Operand Types: strings |
| A REGEXP B | Same as RLIKE. Operand Types: strings |
Hive Logical Operators
Below are Hive Logical Operators.
| Logical Operators | Description |
|---|---|
| A AND B | Evaluates to TRUE if both A and B are TRUE, Evaluates to FALSE if either A or B is FALSE. NULL if A or B is NULL. Operand Types: boolean |
| A OR B | Evaluates to TRUE if either A or B or both are TRUE, FALSE OR NULL is NULL, otherwise FALSE. Operand Types: boolean |
| NOT A | Evaluates to TRUE if A is FALSE or NULL if A is NULL. Evaluates to FALSE if A is TRUE Operand Types: boolean |
| ! A | Similar to NOT A. Operand Types: boolean |
| A IN (val1, val2, …) | Evaluates to TRUE if A is present in any of the values. Operand Types: boolean |
| A NOT IN (val1, val2, …) | Evaluates to TRUE if A is NOT present in any of the values. Operand Types: boolean |
| [NOT] EXISTS (subquery) | TRUE if the subquery returns at least one row. |
Hive Arithmetic Operators
Below are Hive Arithmetic Operators.
| Arithmetic Operators | Description |
|---|---|
| A + B | Returns result after adding A and B. When you add integer with float, it returns the Float data type. Operand Types: All number types |
| A – B | Returns result after subtracting B from A. When you subtract an integer from the float, it returns the Float data type. Operand Types: All number types |
| A * B | Returns result after multiplying A and B. Operand Types: All number types |
| A / B | Returns result after dividing A by B. In most cases, the result would be in Double type. Operand Types: All number types |
| A DIV B | Returns the integer part resulting from dividing A by B. Operand Types: All number types |
| A % B | Returns the remainder resulting from dividing A by B. Operand Types: All number types |
| A & B | Gives the result of bitwise AND of A and B. Operand Types: All number types |
| A | B | Gives the result of bitwise OR of A and B. Operand Types: All number types |
| A ^ B | Gives the result of bitwise XOR of A and B. Operand Types: All number types |
| ~A | Gives the result of bitwise NOT of A. The type of the result is the same as the type of A. Operand Types: All number types |
