shiftleft¶
This function is used to perform a signed bitwise left shift. It takes the binary number a and shifts it b positions to the left.
Syntax¶
shiftleft(BIGINT a, BIGINT b)
Parameters¶
Parameter | Mandatory | Type | Description |
|---|---|---|---|
a | Yes | DOUBLE, BIGINT, DECIMAL, or STRING | The value can be a float, integer, or string. If the value is not of the BIGINT type, the system will implicitly convert it to the BIGINT type for calculation. |
b | Yes | DOUBLE, BIGINT, DECIMAL, or STRING | The value can be a float, integer, or string. If the value is not of the BIGINT type, the system will implicitly convert it to the BIGINT type for calculation. |
Return Values¶
The return value is of the INT type.
Note
If the value of a or b is NULL, NULL is returned.
Example Code¶
The value 8 is returned.
select shiftleft(1,3);
The value 48 is returned.
select shiftleft(6,3);
The value 48 is returned.
select shiftleft(6.123456,3.123456);
The value NULL is returned.
select shiftleft(null,3);