BigInt from int code example

Example 1: java int to biginteger

// Primitive int
int myInt = 10
BigInteger bigInt = BigInteger.valueOf(myInt);
// Integer object
Integer integer = Integer.valueOf(myInt);
BigInteger bigInt = BigInteger.valueOf(myInteger.intValue());
bigInt = BigInteger.valueOf(myInteger);		// works too

Example 2: sql tinyint range

bigint	-2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807)	8 Bytes
int	-2^31 (-2,147,483,648) to 2^31-1 (2,147,483,647)	4 Bytes
smallint	-2^15 (-32,768) to 2^15-1 (32,767)	2 Bytes
tinyint	0 to 255	1 Byte

Example 3: max value of bigint in sql server

bigint	-2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807)	8 Bytes