SQL IP to BigInt
ǰһƪ²©¿Í IP to Integer ÌṩµÄ SQL º¯ÊýÊÇ IP ת»»³É Integer µÄ·½·¨¡£ Integer µÄ×î´óֵΪ£º 2147483647£¨2^31 - 1£©¡£°´ÕÕ IP ת»»³ÉÕûÊýµÄËã·¨£¬»áËã³öÀ´´óÓÚÕâ¸öÖµµÄ£¬ËùÒÔ֮ǰÌṩµÄ IP ת»»³É Integer µÄ·½·¨»áËã³ö¸ºÖµ¡£ ÏÂÃæÊÇ IP to BigInt µÄת»»Ëã·¨£¬ ÕâʱºòÔËËã¾Í²»»áСÓÚÁã¡£
CREATE FUNCTION dbo.ipStringToBigInt
(
@ip CHAR(15)
)
RETURNS bigint
AS
BEGIN
DECLARE @rv bigint,
@o1 bigint,
@o2 INT,
@o3 INT,
@o4 INT
SELECT
@o1 = CONVERT(INT, PARSENAME(@ip, 4)),
@o2 = CONVERT(INT, PARSENAME(@ip, 3)),
@o3 = CONVERT(INT, PARSENAME(@ip, 2)),
@o4 = CONVERT(INT, PARSENAME(@ip, 1))
IF (@o1 BETWEEN 0 AND 255)
AND (@o2 BETWEEN 0 AND 255)
AND (@o3 BETWEEN 0 AND 255)
AND (@o4 BETWEEN 0 AND 255)
BEGIN
SET @rv = (@o1 * 16777216) +
(@o2 * 65536) +
(@o3 * 256) +
(@o4)
END
ELSE
SET @rv = -1
RETURN @rv
END
go
CREATE FUNCTION dbo.ipBigIntToString
(
@ip bigint
)
RETURNS CHAR(15)
AS
BEGIN
DECLARE @o1 INT,
@o2 INT,
@o3 INT,
@o4 INT
IF @ip > 4294967295 RETURN '255.255.255.255'
IF @ip
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