The bitwise_not() Scalar Function : bitwise operators « Data Types « SQL Server / T-SQL Tutorial

Home
SQL Server / T-SQL Tutorial
1.Query
2.Insert Delete Update
3.Table
4.Table Join
5.Data Types
6.Set Operations
7.Constraints
8.Subquery
9.Aggregate Functions
10.Date Functions
11.Math Functions
12.String Functions
13.Data Convert Functions
14.Analytical Functions
15.Sequence Indentity
16.View
17.Index
18.Cursor
19.Database
20.Transact SQL
21.Procedure Function
22.Trigger
23.Transaction
24.XML
25.System Functions
26.System Settings
27.System Tables Views
28.User Role
29.CLR
SQL Server / T-SQL Tutorial » Data Types » bitwise operators 
5.3.10.The bitwise_not() Scalar Function
5>
6CREATE FUNCTION dbo.bitwise_not
7(
8>   @arg1 varbinary(8)
9RETURNS varbinary(8)
10> AS
11BEGIN
12>   DECLARE
13>     @result   AS varbinary(8000),
14>     @numbytes AS int,
15>     @curpos   AS int
16>   SET @result = 0x
17>   SET @numbytes = DATALENGTH(@arg1)
18>   SET @curpos = 1
19>   WHILE @curpos <= @numbytes
20>   BEGIN
21>     SELECT
22>       @result = @result +
23>                 CAST(~ CAST(SUBSTRING(@arg1, @curpos, 1)
24>                 AS tinyint)AS binary(1))
25>     SET @curpos = @curpos + 1
26>   END
27>   RETURN @result
28END
29> GO
1> GRANT EXECUTE ON dbo.bitwise_not TO public
2> GO
1SELECT dbo.bitwise_not(0x00000001000000010000000100000001)
2>
3> drop function dbo.bitwise_not
4> GO





------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
----------------------------------
0xFFFFFFFEFFFFFFFE





(rows affected)
5.3.bitwise operators
5.3.1.Selecting data using bitwise operators.
5.3.2.Testing numeric values with bitwise operators.
5.3.3.Bitwise NOT (~) Validity Table
5.3.4.Legal Bitwise Operation
5.3.5.Retrieving Index Properties by Using the Bitwise AND (&) Operator
5.3.6.Bitwise AND (&)
5.3.7.Bitwise OR (|)
5.3.8.Exclusive Or (^)
5.3.9.Bitwise NOT (~)
5.3.10.The bitwise_not() Scalar Function
5.3.11.The bitwise_and() Scalar Function
5.3.12.The bitwise_or() Scalar Function
5.3.13.The bitwise_xor() Scalar Function
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.