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

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SQL Server / T-SQL Tutorial » Data Types » bitwise operators 
5. 3. 11. The bitwise_and() Scalar Function
3>
4CREATE FUNCTION dbo.bitwise_and
5(
6>   @arg1 varbinary(8),
7>   @arg2 varbinary(8)
8RETURNS varbinary(8)
9> AS
10BEGIN
11>   DECLARE
12>     @result   AS varbinary(8000),
13>     @numbytes AS int,
14>     @curpos   AS int
15>   SET @result   = 0x
16>   SET @numbytes = DATALENGTH(@arg2)
17>   SET @curpos   = 1
18>   WHILE @curpos <= @numbytes
19>   BEGIN
20>     SELECT
21>       @result = @result + CAST(SUBSTRING(@arg1, @curpos, 1&
22>                                CAST(SUBSTRING(@arg2, @curpos, 1AS tinyint)
23>                                AS binary(1))
24>     SET @curpos = @curpos + 1
25>   END
26>   RETURN @result
27END
28> GO
1> GRANT EXECUTE ON dbo.bitwise_and TO public
2> GO
1>
2SELECT dbo.bitwise_and(0x00000001000000010000000100000001,
3>                        0xffffffffffffffffffffffffffffffff)
4>
5> drop function dbo.bitwise_and
6> GO





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0x0000000100000001





(rows affected)
1>
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
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