sql server中的无符号右移'>>>'运算符[关闭]

如何在sql server中编写无符号右移运算符？表达式就像value >>> 0

这是例如-5381>>>0 = 4294961915

T-SQL 没有位移运算符，因此您必须自己实现一个。这里有一个按位移位的实现：http://dataeducation.com/bitmask-handling-part-4-left-shift-and-right-shift/ http://dataeducation.com/bitmask-handling-part-4-left-shift-and-right-shift/

您必须将整数转换为 varbinary，使用按位移位函数并转换回整数，然后（希望如此）嘿，急！这就是你所期待的结果。

实现和测试留给读者作为练习......

编辑 - 为了尝试澄清我在下面的注释中添加的内容，执行此 SQL 将演示各种 CAST 给出的不同结果：

SELECT -5381 AS Signed_Integer,
        cast(-5381 AS varbinary) AS Binary_Representation_of_Signed_Integer,
        cast(cast(-5381 AS bigint) AS varbinary) AS Binary_Representation_of_Signed_Big_Integer, 
        cast(cast(-5381 AS varbinary) AS bigint) AS Signed_Integer_Transposed_onto_Big_Integer, 
        cast(cast(cast(-5381 AS varbinary) AS bigint) AS varbinary) AS Binary_Representation_of_Signed_Integer_Trasposed_onto_Big_Integer

Results:

Signed_Integer Binary_Representation_of_Signed_Integer                        Binary_Representation_of_Signed_Big_Integer                    Signed_Integer_Transposed_onto_Big_Integer Binary_Representation_of_Signed_Integer_Trasposed_onto_Big_Integer
-------------- -------------------------------------------------------------- -------------------------------------------------------------- ------------------------------------------ ------------------------------------------------------------------
-5381          0xFFFFEAFB                                                     0xFFFFFFFFFFFFEAFB                                             4294961915                                 0x00000000FFFFEAFB