注意，该函数使用了我们编写的BIT _ OR UDF对类似于位数据类型的参数进行运算。

Please note that this function utilizes BIT_OR UDF we wrote to operate on bit-like data type parameters.

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不等值比较运算符可用于任何有序的数据类型，比如和时间有关的类型。

You can use value comparison operators for inequality with any type of data that has an order, such as the time-oriented types.

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SQL - 92包括DECIMAL数据类型，它是用于表示定点小数的精确数字类型，它可以对小数进行基本的算术运算。

SQL-92 includes a decimal data type, which is an exact numeric type for representing fixed point decimal Numbers and performs basic arithmetic operation on decimal Numbers.

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