There is boolean data type in SQL Server. Its values can be TRUE , FALSE or UNKNOWN . However, the boolean data type is only the result of a boolean ... ... <看更多>

A boolean is a true or false value that's used in many programming languages. However, most databases don't have a BOOLEAN data type for us ... ... <看更多>

It would be nice if the IMPORT FOREIGN SCHEMA command read in bit columns a postgresql type boolean. Currently they are imported as ... ... <看更多>

(所以別怪MS Office 不照OpenDocument format (ODF) 的標準，而要自行搞一套Office Open Xml 的標準) Oracle 不支援bit 的datatype，甚至在Oracle vs. SQL ... ... <看更多>

declare @b bit = 1 select convert (int, @b). or select cast(@b as int). ... <看更多>