Bitwise operators perform bit manipulations between two expressions of any of the data types of the integer data type category.
] [ Update ] } [ WITH APPEND ] [ NOT FOR REPLICATION ] AS [ { IF Update ( column ) [ { AND | or } Update ( column ) ] [ ...n ] | IF ( COLUMNS_UpdateD ( ) { bitwise_operator } updated_bitmask ) { comparison_operator } column...
The~bitwise operator performs a bitwise logical NOT for theexpression, taking each bit in turn. Ifexpressionhas a value of 0, the bits in the result set are set to 1; otherwise, the bit in the result is cleared to a value of 0. In other words, ones are changed to zeros and zeros...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric Performs a bitwise exclusive OR operation between two integer values, and sets a value to the resu...
二﹕SQL Server为每个触发器都创建了两个专用表﹕Inserted表和Deleted表。这两个表。 一﹕ 触发器是一种特殊的存储过程﹐它不能被显式地调用﹐而是在往表中插入记录﹑更新记录或者删除记录时被自动地激活。所以触发器可以用来实现对表实施复杂的完整性约`束。
The bitwise "not" operator (~) is a little different in that it is applied to a single term — similar to the regular NOT operator: 按位的“非”运算符( ~ )有点不同,因为它应用于单个术语–类似于常规的NOT运算符: SELECT ~age::bit(8) FROM users; ...
[…n ]|IF ( COLUMNS_UPDATED ( ) { bitwise_operator } updated_bitmask ) { comparison_operator } column_bitmask [ …n ] } ] sql_statement [ …n ] } }4、关于触发器,还应该注意 (1)、DELETE 触发器不能捕获 TRUNCATE TABLE 语句。
-- &= operator DECLARE @bitwise INT = 1; SET @bitwise &= 1; SELECT @bitwise; GO -- = and & operators DECLARE @bitwise INT = 1; SET @bitwise = @bitwise & 1; SELECT @bitwise; GO 这两个示例都返回结果 1。 有关详细信息,请参阅 (按位 AND) (Transact-SQL)。 相关内容 复合运算符...
| IF(COLUMNS_UPDATED( ){bitwise_operator}updated_bitmask) {comparison_operator}column_bitmask[ ...n] }] sql_statement[...n] } } 参数 trigger_name 是触发器的名称。触发器名称必须符合标识符规则,并且在数据库中必须唯一。可以选择是否指定触发器所有者名称。
When two expressions are combined by using arithmetic, bitwise, or string operators, the operator determines the resulting data type. Complex expressions made up of many symbols and operators evaluate to a single-valued result. The data type, collation, precision, and value of the resulting express...