The result of a comparison operator has the Boolean data type. This has three values: TRUE, FALSE, and UNKNOWN. Expressions that return a Boolean data type are known as Boolean expressions.Unlike other SQL Server data types, a Boolean data type cannot be specified as the data type of a ...
The following table identifies the comparison operators that DMX supports. Expand table OperatorDescription < (Less Than) (DMX) For arguments that evaluate to a non-null value, returns TRUE if the value of the argument on the left is less than the value of the argument on the right; retur...
boolean-primary ::= comparison-predicate | ( search-condition ) 比較述詞 ::= 表達式 比較運算子 表達式 | expression IS \[NOT\] NULL comparison-operator ::= < \| > | <= \| >= | = | <> ORDER BY clause 排序子句 ::= 按排序規範 [,排序規範]... sort-specification ::= { ...
Node Comparison Operator Node Order Comparison Operators See Also Applies to:SQL Server XQuery provides the following types of comparison operators: General comparison operators Value comparison operators Node comparison operators Node order comparison operators ...
WHERE expression comparison_operator [ANY | ALL] (subquery) WHERE [NOT] EXISTS (subquery) 在某些 Transact-SQL 语句中,子查询可以作为独立查询来计算。 从概念上说,子查询结果会代入外部查询(尽管这不一定是 SQL Server 实际处理带有子查询的 Transact-SQL 语句的方式)。
geography1.method_name(geography2)comparison_operator**valid_number 若要返回非 NULL 结果,geography1和geography2必须具有相同的空间引用标识符 (SRID)。 否则,该方法将返回 NULL。 空间索引支持以下谓词形式: 使用空间索引的查询 仅WHERE子句中包含索引空间运算符的查询支持空间索引。 示例语法如下: ...
comparison operator Equal to (=), not equal to(<>), greater than(>), less than(<), greater than or equal to (>=), less than or equal to (<=).Contents: Equal to Operator Greater than Operator Less than Operator Greater than or equal to Operator Less than or equal to Operator Not...
0 < n < 256 for Microsoft SQL Server. 0 < n < 8000 for Microsoft SQL Server 7.0. CHAR(n) Pro*C client programs must use mode=ansi to have characters interpreted correctly for string comparison, mode=oracle otherwise. A CHAR data type with a range of 2001 to 4000 is invalid. SQL ...
The INTERSECT set operator is not supported by SQL Server; however, the EXISTS clause can be used to obtain the same result. This example uses the INTERSECT operator to find the course code and course name for all classes that have students. The EXISTS operator replaces the use of the INTE...
The SQL Server query processor considers remote statistics and determines whether a remote-join strategy is appropriate. REMOTE join hint is useful for providers that don't provide column distribution statistics. Use APPLY Both the left and right operands of the APPLY operator are table expressions....