本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。 # 逻辑运算符 AWS IoT SiteWise 支持以下逻辑运算符。 | **运算符** | **签名** | **描述** | | --- | --- | --- | | `AND` | a `AND` b | 如果两个值都为真，则为 `TRUE` | | `OR` | a `OR` b | `TRUE`如果一个值为真 | | `NOT` | `NOT` 表达式 | `TRUE`如果表达式为假，`FALSE`如果表达式为真 | | `IN` | x `IN` 表达式 | `TRUE`如果表达式中有值 | | `BETWEEN` | `BETWEEN`a `AND` b | `TRUE`如果值介于上限和下限之间，并且包括两个限制 | | `LIKE` | `LIKE` 模式 | `TRUE`如果值在模式中 `LIKE`支持通配符。有关示例，请参见下文： [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/iot-sitewise/latest/userguide/sql-supported-logical.html) | 所有逻辑运算符的示例： | **函数** | **示例** | | --- | --- | | AND | 
SELECT a.asset_name 
   FROM asset AS a, latest_value_time_series AS t 
   WHERE t.int_value > 30 AND t.event_timestamp > TIMESTAMP '2025-05-15 00:00:01'
| | 或 | 
SELECT a.asset_name 
   FROM asset AS a
   WHERE a.asset_name like 'abc' OR a.asset_name like 'pqr'
| | NOT | 
SELECT ma.asset_id AS a_id
   FROM asset AS ma
   WHERE (ma.asset_id NOT LIKE 'some%patterna%' escape 'a') AND ma.asset_id='abc'
| | IN | 
SELECT a.asset_name 
   FROM asset AS a
   WHERE a.asset_name IN ('abc', 'pqr')
| | BETWEEN | 
SELECT asset_id, int_value, event_timestamp AS i_v 
   FROM raw_time_series
   WHERE event_timestamp BETWEEN TIMESTAMP '2025-04-15 00:00:01' and TIMESTAMP '2025-05-15 00:00:01'
| | LIKE | [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/zh_cn/iot-sitewise/latest/userguide/sql-supported-logical.html) |