diff --git a/documentation20/cn/12.taos-sql/docs.md b/documentation20/cn/12.taos-sql/docs.md
index ff6adad045ccb56675d8b20c9e956f87f278f9e2..aba8faa6771ad09a90b30b5bf3bb08664e8b6ca1 100644
--- a/documentation20/cn/12.taos-sql/docs.md
+++ b/documentation20/cn/12.taos-sql/docs.md
@@ -627,19 +627,21 @@ Query OK, 1 row(s) in set (0.001091s)
 
 ### 支持的条件过滤操作
 
-| Operation | Note                          | Applicable Data Types                 |
-| --------- | ----------------------------- | ------------------------------------- |
-| >         | larger than                   | **`timestamp`** and all numeric types |
-| <         | smaller than                  | **`timestamp`** and all numeric types |
-| >=        | larger than or equal to       | **`timestamp`** and all numeric types |
-| <=        | smaller than or equal to      | **`timestamp`** and all numeric types |
-| =         | equal to                      | all types                             |
-| <>        | not equal to                  | all types                             |
-| %         | match with any char sequences | **`binary`** **`nchar`**              |
-| _         | match with a single char      | **`binary`** **`nchar`**              |
+| Operation   | Note                          | Applicable Data Types                 |
+| ----------- | ----------------------------- | ------------------------------------- |
+| >           | larger than                   | **`timestamp`** and all numeric types |
+| <           | smaller than                  | **`timestamp`** and all numeric types |
+| >=          | larger than or equal to       | **`timestamp`** and all numeric types |
+| <=          | smaller than or equal to      | **`timestamp`** and all numeric types |
+| =           | equal to                      | all types                             |
+| <>          | not equal to                  | all types                             |
+| between and | within a certain range        | **`timestamp`** and all numeric types |
+| %           | match with any char sequences | **`binary`** **`nchar`**              |
+| _           | match with a single char      | **`binary`** **`nchar`**              |
 
 1. 同时进行多个字段的范围过滤，需要使用关键词 AND 来连接不同的查询条件，暂不支持 OR 连接的不同列之间的查询过滤条件。
-2. 针对单一字段的过滤，如果是时间过滤条件，则一条语句中只支持设定一个；但针对其他的（普通）列或标签列，则可以使用``` OR``` 关键字进行组合条件的查询过滤。例如：((value > 20 and value < 30) OR (value < 12)) 。
+2. 针对单一字段的过滤，如果是时间过滤条件，则一条语句中只支持设定一个；但针对其他的（普通）列或标签列，则可以使用 `OR` 关键字进行组合条件的查询过滤。例如：((value > 20 AND value < 30) OR (value < 12)) 。
+3. 从 2.0.17 版本开始，条件过滤开始支持 BETWEEN AND 语法，例如 `WHERE col2 BETWEEN 1.5 AND 3.25` 表示查询条件为“1.5 ≤ col2 ≤ 3.25”。
 
 ### SQL 示例