fix RdbPredicats to RdbPredicates

Signed-off-by: Nzhumingxian <zhumingxian@ohos.com.cn>

en/application-dev/database/database-relational-guidelines.md

@@ -89,7 +89,7 @@ The RDB provides **RdbPredicates** for you to set database operation conditions.
 | RdbPredicates | endWrap(): RdbPredicates | Adds a right parenthesis to the **RdbPredicates**.<br>- **RdbPredicates**: returns a **RdbPredicates** with a right parenthesis.|
 | RdbPredicates | or(): RdbPredicates | Adds the OR condition to the **RdbPredicates**.<br>- **RdbPredicates**: returns a **RdbPredicates** with the OR condition.|
 | RdbPredicates | and(): RdbPredicates | Adds the AND condition to the **RdbPredicates**.<br>- **RdbPredicates**: returns a **RdbPredicates** with the AND condition.|
-| RdbPredicates | contains(field: string, value: string): RdbPredicats | Sets the **RdbPredicates** to match a string containing the specified value.<br>- **field**: column name in the database table.<br>- **value**: value specified.<br>- **RdbPredicates**: returns a **RdbPredicates** object that matches the specified string.|
+| RdbPredicates | contains(field: string, value: string): RdbPredicates | Sets the **RdbPredicates** to match a string containing the specified value.<br>- **field**: column name in the database table.<br>- **value**: value specified.<br>- **RdbPredicates**: returns a **RdbPredicates** object that matches the specified string.|
 | RdbPredicates | beginsWith(field: string, value: string): RdbPredicates | Sets the **RdbPredicates** to match a string that starts with the specified value.<br>- **field**: column name in the database table.<br>- **value**: value specified.<br>- **RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
 | RdbPredicates | endsWith(field: string, value: string): RdbPredicates | Sets the **RdbPredicates** to match a string that ends with the specified value.<br>- **field**: column name in the database table.<br>- **value**: value specified.<br>- **RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|
 | RdbPredicates | isNull(field: string): RdbPredicates | Sets the **RdbPredicates** to match the field whose value is null.<br>- **field**: column name in the database table.<br>- **RdbPredicates**: returns a **RdbPredicates** object that matches the specified field.|

zh-cn/application-dev/database/database-relational-guidelines.md

@@ -91,7 +91,7 @@
 | RdbPredicates | endWrap():&nbsp;RdbPredicates | 向谓词添加右括号。<br/>-&nbsp;RdbPredicates：返回带有右括号的谓词。 |
 | RdbPredicates | or():&nbsp;RdbPredicates | 将或条件添加到谓词中。<br/>-&nbsp;RdbPredicates：返回带有或条件的谓词。 |
 | RdbPredicates | and():&nbsp;RdbPredicates | 向谓词添加和条件。<br/>-&nbsp;RdbPredicates：返回带有和条件的谓词。 |
-| RdbPredicates | contains(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicats | 配置谓词以匹配数据字段为String且value包含指定值的字段。<br/>-&nbsp;field：数据库表中的列名。<br/>-&nbsp;value：指示要与谓词匹配的值。<br/>-&nbsp;RdbPredicates：返回带有包含条件的谓词。 |
+| RdbPredicates | contains(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | 配置谓词以匹配数据字段为String且value包含指定值的字段。<br/>-&nbsp;field：数据库表中的列名。<br/>-&nbsp;value：指示要与谓词匹配的值。<br/>-&nbsp;RdbPredicates：返回带有包含条件的谓词。 |
 | RdbPredicates | beginsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | 配置谓词以匹配数据字段为String且值以指定字符串开头的字段。<br/>-&nbsp;field：数据库表中的列名。<br/>-&nbsp;value：指示要与谓词匹配的值。<br/>-&nbsp;RdbPredicates：返回与指定字段匹配的谓词。 |
 | RdbPredicates | endsWith(field:&nbsp;string,&nbsp;value:&nbsp;string):&nbsp;RdbPredicates | 配置谓词以匹配数据字段为String且值以指定字符串结尾的字段。<br/>-&nbsp;field：数据库表中的列名。<br/>-&nbsp;value：指示要与谓词匹配的值。<br/>-&nbsp;RdbPredicates：返回与指定字段匹配的谓词。 |
 | RdbPredicates | isNull(field:&nbsp;string):&nbsp;RdbPredicates | 配置谓词以匹配值为null的字段。<br/>-&nbsp;field：数据库表中的列名。<br/>-&nbsp;RdbPredicates：返回与指定字段匹配的谓词。 |