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阿里云分布式关系型数据库 DRDS比较运算符

DRDS 支持如下比较运算符:

函数名 描述​
BETWEEN … AND … Check whether a value is within a range of values
= Equal operator
<=> NULL-safe equal to operator
> Greater than operator
>= Greater than or equal operator
IS Test a value against a boolean
IS NOT Test a value against a boolean
IS NOT NULL NOT NULL value test
IS NULL NULL value test
< Less than operator
<= Less than or equal operator
LIKE Simple pattern matching
NOT BETWEEN … AND … Check whether a value is not within a range of values
!=, <> Not equal operator
NOT LIKE Negation of simple pattern matching

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