mysql - 语法错误 : WITH is not valid input in this position

Question

所以我有这个类似的请求

    WITH customers_in_usa AS (
        SELECT 
           customerName, state
        FROM
           customers
        WHERE
           country = 'USA'
    ) SELECT 
        customerName
    FROM
        customers_in_usa
    WHERE
        state = 'CA'
    ORDER BY customerName;

但是当我写它的时候我发现了一个错误:'WITH is not valid input in this position' error_picture .你能帮我理解这段代码有什么问题吗？

Answer 1

WITH customers_in_usa AS 目前是无效的 MySQL 代码。MySQL 将在 MySQL 版本 8 中支持 CTE。

您可以重写您的 SQL 代码，这应该会产生相同的结果。

SELECT 
    customerName
  , state
FROM 
   customers 
WHERE
   country = 'USA'
 AND
   state = 'CA'
ORDER BY
   customerName