这条SQL语句出了什么问题 - 语法错误＃1064？

Question

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data
ORDER BY id ASC 
WHERE unixtime <= CURDATE() LIMIT 10;

或

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data
ORDER BY id ASC 
WHERE unixtime < CURDATE() LIMIT 10;

所有phpAdmin告诉我的是：

  

＃1064 - 您的SQL语法出错;检查与MySQL服务器版本对应的手册，以获得正确的语法   在第1行'WHERE unixtime＆lt; = CURDATE（）LIMIT 10'附近

Answer 1

您的ORDER BY和WHERE条款已被撤消。

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data
WHERE unixtime < CURDATE()
ORDER BY id ASC LIMIT 10;

或

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data
WHERE unixtime <= CURDATE() 
ORDER BY id ASC LIMIT 10;

我刚刚意识到您的问题的一部分，因为您在WHERE子句中引用了别名。：

WHERE UNIX_TIMESTAMP(timestamp) <= CURDATE() 

或

WHERE UNIX_TIMESTAMP(timestamp) < CURDATE() 

Answer 2

尝试以下方法：

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data 
WHERE UNIX_TIMESTAMP(timestamp) <= CURDATE() 
ORDER BY id ASC LIMIT 10;

Answer 3

试试这个

SELECT id, content, UNIX_TIMESTAMP(timestamp) AS unixtime 
FROM data
WHERE (UNIX_TIMESTAMP(timestamp)) < CURDATE() ORDER BY id ASC  LIMIT 10;

Answer 4

您需要在order by语句之前使用where语句。