mysql - 大于值 1 的 SQL 查询将不起作用？

Question

我正在尝试拔出:

question_id, question_body, answer_value

如果 answer_value 大于 1，但它不起作用？

SELECT answers.question_id, question_body, answer_value FROM answers 
LEFT JOIN questions on answers.question_id = questions.question_id 
where question_sort=1 AND form_id=1479043482602207 WHEN answer_value=>1

Answer 1

尝试以下操作:

SELECT answers.question_id, question_body, answer_value FROM answers 
LEFT JOIN questions ON answers.question_id = questions.question_id 
WHERE question_sort=1 
AND form_id=1479043482602207 
AND answer_value >= 1

“大于或等于”的正确语法是“>=”。

您还应该只使用另一个“AND”而不是“WHEN”。