Question

我需要计数和搜索查询才能正常工作。计数查询似乎正常工作，但搜索查询不是。

计数查询：

SELECT COUNT(DISTINCT tg_id) 
  FROM tg_keywords 
 WHERE tg_keyword LIKE 'keyword_1' OR tg_keyword LIKE 'keyword_2' 
 ORDER BY tg_keyword LIKE 'keyword_1' AND tg_keyword LIKE 'keyword_2 DESC
Returns 1 count as expected.

搜索查询：

SELECT DISTINCT tg_keywords.tg_id 
  FROM tg_keywords LEFT JOIN tg_info.tg_id=tg_keywords.tg_id 
 WHERE tg_keyword LIKE 'keyword_1' OR tg_keyword LIKE 'keyword_2' 
 ORDER BY tg_keyword LIKE 'keyword_1' AND tg_keyword LIKE 'keyword_2' DESC, tg_info.date_added LIMIT 16 OFFSET 1
Returns 0 results (1 is expected)

非常感谢任何建议

提前致谢，阿奇

Answer 1

删除查询末尾的OFFSET 1，然后尝试。

OFFSET 1告诉它给你第二行的记录。将它OFFSET 0或完全删除它。

Answer 2

SELECT DISTINCT tg_keywords.tg_id 
FROM tg_keywords 
LEFT JOIN tg_info.tg_id=tg_keywords.tg_id 
WHERE tg_keyword LIKE 'keyword_1' OR tg_keyword LIKE 'keyword_2' 
ORDER BY tg_keyword LIKE 'keyword_1' AND tg_keyword LIKE 'keyword_2' DESC, tg_info.date_added 
LIMIT 16 OFFSET 1

ORDER BY部分是什么？你的意思是：

WHERE tg_keyword LIKE 'keyword_1' OR tg_keyword LIKE 'keyword_2' 
ORDER BY tg_info.date_added DESC

Answer 3

您是否也想让用户能够使用SQL通配符？如果不是，我可能会喜欢并输入=。

sql搜索查询仍然没有产生预期的结果

3 个答案: