mysql urldecode用法有哪些技巧

?MySQL?,???????URLDecode???URL????????????????????Web?????????URL???????????????MySQL?URLDecode?????:

1. ?URL??????:

SELECT URLDecode('https://example.com/page?id=123');

2. ???????????:

SELECT CONCAT('https://', URLDecode('example.com/page?id=123'));

3. ??URLDecode????????:

SELECT * FROM table WHERE URLDecode(url) LIKE '%keyword%';

4. ????????URLDecode??:

UPDATE table SET url = URLDecode(url) WHERE id = 1;

5. ?URL????????:

SELECT SUBSTRING_INDEX(URLDecode('id=123&name=John'), '=', 1) AS key,
       SUBSTRING_INDEX(URLDecode('id=123&name=John'), '=', -1) AS value;

??????????MySQL?URLDecode?????,???????????URL???????