我有一个类似于 {"gclid":"Cj0KEQjw7dfKBRCdkKrvmfKtyeoBEiQAch0egQ97fbdyRpkv6sUmkYHXnTKlOWMywt3SceAol-1umzwaAmsk8P8HAQ","sem_keyword":"+turbolader +einbau","sem_creativeid":"16 的网址5357442696","sem_matchtype":"b","sem_network":"g","sem_device":"m","sem_placement":"","sem_target":"","sem_adposition":"1t2","sem_param1":"","sem_param2":"","sem_campaignid":"629608072","sem_adgroupid":"38134265464","sem_targetid":"kwd-26982332150","sem_location":"1004645"}
从我需要提取Cj0KEQjw7dfKBRCdkKrvmfKtyeoBEiQAch0egQ97fbdyRpkv6sUmkYHXnTKlOWMywt3SceAol-1umzwaAmsk8P8HAQ的位置，即gclid之后两个双引号之间的数据。
我已经尝试了所有子字符串函数，但我无法接近。
最佳答案
您可以使用 MySQL JSON 函数:
select json_unquote(json_extract(url, '$.gclid'))
关于MySQL 子字符串函数提取 URL 中的字符串，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45759079/