SQL
摘要:select GROUP_CONCAT(id) from a where age > 20; 把几条只有一个不同的字段记录合成一条 https://blog.csdn.net/John_D_B_Lee/article/details/120977113 select @@GLOBAL.sql_mod
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posted @ 2022-09-07 09:07
posted @ 2022-09-07 09:07
posted @ 2022-09-07 09:06