After mysql gets the query results, the query again involves two tables

Note that the use of
any will report an error, or the use of any will report an error

SELECT *
FROM hf WHERE tieziid = any(select id from nr where openid = "o1YUg5bAJhLCT8I2jIqNddjL-R_o" ) and chakan="0"

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Origin blog.csdn.net/weixin_40938312/article/details/105073227