select t1.froms as id from tb_message as t1 UNION select t2.tos as id from tb_message as t2
sqlite 合並2個表
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select t1.froms as id from tb_message as t1 UNION select t2.tos as id from tb_message as t2
本站轉載的文章為個人學習借鑒使用，本站對版權不負任何法律責任。如果侵犯了您的隱私權益，請聯系本站郵箱yoyou2525@163.com刪除。