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张3
发布于 2025-07-25
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这是最典型的自关联,应该是这样的:SELECT a.user_id, a.content, b.content, c.content, d.content,e.content, f.content, g.content, h.content, i.content FROM sj_reg_extend_info a,sj_reg_extend_info b,sj_reg_extend_info c,sj_reg_extend_info d,sj_reg_extend_info e,sj_...