Mysql -- The used SELECT statements have a different number of columns
這是由於使用union的兩個SQL語句產生的記錄的表結構不一致. 必須是結構徹底一致的記錄集合才能夠使用UNION. 以上就是兩個表的字段不同，致使，因此你們能夠檢查下.html 能夠 將 select * 改成 select 相同的字段 解決.post 轉載於:https://www.cnblogs.com/mafeng/p/11239784.htmlhtm
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相關文章
- 1. MySQL：The used SELECT statements have a different number of columns
- 2. mysql The used SELECT statements have a different number of columns
- 3. mysql ERROR 1222 (21000): The used SELECT statements have a different number of columns
- 4. MySQL報錯 - 1222 - The used SELECT statements have a different number of columns
- 5. The used select statements have a different number of columns解決辦法
- 6. [Err] 1222 - The used SELECT statements have a different number of columns
- 7. UNION關鍵字報錯：ERROR 1222 (21000): The used SELECT statements have a different number of columns
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