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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## 修改文檔 ``` // 語法 db.集合名.update({條件},{運算符: {修改}}) 是否新增:指條件匹配不到數據則插入 true插入,false不插入默認 是否修改多條:指將匹配成功的數據都修改 true是,false否默認 // 示例 db.user.update({age: 8},{$set: {age: 80}}) ``` | 運算符 | 作用 | | --- | --- | | $inc | 自增 | | $rename | 重命名列 | | $set | 修改列值 | | $unset | 刪除列 | ## 多個修改 ``` db.user.update({age: 8},{$set: {age: 80},$rename: {name: 'username'}}) ```
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