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        <title>Cai-thien-hieu-suat-rails Tag - Viblo</title>
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            <title><![CDATA[Tăng hiệu suất insert hoặc update khối lượng lớn dữ liệu với gem activerecord-import trong Rails]]></title>
                        <category>Development</category>
                        <link>https://viblo.asia/p/tang-hieu-suat-insert-hoac-update-khoi-luong-lon-du-lieu-voi-gem-activerecord-import-trong-rails-924lJO2Y5PM</link>
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            <description><![CDATA[1. Vấn đề đặt ra
Giả sử bạn có file dữ liệu chứa khoảng 1000 đối tượng bản ghi cần insert vào hệ thống hoặc update lại nếu đã tồn tại bản ghi.
Nếu bạn...]]></description>
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            <pubDate>2017-09-23 11:10:06</pubDate>
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