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---
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layout: post
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title: "เลขประจำตัวประชาชนอัตโนมัติ"
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date: 2013-12-23
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tags: people_id
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---
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เลขอัตโนมัติสำหรับบุคคลที่ไม่มีเลข 13 หลัก ระบบจะสร้างเลขอัตโนมัติขึ้นตามนี้ เพื่อป้องกันโอกาสที่จะเกิดเลขซ้ำซ้อนขึ้น
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if this returns auto, then we make up people_id for the system.
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Pxx1387767388 (13-char ID)
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| | -- UTC UNIX Timestamp (it should be 10-digit for a while)
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| -------- first digits of sha1(school_id)
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| > this should make it more immune to duplicate
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---------- P -- showing that it's AUTO people_id
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This way -- It's not possible to have a duplicate ID..
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time machine isn't existed yet.
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