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【區塊鏈技術】康業金融認證員工卡片 防假冒職員騙款

康業金融科技就在其公司的員工證上加入QR code(二維碼),背後使用的就是區塊鏈技術,方便客戶認證公司員工身分。當卡片的QR code被掃描時,掃描者會顯示職員的名字,職銜、更會顯示掃描者的裝置的地點,甚至有該卡片被掃的次數。如果某職員卡片被掃描多次,更會彈出警告,提示該卡片或有機會已被盜用,防止不法分子以該卡片行騙。

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SQL: [142]  SELECT * FROM media WHERE media_status = ? and media_type = ? and media_highlight = ? and media_show = ? ORDER BY media_date desc limit -8, 8
Sent SQL: [150]  SELECT * FROM media WHERE media_status = '1' and media_type = '3' and media_highlight = '0' and media_show = '1' ORDER BY media_date desc limit -8, 8
Params:  4
Key: Position #0:
paramno=0
name=[0] ""
is_param=1
param_type=2
Key: Position #1:
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name=[0] ""
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Key: Position #2:
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name=[0] ""
is_param=1
param_type=2
Key: Position #3:
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name=[0] ""
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SQLSTATE error code: 42000
Driver-specific error code: 1064
Driver-specific error message: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-8, 8' at line 1