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What does the SQL name mean

2022-04-23 13:30:00 【CSDN Q & A】

Many of these servers have appeared recently SELECT sentence ：

SELECT * FROM Table name WHERE mac_name like 'WBZ%' AND ORD(MID((SELECT IFNULL(CAST(COUNT(pro_name) AS CHAR),0x20) FROM Library name . Table name WHERE length( pro_name ) = 16),1,1))>49 AND '%'='%' order by id desc LIMIT 0,25

I don't know what it means , I don't know where it came from , It's someone SQL Is it injected ？



Take the answer ：

Look at the code , Is there any way to prevent SQL Inject it ！

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