{"connection":"success","database":"alumnidata"}

Users table structure:
{"Field":"id","Type":"int","Null":"NO","Key":"PRI","Default":null,"Extra":"auto_increment"}
{"Field":"roll_no","Type":"varchar(30)","Null":"NO","Key":"UNI","Default":null,"Extra":""}
{"Field":"name","Type":"varchar(100)","Null":"NO","Key":"","Default":null,"Extra":""}
{"Field":"email","Type":"varchar(100)","Null":"NO","Key":"UNI","Default":null,"Extra":""}
{"Field":"phone","Type":"varchar(15)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"password","Type":"varchar(50)","Null":"NO","Key":"","Default":null,"Extra":""}
{"Field":"usertype","Type":"enum('student','alumni','admin')","Null":"NO","Key":"","Default":null,"Extra":""}
{"Field":"created_at","Type":"timestamp","Null":"NO","Key":"","Default":"CURRENT_TIMESTAMP","Extra":"DEFAULT_GENERATED"}
{"Field":"address","Type":"varchar(255)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"cgpa","Type":"decimal(3,2)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"profile_image","Type":"varchar(255)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"interests","Type":"text","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"department","Type":"varchar(255)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"degree","Type":"varchar(100)","Null":"YES","Key":"","Default":null,"Extra":""}
{"Field":"batch_number","Type":"varchar(20)","Null":"YES","Key":"","Default":null,"Extra":""}


Test insert FAILED: {"error":"Column 'roll_no' cannot be null","errno":1048}