i want to increase the table field size more than 255 chars as my data is more in that field. please tell me whether we can increase mysql field size more than 255 chars or not
can we increase mysql field size more than 255 cahrs
I assume your using varchar right? Change the field type to Text then you can have up to 65,535 characters 
And if that isnt enough then there should be a "blob" field aswell... though generally I think blob is used for serialised objects.
blob also has 65,535 characters(bytes). If you need more than that ...
mediumtext - 16,777,215
longtext - 4,294,967,295
mediumtext - 16,777,215
longtext - 4,294,967,295
