i forgot my Iphone 11 display unlock passcode but i know my appleID password and mail id which i used in iphone 11,
now how can i reset or unlock the passcode without erase data
If it has been more than 72 hours since changing, the passcode is the data decryption key, so an erase will be happening here. The link posted by lkrupp shows how to perform this reset.
If this was a recent passcode change:
Try following the instructions in the link below.
If you forgot your iPhone passcode or your iPhone is disabled - Apple Support
how to reset display unlock passcode by using appe id and without date erase
