Answers for "unique row validation in laravel"

Laravel Validate unique column

'business_name' => 'required|unique:companies,name',

laravel unique validation

unique:table,column,except,idColumn

############## Example : ################

############### For Updating  
//rules
'email' => 'unique:users,email_address,' . $userId,

############### For Creating 
//rules
'email' => 'unique:users,email_address',