Data base.

create database model of the er diagram after that answer the following .

(3-marks) Create database model of the following E-R diagram with Constraints on a Single Relation and Referential Integrity in SQL? customer_name customer_street account_number balance customer_id customer_city customer depositor account Customer id account number 3) (2-marks) Define a SQL-function that, given the name of a customer, returns the count of the number of accounts owned that customer? I Write a Procedure-SQL to find the total number of customers who are depositor? Write a Procedure-SQL to find the names of customers who has a balance is greater than average of all balances