Consider the bank database of Figure 5.25. Write an SQL trigger to carry out the following action: On delete of an account, for each owner of the account, check if the owner has any remaining accounts, and if she does not, deleteher from the depositor relation

branch(branch name, branch city, assets)

customer (customer name, customer street, cust omer city)

loan (loan number, branch name, amount)

borrower (customer name, loan number) a

ccount (account number, branch name, balance )

depositor (customer name, account number) Figure 5.25 Banking database