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4 . Consider the following customer table a ) Write a trigger to insert old values of account number and available balance along with timestamp

4. Consider the following customer table
a) Write a trigger to insert old values of account number and available balance along with timestamp into mini_statement table before updating any record in customer table
b) Write a trigger to insert new values of account number and available balance along with timestamp into micro_statement table after an update has occurred in customer table.Consider the following customer table
a) Write a trigger to insert old values of account number and available
balance along with timestamp into mini statement table before
updating any record in customer table
b) Write a trigger to insert new values of account number and available
balance along with timestamp into micro statement table after an
update has occurred in customer table.
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