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Write a pl-sql block

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Reference no: EM13127281

Write a PL/SQ block to do the following:

Select the average salary of all employees in department number 20.

If the average salary is less than 5000, then increase the salary of all employees in that Department by 10% (using an UPDATE command). If the average salary is greater than 5000, then display the message ‘No action needs to be taken'.

Reference no: EM13127281

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