Write an SQL SELECT statement for the following problem statement.Retrieve the customer name, service description, employee name, employee title, charge identifier, charge starttime, and charge end time. The result should only include billed charges (ChgBilled - True) with a start time inJanuary 2020. Include a charge even if there is no employee associated with the charge.

I have completed the query to fullfil to data to retrive according to the conditions I have used…

Answered: ng problem statement. Retrieve the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I am stuck on a question. Please assist with writing this code: Create a trigger for the EMPLOYEES table that will set the commission amount to .4 whenever the department_id is 80. Test your trigger COMPLETELY for every event it is defined. (Sometimes, UPDATE statements must have UPDATE tablename on a separate line by itself to keep APEX from hanging). This should work both for new rows and existing rows that are updated. Scenerio: All employees who are in the sales department (80) will have their commission always set to .4. This trigger is to enforce this business rule automatically.
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SQL Correct and detailed answer will be Upvoted else downvoted. Thank you!
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