Problems 8.44-8.46Create a trigger named trg_char_hours that automaticallyupdates the AIRCRAFT table when a new CHARTER row isadded. Use the CHARTER table's CHAR_HOURS FLOWN toupdate the AIRCRAFT table's AC_TTAF , AC_TTEL , andAC_TTER values.(Hint: use temp values, as the INSERT event does not acceptthe OLD keyword.)TaskComplete Problem 44 above.Problem 45Create a trigger named trg_pic_hours that automaticallyupdates the PILOT table when a new CREW row is addedand the CREW table uses a Pilot CREW_JOB entry. Use theCHARTER table's CHAR_HOURS FLOWN to update the PILOTtable's PIL_PIC_HRS only when the CREW table uses a PilotCREW_JOB entry.Task3/4>

Actually, Triggers are SQL procedure that automatically perform the action when specific command…

Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new CHARTER row is added. Use the CHARTER table's CHAR_HOURS_FLOWN to update the AIRCRAFT table's AC_TTAF, AC_TTEL , and AC_TTER values. (Hint: use temp values, as the INSERT event does not accept the OLD keyword.)

Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new CHARTER row is added. Use the CHARTER table's CHAR_HOURS_FLOWN to update the AIRCRAFT table's AC_TTAF, AC_TTEL , and AC_TTER values. (Hint: use temp values, as the INSERT event does not accept the OLD keyword.)

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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