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Create 3 Simple SQL Triggers
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IT & Programming > Database Development

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Jul 29, 2012
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  • Posted: Sun, Jul 29, 2012
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: $50 or less
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There's a SQL database for a pretend movie rental company.

It has these 2 tables:

1. "movies" - this table has a column titled "num_rentals"
2. "customer_rentals" - this table has a column titled "item_rental_id"

The company wants to keep track of how many times a movie has been rented in the "num_rentals" column that resides in the "movie" table.

Must create an INSERT, UPDATE and DELETE trigger that will automatically add, subtract, or both add/subtract values in the "num_rentals" column every time a new entry is made into the "item_rental_id", which represents that a movie has been rented, and so it must be accounted for in the "num_rentals" column. If a "item_rental_id" is deleted, then the value in the "num_rentals" column must be subtracted.

I have the actual database that you can login to and see. It's a fairly simple task but I am really new at this and can't figure it out.

MUST BE DONE TODAY....

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Job ID: 32334300
 
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 India  |  
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Hi! If you are seeking a dependable virtual assistant who gives organized, timely and accurate results, then I request your attention! I am a...
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Bid ID: 32334625  |  Submitted: Jul 29, 2012 20:13 ET 
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