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What is difference between TRUNCATE and DELETE?
- Truncate can't be rolled back whereas Delete can be.
- Truncate keeps the lock on table whereas Delete keeps the lock on each row.
- Truncate resets the counter of the Identity column whereas Delete doesn't do so.
- Trigger is not fired in Truncate whereas it happens in Delete.
Flights(FlightNo, DeptDateTime, Origin, ArrivalDateTime, Destination, Capacity, SoldSeats) Tickets(FlightNo, Seat, CustID) Where - flightNo is the PK of the flights table - DeptDa
What is abstraction? Abstraction in the object orientation is a idea that provide opportunity to express necessary properties of object without providing much details of the im
online eductional management system ke diagram
1.Why we need data mining? Give an example to illustrate your answer. 2. Why data mining is considered as "misleading name"? 3. Distinguish the difference between database an
Project Description: I want to build a card playing Website. The user should be able to 1. Login. 2. Have profile access. 3. Put money into the site. 4. Selects t
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Wait-die" scheme : The idea is based on non-preventive method. It is based on a simple rule: If Ti requests a database resource that is held by T
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
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