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List the requirements needed to design a trigger.
The requirements are:-
Specifying when a trigger is to be implemented.
State the actions to be taken when the trigger implements.
discuss the purpose of the concurrency control?
Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.
Question: (a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be
What are the three data anomalies that are similarly to take place as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why n
Explain the term- Query. Queries are used to repossess and show specific records in a table. They can also be used to show specific fields of specific records, which meet the co
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
What is an ER diagram? Why is it used in Database management system (DBMS)?
define lock conversion
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
#explain five disadvantages of a dbms..
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