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Server Control
It is usual to control access to the data via the front end application, for example by displaying data as ‘read only'. This part of the assignment illustrates how programmers can create reusable (and therefore shareable) code, you will be creating simple components to reuse and call from elsewhere in your code.
For the case study:
a) Identify and create a user defined function.
b) Identify a useful persistent package variable for the system.
c) Identify suitable package for the system that implements constraints. Create the package program.
d) Implement a DML type program unit (e.g. a procedure that updates data in a table) that calls the package you created in task c).
e) Implement a trigger that calls the program unit you created in task d).
Log based recovery: Let us first describe the term transaction log in the context of DBMS. A transaction log is a record in DBMS that remains track of all the transactions of a dat
Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi
Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
What are the situations while DBMS should not be used? DBMS should not be used in situations like: (i) No need of security. (ii) Not difficulty to access the data (iii) N
am looking for assignment helper for dbms
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
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What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
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There are a number of possible solutions to the open ended brief. One of the simple ones is shown here without the PKs and FKs. It is important to think of how a number of tasks
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