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Explain different categories of failures that occur in Oracle database?
Categories of Failures - In Oracle database subsequent types of failures can occurred: Statement Failure• Bad data type• Insufficient space Insufficient Privileges (e.g., object privileges to a role) User Process Failure• User performed an abnormal disconnect• User's session was abnormally terminated• User's program raised an address exception User Error• User drops a table• User damages data by modification Instance Failure Media Failure• User drops a table• User damages data by modification Alert Logs• Records informational and error messages• All Instance startups and shutdowns are recorded in the log
Explain the differences between structured data and unstructured data. Structured data are facts concerning objects and events. The most significant structured data are numeric
Explain the main advantages of DBMS over File Oriented System ?
What is foreign key? Foreign Key - Let there are two relations in tables R and S. Any candidate key of the relation R that is referred in the relation S is known as the forei
Which element in the database can modified by changing the data dictionary? Data elements in the database can be changed or modified through changing the data dictionary.
Hi there, Have an issue with my Database. I have: TblOrderDetails and FmOrderDetails TblCircuit and FmCircuit Whenever I add data into the Form, it will update the table as expect
Explain mechanism of nested queries? SQL gives a mechanism for nesting subqueries. A subquery is a select from where expression that is nested within one more query. A common u
Differentiate between natural join and outer join? Natural join is a binary operator which is written as (R * S) where as R and S are relations. The output of the natural join
1. Define and discuss Work Breakdown Structure, Critical Path Analysis, PERT charts and GANTT charts. Describe the role of each in determining scope, budgets, and schedules? What
What is the difference between the function module and a normal ABAP/4 subroutine? In contrast to normal subroutines function modules have uniquely exact interface. Declaring da
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
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