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System error:These contain errors in database system or the OS, example, deadlocks.Such errors are fairly hard to detect and need reprogramming the erroneous components of the system software.
What Is Recovery? During the life of a transaction, i.e., a after the start of a transaction but before the transaction commits, various changes may be made in a database state
growing phase and shrinking phase are disjoint, why ?
tell me the functionality,advantages and disadvantages of student database
MySQL Database Merge Project Description: I have two databases, I need merge the data of one database into another Work to be done online right now. Payment can be done
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
#questiontypes of keys examples..
Distributed Database Management System
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
If R1 and R2 are two relations or functions, then the result of R3 = R1 × R2 is the combination of tuples that are in R1 and R2. The product is associative and commutative. Degr
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
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