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XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
how design database from begining
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
ERD Diagram of Medical Recruitment Agency?
A database is to be constructed to remain track of the teams and games of a sport league. A team has a number of players, not all of whom participate in every game. It is desired
Control Files : The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Normalize the given relation to 3NF, justifying each step
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