When designing and creating a data model for a data-driven application, the records in tables must each be uniquely identifiable. By having a unique value associated with each record, individual ....
Details >>Whether you choose to use IDENTITY columns or GUIDs for the surrogate key is a matter of preference. Each has its own set of pros and cons. From a performance ....
Details >>Compare the two non-sequential file structure models: the random (hashed) file and the index file. What advantages does the first one have over the second and what advantages does the ....
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