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how can apply joins on table
Define reference file
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
explain equi-join using illustration
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
What is conceptual model ? A conceptual model is a independent of both hardware and software.
what is cascading rollback
Define shadow paging. An alternative to log-based crash recovery method is shadow paging. This technique requires fewer disk accesses than do the log-based methods.
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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