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3 assignments combined in 1
What is system log? What are the entries? Ans: The system log that is generally written on stable storage contains the redundant data required to recover from volatile
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Column Constraints: NOT NULL, UNIQUE, CHECK, PRIMARY KEY, DEFAULT, REFERENCES, On delete Cascade : Using this key whenever a parent row is removed in a referenced
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Describe the types of Inheritance 1. Single inheritance 2. Multiple inheritance 3. Hierarchical inheritance 4. Multilevel inheritance
Have a look around the site, and at some of the sites they have featured. These are all examples of bad design, and also offer an explanation about why they fall into this category
how to implement hyrise in C plus plus
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