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What is equi join?
Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).
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explain in detail about crash recovery
Most computer systems authenticate users by asking them for the user name and password. However, the user names and passwords often can be guessed by hackers. Suggest an automated,
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 •
Describe Hashing in DBMS? Hashing: Hashing is a technique to store data within an array so which storing, searching, inserting and deleting data is fast (in theory it's O(1))
#queDefine a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pic
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
Which model is record based logical model? Network Modelis basically known as record based logical model.
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
discuss the array implementation of a stack.
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