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A student entity type has the following attributes,name..
a. Define the term "deadlock". There are four conditions that must hold before deadlock is possible. Name them. b. Outline an algorithm that detects whether there is a deadlock.
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Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Some disadvantages of File Oriented System ?
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
Which database object does not physically exist? A view database object does not physically exist.
Consider the relations EMP(ENO,ENAME,AGE,BASIC_SALARY) WORK_IN(ENO,DNO) DEPT(DNO,DNAME,CITY) Express the following queries in SQL (i) Find names of employees who work in a dep
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