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Define upgrade and downgrade?
It gives a mechanism for conversion from shared lock to exclusive lock is called as upgrade.
It gives a mechanism for conversion from exclusive lock to shared lock is called as downgrade.
why three level architecture had been developed/
Which model is record based logical model? Network Modelis basically known as record based logical model.
Explain current page table and shadow page table. The key idea behind the shadow paging method is to maintain two page tables during the life of the transaction: the current pa
What is the role of a database administrator?
Mention the various user privileges All privileges directly granted to the user or role. All privileges granted to roles that have been granted to the user or role.
OPENCART - Want Massive amount of products Imported through CSV We have a massive list of products that would take completely too long to do data entry. We require a slick progr
The Structured Query Language INTRODUCTION Database is an organised set of information about an entity having controlled redundancy and serves numerous applications. DBMS
external and internal mapping with examples
brief history,definition,current trends and future trends if any of data fragmentation
Australian Bureau of Statistics (ABS) provides retail data for different groups and different states as well as the aggregate numbers. Table 11 " Retail Turnover, State by Industry
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