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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
Explain the Recoverable Schedule A recoverable schedule is one in which for each pair of transactions Ti and Tj such that Tj reads a data item formerly written by Ti, the comm
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
Every School has many teachers and many students. Each student is assigned to one school and each teacher works for one school only. Each teacher teaches more than one subject but
what is union compatable?
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
why are older data base model are being replaced by new data model
Explain Interblock gap? Interblock Gap - A track of a disk is separated into equal-sized disk blocks. Blocks are separated through fixed-size gaps, called as interblock gaps th
Data Redundancy -A lot of information is being repeated in the relation. For instance, the information that MCS-014 is named SSAD is repetitive, address of Rahul is "D- 27, Main ro
Concurrency Identification While designing analysis, model we map real world model into our analytical model. Real life objects are simultaneous in nature, but all the design
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