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What is a Phantom Deadlock?
In distributed deadlock detection, the delay in propagating local information might cause the deadlock detection algorithms to recognize deadlocks that do not really exist. Such situations are called phantom deadlocks and they lead to unnecessary aborts.
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
Objectives differentiate DDBMS and conventional DBMS; Describe Network topology for DDBMS; Describe the concepts of horizontal and vertical fragmentation; Descr
Relational Model: The relational model uses a collection of tables to represent both data and the relationships among those data. Each table has multiple columns and each column h
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Explain the Relational Completeness Codd described the term relational completeness to consider to a language that is complete with respect to first-order predicate calculus ex
List and also explain the dissimilar stages of DDLC ?
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
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