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Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
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An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Which method of access uses key transformation? A Hash method of access uses key transformation.
What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ
What is the meaning of Data Independence ?
write a database program for concurrency transaction in a bank
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
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