DBMS-Object-Relational Database
DBMS-Object-Relational Database
61. In intra-operation parallelism,
- the execution of a single query is done in parallel on multiple CPUs using shared-nothing parallel architecture technique.
- multiple transactions are executed in parallel, one by each (CPU).
- we parallelise the execution of each individual operation of a task, such as sorting, projection, join and so on.
- the different operations in a query expression are executed in parallel.
62. In inter-operation parallelism.
- the execution of a single query is done in parallel on multiple CPUs using shared-nothing parallell architecture technique.
- multiple transactions are executed in parallel, one by each (CPU).
- we parallelise the execution of each individual jopeation of a task, such a sorting, projection, join and so on.
- the diferent operations in a query expression are executed in parallel.