Database Management Systems

Stored scripts can be associated with a single database in the catalog or they can be global stored scripts.

This node participating in the session tree references information in a database belonging to a different node.

 copy the current record from the buffer to a program variable in the user program in short means to retrieve the data, so, to retrieve the data, read command is used in DBMS software program.

The degree of parallelism (DOP) indicates how many operations can be or are being simultaneously executed by a computer. It is especially useful for describing the performance of parallel programs and multi-processor systems.

 Table is the basic unit of relational data model, that when is created, consists of rows, columns, datatype, name of the table, width information specified.

 Memory usage cost is the cost pertaining to the number of memory buffers needed during query execution.

 Denormalisation is the process, in which the higher level databases are converted to the lower level databases.

This type of characteristic for transaction recovery states that the transaction operations do not update the physical database instantly.

This term in DBMS is considered as complex in multi-database systems due to the supposition of autonomy.

This approach in OODBMS architecture is the one in which the client processes of OODBMS have an interaction with a network file service for reading and writing database pages.

These logical storage structures are created on one or more columns of a table.

The entries such as names and locations of data files and online redo log files, begin and end of undo segments etc........ are maintained in the control file.

This memory component of the PGA is in turn made up the persistent area that contains bind information and runtime memory structures.

Clusters do not affect application design.

This background process is active only when a database is in ARCHIVELOG mode.