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Hot Backup:Some sites cannot terminate the database while creating a backup copy of the files. The cold backup is not a reliable option. So different kinds of backing up database must be used - the hot backup. Gives a SQL command to refer to Oracle, on a tablespace-by-tablespace basis, that the folders of the tablespace are to back up. The users can continue to create full use of the files, including creating modifications to the data. Once the user has refers that he/she wants to back up the files, he/she can need the operating system to copy those files to the right backup destination. The database has to be operating in ARCHIVELOG mode for the hot backup option.
various techniques of hashing?
Determine the advantage of object-orientation Finally, object-orientation has advantage of continuity throughout analysis, persistent representation and design implementation.
What are composite attributes? Composite attributes can be separated in to sub parts.
explain the mapping constraints
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Differance between procedural and non procedural DML? Procedural and non procedural DML Procedural DML exactly what data is require and how to obtain those data. Non procedural
Can we delete data element, which is being used by table fields. No we cant delete data element.
What is the full form of DDL? DDL is stand for Data Definition Language.
random file sharing
entity relationship diagram for online examination system
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