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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.
Eliminate Repeating Groups The problem is, "Find out the list of employees, who knows DB2". For this problem we require to perform an awkward scan of the list looking for re
Define lock? Lock is the most common used to execute the requirement is to permit a transaction to access a data item only if it is currently holding a lock on that item.
What is Relational calculus? Relational calculus is a Non- Procedural language.
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
I want to fragment existing table using java code... help me..!!
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
What should be declared explicitly in the corresponding ABAP/4 Statements to access internal tables without header lines & why? Work Area. This is needed as the Work Area is
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