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What is DataWarehousing?
Subject-oriented, meaning that the data in the database is organized so that all the data elements relating to the similar real-world event or object are joined together;
Time-variant, meaning that the changes to the data in the database are tracked and recorded so that reports can be produced showing changes over time;
Non-volatile, meaning that data in the database is never over-written or deleted, once committed, the data is static, read-only, but retained for future reporting.
Integrated, meaning that the database having data from most or all of an organization's operational applications, and that this data is made consistent.
A student entity type has the following attributes,name..
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i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
What is Stored Procedure? A stored procedure is a named group of SQL statements that have been previously formed and kept in the server database. Stored procedures accept input
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
What is called remapping of bad sectors? If the controller detects that a sector is injured when the disk is initially formatted, or when an attempt is made to write the secto
1. Use the Invoice table structure shown below to answer the following questions: a) Draw the dependency diagram and identify the primary key and all dependencies, including al
Evaluate: a.When transactions T1 and T2 are in a deadlock, one of the transactions will eventually implement to completion and let the other one continue implementation. b.
how to find entities
A super key is an attribute or set of attributes used to recognize the records uniquely in a relation. For instance, in the Relation PERSON defines earlier PERSON_ID is a super
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