Contrast the following terms: a. Horizontal partitioning; vertical partitioningb. Repository; data dictionaryc. Physical file; tablespaced. Before image; after imagee. Normalization; denormalizationf. Range control; null controlg. Transaction log; database change logh. Secondary key; primary keyi. Rollback; roll forward
Chapter 8, Review question #3
Contrast the following terms:
a. Horizontal partitioning; vertical partitioning
b. Repository; data dictionary
c. Physical file; tablespace
d. Before image; after image
e. Normalization; denormalization
f. Range control; null control
g. Transaction log; database change log
h. Secondary key; primary key
i. Rollback; roll forward
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Answer
Contrast the following terms: a. Horizontal partitioning; vertical partitioning. Horizontal partitioning separates rows of a logical relation into separate tables. Horizontal partitioning is very simi…View the full answer
Related Book For 
Modern Database Management
13th Edition
Authors: Heikki Topi, Jeffrey A Hoffer, Ramesh Venkataraman
ISBN: 9780134773650