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Database eLearning
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Database eLearning
Database eLearning
Chapter links to the textbook are as follows:
Normalisation - BCNF
Normalisation - BCNF
Normalisation example
Boyce-Codd Normal Form (BCNF)
When a relation has more than one candidate key, anomalies may result even though the relation is in 3NF.
3NF does not deal s...
JOINs and VIEWs
JOINs and VIEWs
Multiple source tables
Sometimes you will need to write a query which uses more than a single
table. This is perfectly acceptable in SQL, but needs a little care...
It is very easy t...