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Managing Tables

Voorbeeld tekst 40 woorden

1 Creating Tables

Structured Query Language (SQL) supports the creation and maintenance of the relational
database and the management of data within that database. However, before I go into a
discussion about relational databases, I want to explain what I mean by the term database.

2 Editing Tables

Central to the principles of the relational model is the concept of normalization, atechnique for producing a set of relations that possesses a certain set of properties thatminimizes redundant data and preserves the integrity of the stored data as data is
maintained (added, updated, and deleted). The process was developed by E. F. Codd in1972, and the name is a bit of a political gag because President Nixon was “normalizing”

3 Deleting Tables

Voorbeeld tekst

  • Bulletpoint 1
  • Bulletpoint 2
  • Bulletpoint 3




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