Week 1

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Relational database tables and spreadsheets look very similar, containing rows and columns.  What makes a relational database different is the word relation.  Unlike a spreadsheet that can have any data type with any meaning in any row/column, a relational database makes relations with the fields.  The relations made within a table and with other tables allow the data to be stored, searched, and edited without losing the relation.

Using a database instead of just saving files has many advantages.  One advantage is all the data you wish to save is gathered and saved together.  Now the person looking for certain data only has to search one place for it.  Another reason it is advantageous is redundancy.  Instead of having to back up every single file you wish to save, one backup of the database can be used and can be easily recovered in case of a hard drive failure.

 This course will be useful for anyone that wants to enter the field of computer science.  Personally, I want to pursue a career in network engineering.  Knowing to create, deploy, and maintain databases will prove helpful in this field.


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