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<When To Use Indexes In MySQL ⁄ >




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So you will notice that this table is pretty simplistic, and doesn't really contain all the info you would need to actually manage employees, but its just for the sake of demonstration, and you could always add more later, or even make another table and use joins if you had really complex needs.

For now we will go over these real quick.

The ID is basically just a number (INT) which can hold a very large number. If this were real world I would probably make it unsigned, since you will never have a negative employee ID - but either way, you will never reach the number of employees it would take to get to the number that would fill up an INT.



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