Overview of Data and Column Types
Strictly speaking, data types are slightly different from column types: the term data types refers to how MySQL interprets and handles that data; column types refers to the declaration of the column in the table. For a given column type, there will be peculiarities in the manner of inserting and returning the data; there will be certain storage requirements and limitations on the values that can be represented.
MySQL can handle the following data types:
Numeric values
String values
Date and time values
The NULL value
For each data type (numeric, string, temporal), several column types usually are available. Most of this lesson explores these column types.
Examples of declaring column types will normally be in the ...
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