Join Bill Weinman for an in-depth discussion in this video Numeric types, part of MySQL Essential Training (2014).
…MySQL Numeric Types include types for integer,…fixed point and floating point real numbers.…Integer types are used for storing numbers that don't have a fractional part.…There are five integer types in MySQL and they differ…only on the scale of the values that they represent.…This table shows the storage requirements and scale for the various integer types.…Note that int, is an alias for integer so when…you see int or integer they mean exactly the same thing.…The SQL standard is integer, but MySQL like…most database systems recognizes int as the same type.…
The decimal type is used for fixed precision values.…The type declaration for decimal takes two parameters.…The first parameter is the precision that specifies…the number of digits that will be stored.…This number includes the digits after the decimal point.…The second parameter is the scale, this…specifies the position of the decimal point.…Zero means no decimal point.…For example, this declaration has a 9 for precision and…a 2 for scale, so there are nine significant digits.…
- Writing queries
- Creating and updating databases and tables
- Using MySQL built-in functions
- Sorting and filtering data
- Updating tables with triggers
- Working with subselects and views
- Creating and using a stored function
Skill Level Beginner
1. Installing and Configuring the Test Environment
2. Basic Syntax
3. Creating a Database
4. MySQL Data Types
5. MySQL Functions
8. Subselects and Views
9. Stored Routines
10. PHP's PDO Interface with MySQL
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