Data Types supported by Mysql (Summary of column types) and mysql Data Types
I. Numerical type
Mysql supports all numeric types in standard SQL, including strict data types (INTEGER, SMALLINT, DECIMAL, NUMBERIC), and approximate numeric data types
A. Numeric type
MySQL supports numeric types in all standard SQL, including strict data types (integer,smallint,decimal,numberic), and approximate numeric data types (float,real,double presision). And on this basis to expand.
After the expansion,
DB2 Vs MySQL series | comparison of data types between MySQL and DB2, db2mysql
As MySQL Databases become more and more widely used, there are more and more demands for migration from DB2 to MySQL databases. During database migration, the first
Variable assignment in mysql, mysql variable assignment
Http://www.cnblogs.com/qixuejia/archive/2010/12/21/1913203.html
Variables in SQL server must be affirmed first and then assigned values:
The local variables are identified with one @ and the
In common: case-insensitive, both variables
Different points: Global variables are read-only in the system and can be modified in a configuration file
Terminology classification for MySQL variables:
1. User variable: Starting with "@" in the form
MySQL numeric data types can be roughly divided into two categories: one is an integer, and the other is a floating point or decimal. Many different subtypes are available for each of these classes. Each subtype supports data of different sizes.
Tag: color is medium tar local str local SSI GlobalDescription: Now on the market defined variables of the tutorial and books are basically stored procedures are described, but the stored procedure variables can only be used in begin...end block,
I. Numeric typeMySQL supports all numeric types in standard SQL, including strict data types (integer,smallint,decimal,numberic), and approximate numeric data types (float,real,double presision). and expand on this basis.The extension adds
I. Numeric typeMySQL supports all numeric types in standard SQL, including strict data types (integer,smallint,decimal,numberic), and approximate numeric data types (float,real,double presision). and expand on this basis.The extension adds
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