Know that the 1 in tinyint (1) is only for the specified display length and does not represent the storage length, but it is useful to specify Zerofill for the field.
For example tinyint (3), if the actual value is 8, if the column specifies
In my past experience, if I had to decide whether to use the enum data type of mysql, I would give up ENUM () and replace it with tinyint without thinking about it, the reason is what scenarios I have used before and are suitable for use.
In my past
Boolean typeMySQL saves a Boolean value with 1 for true,0 representing False,boolean in MySQL with type tinyint (1),There are four constants in MySQL: True,false,true,false, which represent 1,0,1,0 respectively,Mysql> Select True,false,true,false;+--
Tinyint data type in mysql, mysqltinyint
The mysql database defines the data type as "data type (m:
Here, the number m represents different meanings in different data types.
The integer system has limited the value range. For example, tinyint
The data types in mysql databases are defined by "data type (m)". The numeric m represents different meanings in different data types. The integer system has limited the value range. For example, tinyint occupies one byte (8 bit) and int occupies
In mysql, the difference and length between int, bigint, smallint, and tinyint are created by creating a table, let's take a look at the differences between int bigint smallint and tinyint in mysql and the length of www.2cto.com 1. CREATE the
Problem descriptionTinyInt data type, in Java data type and MySQL data type conversion, pay attention to the case of storage length of 1. Query, the Java type of the field corresponds to a BooleanSource data:Post-read data:Problem analysisThe MySQL
The data type in mysql database is defined by the data type (m), where the meaning of the number m in different data types is different. The integer number system has a limit of 20540. for example, tinyint occupies one byte (8 bit) and int occupies
After the tinyint server determines the number, it displays the corresponding content. varchar directly stores the content to be displayed. For example, it stores the XXX category. For example, it stores the corresponding content after the tinyint
MySQL常用指令,java,php程序员,数据库工程师必备。程序员小冰常用资料整理MySQL common commands (for reference)The most common display commands are:1. Display the list of databases.show databases;2. Display the data table in the library:Use MySQL;Show tables;3, display the
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