mysql學(xué)習(xí)之幫助文檔詳細(xì)說明
發(fā)表時(shí)間：2023-09-04 來源：明輝站整理相關(guān)軟件相關(guān)文章人氣：
[摘要]本文給大家詳細(xì)講述的是mysql的help（幫助）命令的用法，非常細(xì)致，有需要的小伙伴可以來參考下查看系統(tǒng)幫助help contentsmysql> help contents;You asked for help about help category: "Contents&qu...
本文給大家詳細(xì)講述的是
mysql的help（幫助）命令的用法，非常細(xì)致，有需要的小伙伴可以來參考下
查看系統(tǒng)幫助
help contents
mysql> help contents;
You asked for help about help category: "Contents"
For more information, type 'help <item>', where <item> is one of the following
categories:
Account Management
Administration
Compound Statements
Data Definition
Data Manipulation
Data Types
Functions
Functions and Modifiers for Use with GROUP BY
Geographic Features
Help Metadata
Language Structure
Plugins
Procedures
Storage Engines
Table Maintenance
Transactions
User-Defined Functions
Utility
幫助文檔的目錄列表
查看數(shù)據(jù)類型
help data types
mysql> help data types;
You asked for help about help category: "Data Types"
For more information, type 'help <item>', where <item> is one of the following
topics:
AUTO_INCREMENT
BIGINT
BINARY
BIT
BLOB
BLOB DATA TYPE
BOOLEAN
CHAR
CHAR BYTE
DATE
DATETIME
DEC
DECIMAL
DOUBLE
DOUBLE PRECISION
ENUM
FLOAT
INT
INTEGER
LONGBLOB
LONGTEXT
MEDIUMBLOB
MEDIUMINT
MEDIUMTEXT
SET DATA TYPE
SMALLINT
TEXT
TIME
TIMESTAMP
TINYBLOB
TINYINT
TINYTEXT
VARBINARY
VARCHAR
YEAR DATA TYPE
查看整數(shù)
mysql> help int;
Name: 'INT'
Description:
INT[(M)] [UNSIGNED] [ZEROFILL]
A normal-size integer. The signed range is -2147483648 to 2147483647.
The unsigned range is 0 to 4294967295.
URL: http://dev.mysql.com/doc/refman/5.7/en/numeric-type-overview.html
mysql> help tinyint;
Name: 'TINYINT'
Description:
TINYINT[(M)] [UNSIGNED] [ZEROFILL]
A very small integer. The signed range is -128 to 127. The unsigned
range is 0 to 255.
URL: http://dev.mysql.com/doc/refman/5.7/en/numeric-type-overview.html
以上就是mysql學(xué)習(xí)之幫助文檔詳解的詳細(xì)內(nèi)容，更多請關(guān)注php中文網(wǎng)其它相關(guān)文章！
學(xué)習(xí)教程快速掌握從入門到精通的SQL知識。
