It took two weeks to develop a Django based project task Management Web application using the working gap time. The real-time dynamics of the project plan can be easily viewed by Project members (^_^ again invent the wheel). From the front to the
First of all, I used the version number of MySQL is 5.5.17, recently encountered the problem is in eclipse through JDBC to the database to write Chinese data, in the database is displayed?? That garbled, in order to solve this problem, engaged in a
The last two days to do the project is always confused problem, this is not just the MySQL Chinese garbled problem solved, the following small set my solution to share to everyone for your reference, but also convenient for their own inspection.
All of the following runs through the MySQL 5.5 command line:
To view MySQL-supported character sets:
Copy Code code as follows:
Show CharSet;
View Character Set:
Copy Code code as follows:
Status
The following
I small rookie one, in order to self-learning and Exchange PHP (Jquery,linux,lamp,shell,javascript, Server) and a series of knowledge, small rookie created a group. People who wish to visit this blog can come in and exchange. Seek common development.
When you use MySQL (show tables), you sometimes need to see information about tables and fields (whether the table and a field exist, etc.) ~ ~ and PHP provides such related functions as: Mysql_list_dbs (), Mysql_list_fields (), But the
Show can describe information about the database system in various forms, such as data tables, fields, server status, and so on. There are roughly the following methods:
Show [All] COLUMNS from tbl_name [to db_name] [like ' pattern ']
Show CREATE
MySQL provides the following three ways to get metadata for database objects:
1) Show statement
2 query related tables from INFORMATION_SCHEMA database
3 command line program, such as Mysqlshow, mysqldump
Get Meta data with show statement
MySQL
Show tables or show tables from database_name;Explanation: Displays the names of all tables in the current database
show databases;Explanation: Displays the names of all the databases in MySQL
Show Processlist;Explanation: Displays all processes
Mysqldump Backup is convenient, easy to read, feature rich, I believe everyone has used this command for backup, but this command in the process of the backup did write what, the following open General_log to view: 1. Log in to the MySQL
1. The Environment for libraries and tables is as follows, and the character set is latin1:Mysql> Show CREATE Database yuanqk;+----------+---------------------------------------------------------------- ---+| Database | Create Database |+----------+-
A system databaseINFORMATION_SCHEMA: Virtual library, do not occupy disk space, storage is the database startup parameters, such as user table information, column information, permissions information, character information.Performance_schema:mysql 5.
This lesson first experiences the basic syntax of MySQL. Action folder (library) increaseCreate Database db1 charset UTF8;Check# View the currently created database Show Create database db1; # View all databases show databases;ChangeALTER DATABASE
MySQL study, this blog is about the current hot on the market of the relational database MySQL learning record.1, about the installation of MySQL, self-Baidu.2,sql:structure Query Language structured queries language.SQL classification:1,DDL (data
First, the system databaseINFORMATION_SCHEMA: Virtual library, do not occupy disk space, storage is the database startup parameters, such as user table information, column information, permission information, character information,
* Operation of the library (increase and deletion check)I. System databaseView system library commands show databases1.information_schema:Virtual library, does not occupy disk space, storage is the database startup parameters, such as user table
System Database :INFORMATION_SCHEMA: Virtual library, mainly stores the information of some database objects in the system, such as user table information, column information, permission information, character information, etc.Informance_schema:
First, the Knowledge reserveDatabase server: One computer (high memory requirements)Database management system: Like MySQL, is a softwareDatabase: Oldboy_stu, equivalent to FolderTable: Student,scholl,class_list, equivalent to a specific fileEntries:
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