mysql set database collation

fields for all of the fields that are not repeating records for DISTINCT.such as: SELECT name,sum (Price) as Sumprice from Tb_price GROUP by nameSELECT * from Tb_name ORDER by Mount Desc,price ASC21 single row data grouping statisticsSELECT id,name,sum (price) as title,date from Tb_price GROUP by PID ORDER by title DESCNote: When the grouping statement group by sort statement order by is present in the SQL statement, the grouping statement is written before the sort statement, otherwise an erro

I wrote an article about this before.Why does "original" use data indexing to improve efficiency? (This article provides an overview of MySQL) (update)This time, the main focus is on two common storage engines.We generally perform MySQL database optimization from two aspects:A, optimization of SQL statements.In this case, we need to pay special attention when we

Label:bspfornbsp settings fixed ip appears Operation Rights access rights root user let 　　About MySQL user management, notes 1, creating a new user after logging in by root user creates >>grant all privileges on *. * to[emailprotected] Identified by "123456" ;//create a new user, the user name is TestUser, the password is 123456; >>grant all privileges on *. * to nbsp [emailprotected] Identified by "123456" ;//

Take you 5 minutes to understand MySQL Character Set settings, mysql Character SetI. Content Overview When using MySQL, it is important to understand the concepts of character sets and collation, and the impact of different settings on data storage and comparison. Many peopl

Label:MySQL garbled the root of the problem is incorrect MySQL character set, this article summarizes the command to view the MySQL character set. This includes viewing the MySQL database server character

'character _ set _ % ';+ --------- + ---------- +| Variable_name | Value |+ --------- + ---------- +| Character_set_client | utf8 || Character_set_connection | utf8 || Character_set_database | utf8 || Character_set_filesystem | binary || Character_set_results | utf8 || Character_set_server | utf8 || Character_set_system | utf8 || Character_sets_dir |/usr/share/mysql/charsets/|+ --------- + ---------- +8 ro

default database. When the default database changes, the server sets this variable. If no default database exists, the variable value is the same as collation_server.Collation_server: Default Server verification rulesIn the above content, character_set_client, character_set_connection, and character_set_results are affected by the default Character

database language"2. Procedures for working with MySQLDatabase System "MySQL itself is a database system. The system is a complete set of tools for manipulating data. "Data System = The subject part of the database "+ Data management System" the operational data of the tool

database mydb character set UTF-8; create a character set of the specified database mysql> create database mydb character set UTF-8; modify the configuration file:/var/lib/

In a MySQL database, when the inserted data cannot support Chinese characters, you can set the sequence set of the database to utf8. Therefore, when creating a database, set the sequenc

synchronized Copy Code code as follows: Serv01 mysqlgt; CREATE DATABASE Justdb; Query OK, 1 row affected (0.01 sec) mysqlgt; show databases; +--------------------+ | Database | +--------------------+ | Information_schema | | CRM | | Justdb | | Larry | | Larrydb | | MySQL | | Performance_schema | | Test | +--------------------+ 8 ro

Ssh remote connection to the MySQL database character set in linux and prevent garbled characters, sshmysqlLab environment: Local windows 8.1 Remote Connection Tool SecureCRT 7.3 CentOS 6.7 x86_64-bit Linux, kernel version 2.6.32-573 Mysql version mysql-5.5.321.1

Mysql modifies database encoding (database character set) and table character encoding method bitsCN.com Mysql converts the character encoding of a table to UTF-8.Alter table tb_anniversary convert to character set utf8; Modify

1.2 MySQL database character set knowledge1.2.1 MySQL database Character Set introductionSimply put, a set of text symbols and their encoding and comparison rules.The

| UTF8 || Character_set_filesystem | binary || Character_set_results | UTF8 || Character_set_server | UTF8 || Character_set_system | UTF8 || Character_sets_dir | /usr/share/mysql/charsets/|+--------------------------+----------------------------+8 rows in Set (0.00 sec) View the proofing character set The code is as follows Copy Code

MySQL Chinese garbled solution: the MySQL database encoding unified UTF8To view the database encoding:Show variables like ' character% ';Edit/ETC/MY.CNF[mysql]default-character-set=utf8[mysqld]datadir=/var/lib/mysqlsocket=/var/lib

When JDBC connects to the MySQL database, set the character set encoding!!!You can configure MySQL to include character set settings directly after the URL:String url = "jdbc:mysql://localhost:3306/exceltest1?useunicode=truecharac