mysql set database collation

. SQL 2. Open data. SQL and change set names latin1 to set names utf8. : % S/latin1/utf8/g Full text replacement 3. Use a new character set to create a new database Create database mydata default charset utf8; 4. Create a table and run createtab. SQL.

command again and change it to gbk. Note: As shown above, character-set-client = gbk is used by default and no changes have been made. If there are other codes, it is also a unified code to access the client. Open the data folder in the mysql installation directory and find the database you created. For example, test. Open the test file and find db. opt. open t

MySQL Character Set Support has two aspects: Character set and Collation ). The support for character sets is refined to four layers: Server, database, table, and connection ). 1. default character set of

can specify different character sets for different fields on the same server, the same database, or even the same table. MySQL has significantly more flexibility than other database management systems such as Oracle, where only the same character set can be used in the same database.The

below: (4) elevate. xml The elevate. xml file is also opened in the same directory of solrconfig. xml. The settings are as follows: The reason for this setting is that the id in our table is of the int type, in schema. the IDS set in xml are also int type, but the solr index requires string type. If you do not comment out the preceding two (5) import the jar package The configuration file for full import is the above three, but the import data f

/mysql # chown-R root. /Usr/local/mysql # chown-R mysql data /Usr/local/mysql # chgrp-R mysql ◆ 8. create and modify/etc/my. cnf as needed. refer to the configuration: [Mysqld] # Set the default value to the INNODB table and suppo

integrity. For example, if a user is operating on a table and other users want to operate on this table, they must wait for the first user to complete the operation before other users can perform the operation, table locks and row locks serve this purpose. Otherwise, when multiple users operate on a table at the same time, data may conflict or be abnormal. Based on the above, using the InnoDB Storage engine is the best choice, and is also the default storage engine in

Solution to the Problem of Character Set mismatch in mysql query, mysql Character Set Problems Found Recently, I encountered a problem in my work. When creating a table in MySQL database, I used the latin character

Go deep into Mysql Character Set settings and mysql Character Set There is a character set converter between the mysql client and the mysql server. Character_set_client => gbk: the conv

data entry into the table: insert into temp values ('u.s '); The final query result is as follows: The data is lost. It can be concluded that when the character set of the connection and server is less than the client hour, data will be lost. The term may not be very accurate, but it can be understood. In my personal understanding, it is the same as when different data types in java are converted to each other. For example, if the double type is f

; View Current database version mysql> select version(); View database Status mysql> show status; View each parameter mysql> show variables like ‘slow%‘; ##查看slow modifying parameters If you want to res