MySQL database export and import and common error resolution

MySQL database export and import process will occur many unpredictable errors, this article has sorted out some common errors and corresponding solutions, encounter similar situation friends can refer to, I hope to help you  

mysql command line export database:

1, enter the Bin folder in the MySQL directory: cd MySQL to the Bin folder directory

As I entered the command line: CD C:Program Filesmysqlmysql Server 4.1bin

(or add the directory directly to the environment variable path of Windows)

2, Export database: Mysqldump-u user name-p database name > exported text The name

is the command line I entered: mysqldump-u root-p jluibmclub > D:jluibmclub. SQL (input will allow you to enter the password to MySQL)

(if you export a single sheet in the data After the library name enter the table name)

in the command to do the database backup process in the CMD command box to enter C:/mysql/bin>mysqldump-uroot-p jluibmclub> d:jluibmclub. sql;

Error message: Mysqldump:got error:1049:unknown database ' Jluibmclub ' when selecting the database, can not identify jluibmclub this a database.

But I am in:

mysql> show databases;

Display:

+---------------+

| Database |

+---------------+

| jpa |

+---------------+

Mysql>use JPA;

Display:

Database changed

The reason is simple, just remember one point. Do not enter the MySQL environment is not the execution of SQL statements, so you do not have to add a comma (";").

If you enter the MySQL environment mysql>, the statement entered is part of the SQL statement and must be preceded by a comma (";").

3, you will see the file News.sql automatically generated to D disk under the file, if you do not specify the letter default in the bin directory.

Command-line Import Database:

1, enter mysql:mysql-u Username-P

as I entered the command line: mysql-u root-p (Input same will let you enter my SQL password)

2, create the database you want to build in Mysql-front, this is an empty database, such as a new target database named News

3, enter: Mysql>use target database name

As I entered the command line: Mysql>use news;

4, import file: Mysql>source the file name imported;

As I entered the command line: Mysql>source news.sql (If you use a relative pathname in the bin directory, if you use an absolute directory name in a different directory);

MySQL backup and restore is done using the mysqldump, MySQL, and source commands.

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