Hello I'm trying to take backup from mysql command line client. I'm using mysqldump to take backup with username and password. Following is the command I'm using for backing up the database.
mysql> mysqldump -u username -p password databasename > backup.sql;
I'm getting following error
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'mysql
dump -u username -p password fms > backup.sql' at line 1
Though the command seems to be correct, still i'm getting error. Please let me know is there any other way taking backup from mysql command line.
Thanks in advance.
mysqldump is not a MySQL command, it is a command line utility. You must call it from your shell command line.
The problem is you are executing the command from a MySQL prompt instead of a Linux shell. Exit the mysql command line and run the command from a OS shell (remove the semicolon at the end)
In your command, you can't have a space between -p and the password. Also, mysqldump has to be run on the command line, not in a mysql shell.
Try this on your command line
mysqldump -u username -ppassword databasename > backup.sql
I didn't understood what the others was trying to say until i saw this question.
The thing is, you can't access the "mysql.exe" and put the mysqldump in it. The "mysqldump.exe" is another file, so you have to execute it from the command line of the OS passing parameters to the execution.
So, in the DOS (on Windows, of course), supose that you're in the directory: "C:\xampp\mysql\bin", then you can call the following command:
mysqldump -u root -p test > test.sql
You could also call it like this, so you can explicitly see that you're executing a file:
.\mysqldump.exe -u root -p test > test.sql
If it can be more crystal clean, you would see that line in the DOS:
c:\xampp\mysql\bin>.\mysqldump.exe -u root -p test > test.sql
Ps: in that code you would be asked to inform the password after executing. That is, indeed, the recomendation that the "mysqldump.exe" gives you if you put the password directly in the dump line.
Ps 2: if you're using the default settings of the root user (i.e. with empty password), you need to just press "Enter" when asked to inform the password.
Ps 3: the "test.sql" will be created in the same directory of the "mysqldump.exe". In this example, in: "C:\xampp\mysql\bin".
Type this in your command line interface NOT in MYSQL command line:
mysqldump -u username -ppassword databasename > backup.sql
For example, if username is 'root', password is 'abcdefg', and the database name is 'mydatabase', then the syntax is:
mysqldump -u root -pabcdefg mydatabase > backup.sql
backup.sql is the name of the file in which your backup will be stored so you can have any name.
来源：https://stackoverflow.com/questions/8575356/error-while-taking-backup-with-mysqldump-in-mysql-command-line