Hyphens in column names in MySQL DB

mysql database hyphen
euphoria83 picture euphoria83 · May 20, 2009 · Viewed 29.9k times · Source

May be this question has been answered before but I couldn't find it.

I am using a 2/3 yr old MySQL database which has hyphens in its column names. When I try to use these names from my Java code, the names are broken at the hyphen (e.g. air_port becomes air) and thus are not found. I tried replacing hyphens to underscores in my code hoping that the DB might treat them equally but that doesn't work.

How can I escape the hyphen or how can I access these columns ? Could this be an issue of the character set being used ?

Answer

dar7yl picture dar7yl · May 20, 2009

enclose the names within `back-ticks`

Related questions

'IF' in 'SELECT' statement - choose output value based on column values

SELECT id, amount FROM report I need amount to be amount if report.type='P' and -amount if report.type='N'. How do I add this to the above query?

Read More
How do I quickly rename a MySQL database (change schema name)?

The MySQL manual at MySQL covers this. Usually I just dump the database and reimport it with a new name. This is not an option for very big databases. Apparently RENAME {DATABASE | SCHEMA} db_name TO new_db_name; does …

Read More
MySQL Error: : 'Access denied for user 'root'@'localhost'

$ ./mysqladmin -u root -p 'redacted' Enter password: mysqladmin: connect to server at 'localhost' failed error: 'Access denied for user 'root'@'localhost' (using password: YES)' How can I fix this?

Read More