MySQL driver for Rails in Windows 7 x64

Question

I\'ve got problem with connecting to MySQL database on my freshly installed Windows 7 machine. I\'m getting this error when I try to migrate my database.

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Answer 1

For Rails or DataMapper or whatever to talk to MySQL you need a 32-bit driver in Rails\bin. The driver is called libmysql.dll. Even if you have a 64-bit server you need a 32-bit driver.

64-bit driver will fail will ruby/gems/1.8/gems/do_mysql-0.10.2-x86-mingw32/lib/do_mysql/1.8/do_mysql.so: 193: %1 is not a valid Win32 application.

A wrong 32-bit version will crash with memory allocation error or something weird like that (suggested solution to take libmysql.dll from another project may not work with newer versions of MySQL).