If you have a database for lemonpos 0.5, you can update it for the 0.6 version,
run the upgrade-database_0.5_to_0.6.sql as:

cat upgrade-database_0.5_to_0.6.sql | mysql -u root -p

If you have database for lemonpos 0.6 or 0.6.1 you can update it for the 0.7 version running:

cat upgrade-database_0.6_to_0.7.sql | mysql -u root -p

