Difference between revisions of "SQLite-form of the CCDB database"
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sqlite:////absolute/path/to/file.db | sqlite:////absolute/path/to/file.db | ||
− | Note that three / | + | Note that three "/"s indicate a relative path, four "/"s an absolute path. |
For example, sqlite database is /home/user/ccdb.sqlite then to use it with the CCDB software, | For example, sqlite database is /home/user/ccdb.sqlite then to use it with the CCDB software, |
Revision as of 15:33, 16 January 2014
The CCDB can be accessed as an SQLite file. Full history and read/write access is supported. However note that there is no current automatic mechanism for backporting changes from a modified SQLite database to the main MySQL database.
By its nature SQLite requires no network connection and no additional software is required.
Legal forms of the CCDB_CONNECTION URL are:
sqlite:///relative/path/to/file.db sqlite:////absolute/path/to/file.db
Note that three "/"s indicate a relative path, four "/"s an absolute path.
For example, sqlite database is /home/user/ccdb.sqlite then to use it with the CCDB software,
setenv CCDB_CONNECTION sqlite:////home/user/ccdb.sqlite
or supply the URL directly to CCDB (interactive version shown),
ccdb -i -c sqlite:////home/user/ccdb.sqlite
To use it with JANA,
setenv JANA_CALIB_URL sqlite:////home/user/ccdb.sqlite
An SQLite database is created at midnight. The latest version is available for download here . Older versions of the CCDB can be found at JLab in /group/halld/Software/calib/ccdb_sqlite .