Difference between revisions of "SQLite-form of the CCDB database"
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Note that three /'s indicate a relative path, four /'s an absolute path. | 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, |
setenv CCDB_CONNECTION sqlite:////home/user/ccdb.sqlite | setenv CCDB_CONNECTION sqlite:////home/user/ccdb.sqlite | ||
| − | or supply the URL directly to CCDB (interactive version) | + | or supply the URL directly to CCDB (interactive version shown), |
ccdb -i -c sqlite:////home/user/ccdb.sqlite | ccdb -i -c sqlite:////home/user/ccdb.sqlite | ||
| − | To use it with JANA | + | To use it with JANA, |
setenv JANA_CALIB_URL sqlite:////home/user/ccdb.sqlite | setenv JANA_CALIB_URL sqlite:////home/user/ccdb.sqlite | ||
| − | An SQLite database is created | + | An SQLite database is created at midnight. The latest version is available for download [https://halldweb1.jlab.org/dist/ccdb.sqlite here] . Older versions of the CCDB can be found at JLab in /group/halld/Software/calib/ccdb_sqlite . |
Revision as of 15:32, 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 .
