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Diffstat (limited to 'system/doc/efficiency_guide/tablesDatabases.xml')
| -rw-r--r-- | system/doc/efficiency_guide/tablesDatabases.xml | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/system/doc/efficiency_guide/tablesDatabases.xml b/system/doc/efficiency_guide/tablesDatabases.xml index 4b53348c4c..0c32ae2d82 100644 --- a/system/doc/efficiency_guide/tablesDatabases.xml +++ b/system/doc/efficiency_guide/tablesDatabases.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2001</year><year>2009</year> + <year>2001</year><year>2011</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -280,9 +280,9 @@ lists:filter(fun(X) -> X#person.name == "Bryan" end, TabList), <p>A simple solution would be to use the <c>name</c> field as the key instead of the <c>idno</c> field, but that would cause problems if the names were not unique. A more general solution - would be create a second table with name as key and idno as - data, i.e. to index (invert) the table with regards to the - <c>name</c> field. The second table would of course have to be + would be to create a second table with <c>name</c> as key and + <c>idno</c> as data, i.e. to index (invert) the table with regards + to the <c>name</c> field. The second table would of course have to be kept consistent with the master table. Mnesia could do this for you, but a home brew index table could be very efficient compared to the overhead involved in using Mnesia.</p> |