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SQLite database separation

The SQLiteDETACH DTABASE statement is used to name the database from a separate database connection and freed before the connection is using the ATTACH statement added.If the same database file has been attached on a plurality of aliases, DETACH command will only disconnect the given name of the connection, while the rest is still valid. You can not separatemain or tempdatabase.

If the database is in memory or in a temporary database, the database will be destroyed, and the contents will be lost.

grammar

The SQLite DETACH DATABASE 'Alias-Name' basic syntax statement is as follows:

DETACH DATABASE 'Alias-Name';

Here, 'Alias-Name' when you have been using the same ATTACH statement to attach a database used by the alias.

Examples

Suppose in the previous chapters, you have created a database, and attach it to the 'test' and 'currentDB', use .database command, we can see:

sqlite> .databases
seq name file
--- --------------- ----------------------
0 main /home/sqlite/testDB.db
2 test /home/sqlite/testDB.db
3 currentDB /home/sqlite/testDB.db

Now, let's try to 'currentDB' separated from testDB.db as follows:

sqlite> DETACH DATABASE 'currentDB';

Now, if the additional checks the current database, you will find, testDB.db still with 'test' and the 'main' stay connected.

sqlite> .databases
seq name file
--- --------------- ----------------------
0 main /home/sqlite/testDB.db
2 test /home/sqlite/testDB.db