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In HTML5 webSQL am running SELECT query within a transaction object.
Why do i need to wrap it in a transaction?
is there any alternative way to run it without transaction?
db.transaction(function(tx) {
tx.executeSql('SELECT id FROM username', [], function(tx, rs){
...
...
});
});
The web-sql processing model requires the transaction statement. A transaction instructs the database to treat multiple operations as a unit. Changes to data requested by the queries are not committed until all actions within the transaction block have executed successfully. UPDATE/SELECT race conditions are prevented by locking the database during transactions.