--- mqtt/etc/mqtt_acc.sql	2011/11/25 12:47:13	1.1.2.2
+++ mqtt/etc/mqtt_acc.sql	2012/01/27 15:05:38	1.2
@@ -1,18 +1,18 @@
 PRAGMA foreign_keys=ON;
 BEGIN TRANSACTION;
-CREATE TABLE Users (
+CREATE TABLE IF NOT EXISTS Users (
 uid integer primary key AUTOINCREMENT,
 Username varchar(64) not null,
 Password varchar(64) not null,
 Access integer not null,
 Stamp timestamp);
-CREATE UNIQUE INDEX User on Users (UserName);
-CREATE TRIGGER Users_update_t AFTER UPDATE ON Users
+CREATE UNIQUE INDEX IF NOT EXISTS User on Users (UserName);
+CREATE TRIGGER IF NOT EXISTS Users_update_t AFTER UPDATE ON Users
 BEGIN
-	UPDATE Users SET Stamp = strftime("%s", "now") WHERE Username = old.Username;
+	UPDATE Users SET Stamp = strftime('%s', 'now') WHERE Username = old.Username;
 END;
-CREATE TRIGGER Users_insert_t AFTER INSERT ON Users
+CREATE TRIGGER IF NOT EXISTS Users_insert_t AFTER INSERT ON Users
 BEGIN
-	UPDATE Users SET Stamp = strftime("%s", "now") WHERE Username = new.Username;
+	UPDATE Users SET Stamp = strftime('%s', 'now') WHERE Username = new.Username;
 END;
 COMMIT;