![]() If your transaction does modify the db, then use "BEGIN IMMEDIATE TRANSACTION" in a sleep/retry loop to wait and try again if you get SQLITE_BUSY.With WAL mode, this statement should never return a busy error, and all the SELECT statements inside the transaction should be fine as well. If your transaction does not modify the db, just use "BEGIN TRANSACTION".Always wrap everything in an explicit transaction.PRAGMA journal_mode = WAL What SQLite strategies should I use for concurrency? See Write-Ahead Logging for more information. We recommend using WAL mode in most situations. ![]() Execute this statement each time you open the SQLite database: PRAGMA recursive_triggers = ON Which SQLite journal mode should I use? Use of OR REPLACE with a Zumero table requires that SQLite recursive triggers be turned on. Execute this statement each time you open the SQLite database: PRAGMA foreign_keys = ON Why doesn't INSERT OR REPLACE work? Using SQLite with foreign keys turned ON is highly recommended. Zumero's housekeeping tables use foreign keys to ensure data integrity. Should I turn on SQLite foreign keys when using Zumero? Whenever possible, use the latest version of SQLite with Zumero. SQLite website usually recommends using the latest version of SQLite Zumero Client API Is Zumero compatible with my version of SQLite? If this is the case the load balancer might drop connections if the server takes too long to generate a sync response. Some load balancers have the TCP inactivity timeouts set too low for ZSS. Yes, but some configuration changes on the load balancer might need to be made to prevent problems with syncing. SQLite data on client devices can be encrypted using SQLCipher. Communications between the ZSS Server and clients can be encrypted by enabling SSL/TLS on the Zumero IIS Site. Android Ice Cream Sandwich (android-14: x86, armeabi and armeabi-v7a) or later.SQL Server 2008 R2 (10.5) or later ZSS Manager:ĭatabase: Generally, SQLite 3.7 or later - see the platform readmes in the client SDK for platform-specific details What are the ZSS Operating System and Server requirements? ZSS Server: When syncing, the server allows SQL Server to assign "final" values, which are synced back to the client. In client databases, temporary sequential values are inserted for new rows. Your identity columns will continue to work as you'd expect. Do I have to change them to GUIDs to comply with Zumero's distributed model? (See the ZSS Manager User Guide for background) Does ZSS support SQL Server identity columns? My SQL Server database uses identity columns. If any prepared table has an IDENTITY column for its primary key, the Zumero user will also need ALTER permission. (See the ZSS Manager User Guide for background) You should now confirm that the user has VIEW SERVER STATE permission. The username/password you chose can be used as UID and PWD Under the Membership tab, select at least "db_datareader" and "db_datawriter".Ĭlick OK to create the user. Select a SQL User name (often the same as the login),Īnd include the login name you created earlier. On the resulting dialog, choose "New User With Login". Under thatĭatabase, select "Security -> Users -> New User". Under the "Databases" folder, find the database for which you want to create a SQL User. Zumero as the default database for this login. On the "Login - New" page, add a login name and password, and select the database you'll be using with SQL Server Management Studio, then select "New -> Login". Right-click the "Security" subfolder under your server in Launch Microsoft SQL Server Management Studio.įirst, you'll need to create a login. How do I create a user for ZSS in SQL Server? Update the connection string there, optionally using the Connection String Wizard. How do I change the ODBC connection string used by ZSS Server? You will not beĪble to delete an activation once it's created, so using a fully qualified domain name will allow your ZSS server to be moved ![]() Note: It is highly recommended that you do not use an IP address in your sync URL. Then visit the Activation page in your web browser to lookup yourĪctivation history and create a new activation for your sync URL.
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