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Usually, dbmlsync determines what to upload by using the SQL Anywhere transaction log.
SQL Anywhere databases maintain transaction logs by default. You can determine where the transaction log is located, or whether to have one, when you create the database or subsequently using the dblog utility.
The transaction log is not required to synchronize scripted upload publications or only use download-only publications.
To prepare the upload, the dbmlsync utility requires access to all transaction logs written since the last successful synchronization of all subscriptions for the MobiLink user who is synchronizing. However, SQL Anywhere log files are typically truncated and renamed as part of regular database maintenance. In such a case, old log files must be renamed and saved in a separate directory until all changes they describe have been synchronized successfully.
You can specify the directory that contains the renamed log files on the dbmlsync command line. You may omit this parameter if the working log file has not been truncated and renamed since you last synchronized, or if you run dbmlsync from the directory that contains the renamed log files.
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