c-treeRTG supports transactions management via the START TRANSACTION, COMMIT and ROLLBACK statements. These statements don’t trigger a connection to the c-tree server, though.

Despite it’s good practice to start a transaction only after the files have been opened, some programmers prefer to start the transaction before opening the files, e.g.:

The START TRANSACTION in the above snippet may fail if the connection to c-tree hasn’t been acquired yet. Only the OPEN statement triggers a connection to the c-tree server. The same workaround explained in Multithread programs can be applied, for instance:

Note, however, that the workaround would not be necessary if you start the transaction after opening the file, e.g: