Use the syconfig.exe and sybatch.exe utilities to upgrade SAP ASE versions earlier than 16.0.
The executable files that run the preupgrade and upgrade utilities are SyConfig (a GUI application that you start with syconfig.exe), and SyBatch (a command line utility you start with sybatch.exe).
Each new server version contains features that introduce parameters, commands, reserved words, and so on. The preupgrade utility prepares the old server by making sure all necessary directories and settings are correct for the upgrade. When running the preupgrade utility, manually stop and start the server. You need not start the server before running the syconfig.exe upgrade utility; the utility starts the server when needed.
Manually drop objects before you execute procedures for the first time. The first time you run the server after an upgrade, the server internally rebuilds procedures from the text in syscomments. The procedure may not execute properly if it contains code that drops, then re-creates, an existing object.