 User's Guide
  User's Guide  Part V.  The SQL Anywhere Programming Interfaces
  Part V.  The SQL Anywhere Programming Interfaces Chapter 38.  The WSQL HLI Interface
  Chapter 38.  The WSQL HLI InterfaceROLLBACK
To undo changes made to the database since the last COMMIT or ROLLBACK.
COMMIT.
This command undoes any changes made to the database since the last COMMIT or ROLLBACK.
This command is functionally similar to the SQL command ROLLBACK. See "ROLLBACK statement" for details.