ROLLBACK, ROLLBACK ALL Statements
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 Action

 Rescind all or part of the operations of a transaction (a series of ISAM
 database operations).


 Syntax


  ROLLBACK  savepoint%

  ROLLBACK  ALL

 Remarks


 The  savepoint% is an integer that identifies a savepoint within a
 transaction -- a series of ISAM database operations that is either committed
 as a whole or rescinded. Use the savepoint function to designate a
 savepoint, which marks the beginning of a subset of operations that can be
 rescinded.

 If you specify a  savepoint% argument,  ROLLBACK returns the data affected
 by a transaction to its state at that savepoint.

 If you do not specify a  savepoint% argument,  ROLLBACK returns the data
 affected by the transaction to its state at the previous savepoint, or at
 the beginning of the transaction if there are no intermediate savepoints.

  ROLLBACK  ALL rescinds all operations in a transaction and returns the data
 to its initial state at the beginning of the transaction. Use  BEGINTRANS to
 indicate the beginning of a transaction. Use  COMMITTRANS to commit all
 operations since the most recent  BEGINTRANS statement.


 See Also

  BEGINTRANS,  COMMITTRANS,  SAVEPOINT


 Example

 See the  BEGINTRANS statement programming example, which uses the  ROLLBACK
 statement.