Definitions for "Roll back"
Keywords:  undo, commit, uncommitted, cancel, sql
To return the values changed by a transaction to their original state.
Undo any changes to data that have been performed by SQL statements within an uncommitted transaction. After a transaction has been committed, it cannot be rolled back. Oracle uses rollback segments to store old values. The redo log contains a record of changes. See Also: commit, transaction, rollback segment
The process of restoring data changed by SQL statements to the state at its last commit point.
Keywords:  t'ai, robber, chi, welcome, posture
"To open the door and welcome the robber", basic T'ai Chi posture yielding to the opponent and letting him or her come forward and going with that individual's incoming energy.
Keywords:  fences, tight, turn, performed, two
A tight turn performed between two fences.
When an investor replaces an old options position with new one having an earlier expiration date (and the same strike price).
Keywords:  instead, return, see
See Instead: Return