Precedence Graph

A precedence graph, also named conflict graph and serializability graph, is used in the context of concurrency control in databases.

The precedence graph for a schedule S contains:

  • A node for each committed transaction in S
  • An arc from Ti to Tj if an action of Ti precedes and conflicts with one of Tj's actions.

Read more about Precedence Graph:  Precedence Graph Example, Testing Serializability With Precedence Graph

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