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2. Rollback (data management) - Wikipedia

   en.wikipedia.org/wiki/Rollback_(data_management)

   SQL refers to Structured Query Language, a kind of language used to access, update and manipulate database. In SQL, ROLLBACK is a command that causes all data changes since the last START TRANSACTION or BEGIN to be discarded by the relational database management systems (RDBMS), so that the state of the data is "rolled back" to the way it was before those changes were made.

3. Savepoint - Wikipedia

   en.wikipedia.org/wiki/Savepoint

   A savepoint is a way of implementing subtransactions (also known as nested transactions) within a relational database management system by indicating a point within a transaction that can be "rolled back to" without affecting any work done in the transaction before the savepoint was created. Multiple savepoints can exist within a single ...

4. Isolation (database systems) - Wikipedia

   en.wikipedia.org/wiki/Isolation_(database_systems)

   Isolation is typically enforced at the database level. However, various client-side systems can also be used. It can be controlled in application frameworks or runtime containers such as J2EE Entity Beans [2] On older systems, it may be implemented systemically (by the application developers), for example through the use of temporary tables.

5. Database transaction - Wikipedia

   en.wikipedia.org/wiki/Database_transaction

   A database transaction symbolizes a unit of work, performed within a database management system (or similar system) against a database, that is treated in a coherent and reliable way independent of other transactions. A transaction generally represents any change in a database. Transactions in a database environment have two main purposes:

6. Two-phase commit protocol - Wikipedia

   en.wikipedia.org/wiki/Two-phase_commit_protocol

   The coordinator sends a rollback message to all the participants. Each participant undoes the transaction using the undo log, and releases the resources and locks held during the transaction. Each participant sends an acknowledgement to the coordinator. The coordinator undoes the transaction when all acknowledgements have been received.

7. Tableau Software - Wikipedia

   en.wikipedia.org/wiki/Tableau_Software

   On June 10, 2019, Tableau was acquired by Salesforce in an all-stock deal worth $15.7 billion, being the largest acquisition in Salesforce's history at the time. [40] In March 2021, Tableau announced the appointment of Mark Nelson as president and CEO, replacing Adam Selipsky. [41] Current CEO of Tableau is a longtime Salesforce exec Ryan Aytay ...