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[Vannessa Rataj]

Usingsomething specific in the present-moment scene to create a direct connection with a particular aspect of the flashback memory (general, specific, or anchor) will help you segue smoothly into the flashback scene.

The article will likely highlight the use of sensory details to evoke a memory and initiate the flashback. This could be a sight, smell, sound, taste, or touch that is strongly associated with the past event.

It got me to thinking about the Indiana Jones film series in general, and I realized something that I hadn't before. An internet search tells me I'm not the first to have the basic idea--maybe even Lucas has said things that alluded to it, but no one has really looked at the implications over the whole series.

The Indiana Jones of Raiders of the Lost Ark is not a good guy. This has been obscured a bit by him becoming a franchise hero and a pop cultural figure, but it's clear in the first film. I don't just mean with in regard to the colonialist elements of his work and adventures when viewed through a 2024 lens, I mean textually. Indiana Jones is a thief, as the opening sequence shows us. Maybe he steals artifacts to put them in museums instead of for the black market, but it's still theft and he's paid for it. The major difference between him and Belloq is that Belloq chooses to work with the Nazis and that's a step too far for Indy.

All of this was intentional because one of the inspirations for the character of Indiana Jones and his appearance was the roguish Harry Steele (Charlton Heston) in Secret of the Incas (1954). At the end of that film, Steele has at least partially been reformed by the love of a good woman--and conflict with antagonists more villainous than himself.

It's a lot like what happens to Indy in Raiders. He reconnects and rekindles his relationship with Marion, and he becomes motivated to stop the power of the Ark from falling into Nazi hands. In the end, the cynic and skeptic comes to respect the Ark's power and survives the apocalyptic judgement on the evildoers it unleashes. He and Marion head off together in a happy ending.

Really, Raiders seems like it's meant to be the ending to Indy's story. He gets his redemption and heads off into the sunset. The first sequel, Temple of Doom, respects this arc by being a prequel. It's a story of the old Indy before he met the Ark. Sure, he does return the stones to the village they belong to rather than steal them, but he was always a rogue with a heart of gold, so the occasional lapse into heroic action is allowable.

The only problem with ToD from this perspective, I think, is that Indy encounters the supernatural, which the Indy of Raiders seems skeptical of until he sees it in action. One would think he would be more of a believer if he had encountered such things before. I think this is the first indication of a formula beginning to develop.

The subsequent films are all sequels to Raiders, and more then ToD, tend to follow its formula. In order to do this, they have to backtrack a bit, not necessarily unrealistically, on Indy's redemption arc. Also, he's a bit less in need of that redemption because he's portrayed somewhat more heroically in these films. Nevertheless, we get the arc repeated with Indy reconciling with his father, reconciling with his son, his goddaughter, and again reconciling with Marion (in two films!). As with Raiders, a supernatural force and a battle with evil to possess it (and a realization that it can't be possessed) is the vehicle for this reconciliation. The needs of the franchise demand he never fully learns his lesson and gets his happy ending.

Last Crusade adds another interesting element that highlights this arc in case anyone was missing it. We have a flashback where the young Indiana Jones is in conflict with a treasure-hunter who is almost a double of his adult self over the Cross of Coronado. In the context of the more heroic version of Indy that developed since Raiders, Indy's "it belongs in a museum!" focus is contrasted with the venal treasure hunter. But curiously, the young Indy explicitly models his adult style on this hunter. The film remembers what the franchise is trying to forget. Adult Indiana was pretty much indistinguishable with the treasure hunter until he encounters the Ark.

Flashback is currently supported only over DML statements (INSERT, DELETE, UPDATE). An upcoming version of MariaDB will add support for flashback over DDL statements (DROP, TRUNCATE, ALTER, etc.) by copying or moving the current table to a reserved and hidden database, and then copying or moving back when using flashback. See MDEV-10571.

The real work of Flashback is done by mariadb-binlog with --flashback. This causes events to be translated: INSERT to DELETE, DELETE to INSERT, and for UPDATEs, the before and after images are swapped.

Model 88-5 FBR (R&L) regulator-type FlashGuard flashback arrestor prevents the reverse flow of gases with built-in check valves. It extinguishes flashback fire with a stainless steel sintered element. The 100 micron inlet filter helps keep dust and dirt out. Due to flow capacity, this model should not be used with tip sizes larger than No. 5 hand cutting tips (except No. 4-NFF), No. 5-1/2 machine cutting tips, No. 4 acetylene heating tips, No. 2 alternate fuel heating tips and No. 2 RBP cleaning head (no limitation with RBA). This model features 9/16 in. -18 CGA B-size connections. It is for use with oxygen and fuel gas.

Oracle Flashback Technology is a group of Oracle Database features that let you view past states of database objects or to return database objects to a previous state without using point-in-time media recovery.

Oracle Flashback features use the Automatic Undo Management (AUM) system to obtain metadata and historical data for transactions. They rely on undo data, which are records of the effects of individual transactions. For example, if a user runs an UPDATE statement to change a salary from 1000 to 1100, then Oracle Database stores the value 1000 in the undo data.

Undo data is persistent and survives a database shutdown. It is retained for the time specified by undo_retention, or up to the tuned undo retention in the presence of Automatic Undo Management (AUM). By using flashback features, you can use undo data to query past data or recover from logical damage. Besides using it in flashback features, Oracle Database uses undo data to perform these actions:

In application development, you can use these flashback features to report historical data or undo erroneous changes. (You can also use these features interactively as a database user or administrator.)

Use this feature to retrieve data for an earlier time that you specify with the AS OF clause of the SELECT statement. For more information, see Section 16.3, "Using Oracle Flashback Query (SELECT AS OF)."

Use this feature to retrieve metadata and historical data for a specific time interval (for example, to view all the rows of a table that ever existed during a given time interval). Metadata for each row version includes start and end time, type of change operation, and identity of the transaction that created the row version. To create an Oracle Flashback Version Query, use the VERSIONS BETWEEN clause of the SELECT statement. For more information, see Section 16.4, "Using Oracle Flashback Version Query."

Use this feature to retrieve metadata and historical data for a given transaction or for all transactions in a given time interval. To perform an Oracle Flashback Transaction Query, select from the static data dictionary view FLASHBACK_TRANSACTION_QUERY. For more information, see Section 16.5, "Using Oracle Flashback Transaction Query."

Typically, you use Oracle Flashback Transaction Query with an Oracle Flashback Version Query that provides the transaction IDs for the rows of interest (see Section 16.6, "Using Oracle Flashback Transaction Query with Oracle Flashback Version Query.")

Use this feature to set the internal Oracle Database clock to an earlier time so that you can examine data that was current at that time, or to roll back a transaction and its dependent transactions while the database remains online (see Flashback Transaction). For more information, see Section 16.7, "Using DBMS_FLASHBACK Package."

Use Flashback Transaction to roll back a transaction and its dependent transactions while the database remains online. This recovery operation uses undo data to create and run the corresponding compensating transactions that return the affected data to its original state. (Flashback Transaction is part of DBMS_FLASHBACK package.) For more information, see Section 16.7, "Using DBMS_FLASHBACK Package."

Use Flashback Data Archive to automatically track and archive historical versions of changes to tables enabled for flashback archive, ensuring SQL-level access to the versions of database objects without getting a snapshot-too-old error. For more information, see Section 16.9, "Using Flashback Data Archive."

This chapter focuses on the Section 16.1.1, "Application Development Features". For more information about the database administration features, see Oracle Database Administrator's Guide and the Oracle Database Backup and Recovery User's Guide.

For an automatically extensible undo tablespace, Oracle Database retains undo data longer than the longest query duration and the low threshold of undo retention specified by the UNDO_RETENTION parameter.

Setting UNDO_RETENTION does not guarantee that unexpired undo data is not discarded. If the system needs more space, Oracle Database can overwrite unexpired undo with more recently generated undo data.

You or your database administrator must grant privileges to users, roles, or applications that must use these flashback features. For information about the GRANT statement, see Oracle Database SQL Language Reference.

To allow a specific user to enable Flashback Data Archive on tables, using a specific Flashback Data Archive, grant the FLASHBACK ARCHIVE object privilege on that Flashback Data Archive to that user. To grant the FLASHBACK ARCHIVE object privilege, you must either be logged on as SYSDBA or have FLASHBACK ARCHIVE ADMINISTER system privilege.

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