A critique of ANSI SQL isolation levels

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A critique of ANSI SQL isolation levels (1995)

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by Jim Gray , U. C. Berkeley

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300 - 7 self

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@INPROCEEDINGS{Gray95acritique,
    author = {Jim Gray and U. C. Berkeley},
    title = {A critique of ANSI SQL isolation levels},
    booktitle = {},
    year = {1995},
    pages = {1--10},
    publisher = {ACM Press}
}

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Abstract

Reads, and Phantoms. This paper shows that these phenomena and the ANSI SQL definitions fail to properly characterize several popular isolation levels, including the standard Ioeking implementations of the levels covered. Ambiguity in the statement of the phenomena is investigated and a more formal statement is arrived at; in addition new phenomena that better characterize isolation types are introduced. Finally, an important multiversion isolation type, called Snapshot Isolation, is defined. 1.

Keyphrases

ansi sql isolation level standard ioeking implementation addition new phenomenon snapshot isolation several popular isolation level ansi sql definition isolation type important multiversion isolation type formal statement

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