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Using
Embedded SQL, a programmer is responsible for writing explicit code to fetch data into memory or store data back to the database. In a persistent programming language, a programmer can manipulate persistent data without having to write such code explicitly.
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A persistent programming language is a programming language extended with constructs to handle persistent data. It is distinguished from embedded SQL in at least two ways:
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have different type systems, code conversion operates outside of the OO type system, and hence has a higher chance of having undetected errors.
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Any format changes required between the host language and the database are carried out transparently.
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While they are powerful, it is easy to make programming errors that damage the database.
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The query language is fully integrated with the host language and both share the same
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must be handled explicitly and takes a substantial amount of code.
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The drawbacks of persistent programming languages include:
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It is harder to do automatic high-level optimization.
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171:Learn how and when to remove this message
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120:"Persistent programming language"
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