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10

Lazy Init / Eager / Join Fetch collection strategy ? What to choose ?

://zeroturnaround.com/rebellabs/how-to-use-jpa-correctly-to-avoid-complaints-of-a-slow-application/ In this article ... , but may also consume too much RAM and becomes slow. Unfortunately there is no one best solution
10

JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step ... the way is slow. We have an own entity for storing binary data (pictures, documents). Hint
10

performance limit

should take only milliseconds. There could be several reasons for slow query execution, including indexes ... the query results could be very slow if eager fetch is used extensively, and then your 6500 result
10

Left join fetch behaviour doesn't retrieve children?

-of-a-slow-application/ ). Indeed for H2 + Hibernate that's the best solution ! And the worst for ObjectDb ... benchmarks to your test case, because buggy implementations could make the test right but slow
7

Objectdb EntityManagerFactory problem

, creating an EntityManagerFactory is relatively slow. It is usually better to use
7

Low performance when getting grove roots

the application with the same DB, I see the original behavior (working but slow). Providing the test
2

queries under 2.7.6_4 significantly slower than under 2.7.6

help with selecting query plan hints to optimise other slow query plans we can help ... solution proceeds. If you can provide several different queries (that are known to be slow
2

cannot delete objects after crash (see issue 2283)

, it is more or less not acceptable to slow down the system like this hgzwicker Hans-Georg Zwicker File sync is a slow operation so this is expected. Although we cannot improve the speed of the sync
2

Blocked by find

, this may just be slow performance rather than blocking. The attached test writes data to a db ... to maximise objectdb performance it'd be appreciated. felixobjectdb Richard Szurgot Extremely slow
2

ObjectDB 2.8.7

Added an option to slow backup (see feature request #2681). Added an option to view old type versions in the Explorer (-Dobjectdb.ui.debug=true) Improved the Doctor (see issue #2691). Improved ... on a server to 2 seconds(see issue #2686). Fixed a bug in the new option to slow backup in client

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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