ObjectDB Database Search
1-13 of 13 resultsFROM clause (JPQL / Criteria API)
, LOWER, MAX, MEMBER, MIN , MOD, NEW, NOT, NULL, NULLIF, OBJECT, OF, OR, ORDER, OUTER, POSITION, SELECT
|
|
Is ObjectDB better than competing object databases?
do not support aggregate queries (max, min , count, sum and avg). ObjectDB supports rich queries
|
|
Index Definition
. ObjectDB also uses indexes for sorting results and for projection: SELECT MIN (p.x) FROM Point p WHERE p.x
|
|
JPA Query Structure (JPQL / Criteria)
) Criteria WHERE ( where ) Criteria GROUP BY / HAVING ( groupBy , having , count , sum , avg , min
|
|
jakarta.persistence.criteria.CriteriaBuilder
to max operation Returns: max expression. Since: Jakarta Persistence (JPA) 1.0 Expression min ( Expression x ) Create an aggregate expression applying the numerical min operation. Parameters: x - expression representing input value to min operation Returns: min expression. Since: Jakarta Persistence (JPA
|
|
Soft Reference Object Cache Recommendation
collection option and explicitly set the min and max heap sizes. Another option that affects soft
|
|
objectdb on single server 20TB storage possible ?
; 2600.0000 CPU min MHz: 1500
|
|
Memory Leak in EntityManagerFactory ?
testet only for 15 min ). Arne Arne Stocker In that case we have to look elsewhere. When applying
|
|
objectdb got hang after fetch some record.
same machine. This is happening if multiple thread(20-50) accessing db parallelly for 30-40 min
|
|
Server connection management
to have configuration settings to control the connection pool ( min /max connections, etc...). Thanks, Carl
|
|
ObjectDB is opening too many sockets
this more on idle instances. thamal Tomas Hamal I forgot to attach the heap dumps: idle2_4_ min - Server
|
|
javax.servlet.ServletException: Annotated methods must follow the JavaBeans naming convention. __odbHidden_getPropertyName
widthPxSideBarLeft = 250; @ Min (150) @Max(400)   ... ; } It appears in part of a JSF template with dynamic CSS style parameters: style=" min
|
|
Server out of memory exceptions
After running for about 15mins I get out of memory exceptions The test fails faster (in about 2 mins
|