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17

composite index not used in query

. [Step 1b] Filter the results of step 1a retaining only results that satisfy: (a.startDate>:1). [Step 1c] Retrieve fields in Action (a) instances. [Step 1d] Filter the results of step 1c retaining only results that satisfy: (a.type=0). [Step 1e] Filter the results of step 1d
3

javax.persistence.criteria.FetchParent

of the join Returns: the resulting fetch join Throws: IllegalArgumentException - if attribute of the given ... of the join jt - join type Returns: the resulting fetch join Throws: IllegalArgumentException ... - target of the join Returns: the resulting join Since: JPA 2.0 Fetch<X,Y> fetch( SingularAttribute
3

javax.persistence.NonUniqueResultException

.getSingleResult() is executed on a query and there is more than one result from the query ... , the default implementation returns the same result as getMessage(). Returns: The localized description ... line of output contains the result of the toString() method for this object. Remaining lines represent
3

javax.persistence.LockTimeoutException

not result in transaction rollback. This exception may be thrown as part of an API call, at, flush or ... returns the same result as getMessage(). Returns: The localized description of this throwable ... System.err. The first line of output contains the result of the toString() method for this object
3

javax.persistence.NoResultException

()is executed on a query and there is no result to return. This exception will not cause the current ... that do not override this method, the default implementation returns the same result as getMessage(). Returns ... of the field System.err. The first line of output contains the result of the toString() method for this object
3

getResultType()

Method javax.persistence.criteria.AbstractQuery Class<T> getResultType() Return the result type of the query or subquery. If a result type was specified as an argument to the createQuery or subquery ... , the result type is Tuple. Otherwise, the result type is Object. Returns: result type Since: JPA 2.0
3

Issue with UPPER ?

) except the missing UPPER() calls everywhere Case (2) -> fails badly and suddenly returns doubled results ... IndividualProfile ($3) instances   (for every result of step 1 ... OrganisationContact ($4) instances   (for every result tuple of the steps
0

setRange(fromInclToExcl)

Method javax.jdo.Query void setRange( String fromInclToExcl ) Set the range of results to return ... , :to");. The execution of the query is modified to return only a subset of results. If the filter would normally return 100 instances, and fromIncl is set to 50, and toExcl is set to 70, then the first 50 results
0

setRange(fromIncl, toExcl)

Method javax.jdo.Query void setRange( long fromIncl, long toExcl ) Set the range of results to return. The execution of the query is modified to return only a subset of results. If the filter ... results that would have been returned are skipped, the next 20 results are returned
0

addSubquery(sub, variableDeclaration, candidateCollectionExpression, parameters)

. The query parameter instance is unmodified as a result of the addSubquery or subsequent execution ... specification, uniqueness, result specification, and grouping specification. The association with a PersistenceManager, the candidate collection or extent, result class, and range limits are not used

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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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