About LEFT OUTER JOIN

71-80 of 200Refresh
JPA Doc
4

javax.persistence.criteria.CriteriaQuery

removed, and results will be returned in no particular order. The left-to-right sequence of the ordering ... when it results from a get or join operation and the query result type is specified ... (Product.class); q2.select(q2.from(Order.class) .join("items
Forum
3

How to convert a boolean to an int in the query?

directly in the query, depending on the query for example SELECT DISTINCT m FROM Person m LEFT OUTER JOIN m.answers answers LEFT OUTER JOIN answers.persons likedPersons ORDER BY (m.approveEmail + m
Forum
3

@OneToOne query issue with OR and IS NULL

through a relationship is implemented using JOIN (i.e. INNER JOIN), and only the A instance that has another passes the FROM clause, which precedes the WHERE clause. Try LEFT OUTER JOIN: SELECT a FROM A a LEFT JOIN ... is a short form of the this equivalent query: SELECT a FROM A a JOIN a.another b
Issue
3

Issue with DISTINCT Select

.IndividualContact $1 LEFT JOIN $1.profile $2 WHERE ((TYPE($1)=class com.quasado.foundation.contact.api.model ... .contact.individual.IndividualContact $1 LEFT JOIN $1.profile $2 ORDER BY UPPER($1.profile.lastName ... !??   Alex Note: We're using the left join to select all entities, also those which have profile = null
JPA Doc
3

JoinType.RIGHT

Enum Constant javax.persistence.criteria.JoinType RIGHT Right outer join. Since: JPA 2.0
JPA Doc
3

javax.persistence.criteria.Subquery

root Since: JPA 2.0 Join correlate( Join parentJoin) Create a subquery join object correlated to a join object of the enclosing query. Create a subquery join object correlated to a join object of the enclosing query. Parameters: parentJoin - join object of the containing query Returns
Issue
3

Query Execution Error

JOIN $1.mitgliedschaft $2 LEFT JOIN $2.abteilungen $3 LEFT JOIN $3.abteilung $4 WHERE (((NOT ((($2 ... .mitglied.Mitglied $1 LEFT JOIN $1.mitgliedschaft $2 LEFT JOIN $2.abteilungen $3 LEFT JOIN $3.abteilung $4 ... DISTINCT $1 FROM com.lexware.vereinsverwaltung.verein.mitglied.Mitglied $1 LEFT JOIN $1.mitgliedschaft
Manual
3

Index Definition

above, the index order should be x first and y second. Indexes on collections are useful in JOIN queries: SELECT d FROM Document d JOIN d.words w WHERE w = 'JPA' The Document entity class contains a words ... for executing the following query: SELECT d FROM Document d JOIN d.words w WHERE LENGTH(w) >= 10
Forum
3

How do I achieve a Deep Fetch using JOIN FETCH?

know that I can express one level of eager fetch in JPQL as follows: SELECT c FROM C JOIN FETCH c.bList WHERE c.id=:id But when I attempt to take it to the 2nd level: SELECT c FROM C JOIN FETCH c.bList JOIN FETCH c.bList.aList WHERE c.id=:id I get an error along the lines of: Invalid fetch path
Forum
3

OR not working with isNull

to something such as: SELECT e FROM MyEntity e JOIN e.owner o WHERE o IS NULL OR o.id = :userId Notice that the navigation root.get("owner").get("id") is implemented as INNER JOIN. This is a requirement of the JPA specification, which is known to cause some confusion. You have to use LEFT OUTER JOIN explicitly to cover entities with a null owner. bhamilton