 59 | " synchronized="false" />
<query-cache results ... " operations (which modify the database) have to be recorded. For debugging of query failure ... execution of relevant queries. The <query-cache> element
<query-cache results="32mb" programs="500 |
59 | The ORDER BY clause specifies a required order for the query results. Any JPQL query that does not ... Expressions The following query returns names of countries whose population size ... directly from expressions in the SELECT clause are allowed in the ORDER BY clause. The following query |
56 | , string, date). Simple type values are more useful in queries. They have special operators ... through a NULL value The following query retrieves country names with their capital city names:
SELECT ... . It might be easier to understand exactly how this works by considering the equivalent JOIN query |
50 | javax.jdo.annotations Annotation Query Target: Classes Annotation for a named query. Corresponds to the xml element "query". Since: JDO 2.1 Extension[] extensions Vendor extensions. Vendor extensions ... of the fetch plan used by this query The name of the fetch plan used by this query Returns: the fetch plan |
50 | Most JPQL queries use at least one comparison operator in their WHERE clause. Comparison Operators ... , the JDO Query Language). ObjectDB supports both forms. Besides the different notation ... can be compared by using any comparison operator. Equality operators (=, <>, ==, !=) on strings in queries |
50 | Logical operators in JPQL and in JPA criteria queries enable composition of complex JPQL boolean ... , the JDO Query Language). ObjectDB supports both forms. Binary AND (&&) Operator The following query ... The following query retrieves countries whose population or area exceeds a specified limit:
SELECT c FROM |
49 | Method javax.jdo.Query void addSubquery( Query sub, String variableDeclaration, String candidateCollectionExpression, String... parameters ) Add a subquery to this query. A subquery is composed as a Query and subsequently attached to a different query (the outer query) by calling |
49 | of NoSQL technology, which are weak query capabilities and lack of ACID (atomicity, consistency, isolation, durability). Unlike other NoSQL solutions, ObjectDB provides full support of rich complex queries, using two standard Java query languages: JPQL (Java Persistence Query Language) and JDOQL (JDO |
47 | Method javax.jdo.Query void addSubquery( Query sub, String variableDeclaration, String candidateCollectionExpression, Map parameters ) Add a subquery to this query. The Map version ... without the leading ":", and the value as the name of the expression in the outer query. If the trimmed |
47 | Method javax.persistence.Query List getResultList() Execute a SELECT query and return the query ... for a Java Persistence query language UPDATE or DELETE statement QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled |