111 | like operator (String), alsothere exists an @Index for String email pezifromvienna Peter Sauer Thank you for this report |
111 | String comparison in query where clauseI am having trouble getting a simple string comparison to work in an SQL "where" clause. It is my understanding that queries are case sensitive by default and I do not want that, so I am constructing the query as follows... SELECT e FROM Exercise AS e WHERE UPPER(e.name) = ?0 and then I |
21 | Error reading UTF string (Serialized Objects in Explorer)Error reading UTF string (Serialized Objects in Explorer) |
11 | Query Parameters in JPA with different parameter values (arguments) is more efficient than using a new query string for every query ... getCountryByName(EntityManager em, String name) { TypedQuery<Country> query = em.createQuery ... . Named parameters can be easily identified in a query string by their special form, which is a colon |
11 | javax.persistence.criteria.CriteriaBuilder - expression Returns: coalesce expression Since: JPA 2.0 Expression<String> concat( Expression<String> x, String y) Create an expression for string concatenation. Create an expression for string concatenation. Parameters: x - string expression y - string Returns: expression corresponding to concatenation |
10 | Literals in JPQL and Criteria Queries including NULL, boolean literals (TRUE and FALSE), numeric literals (e.g. 100), string literals (e.g ... ), a feature that is not currently supported by all JPA implementations. String Literals JPQL follows the syntax of SQL for string literals in which strings are always enclosed in single quotes (e.g |
10 | Index Definition.jdo.annotations.Unique; @Entity public class EntityWithSimpleIndex { @Index String ... , Long, Float, Double. java.math.BigInteger, java.math.BigDecimal. java.lang.String. java.util.Date ... ","firstName"}) public class EntityWithCompositeIndex { String firstName; String lastName |
1 | [ODB1] Chapter 7 - JDOQL Queries two newQuery(...) forms: Query newQuery(Extent candidates, String filter) Query newQuery(Class cls, String ... , rather than an Extent: Query newQuery(Class cls, Collection candidates, String filter) Querying ... pcs) void setCandidates(Extent pcs) void setFilter(String filter) 7.2 Query Filter Syntax |
1 | [ODB1] Chapter 2 - A Quick Tour The HelloWorld sample program manages a list of strings in the database. Each time the program is run another string is stored in the database and all the strings in the database are printed to standard ... of two strings "Hello World 0" and "Hello World 1". Program Source Code The program consists of a single |
1 | [ODB1] Chapter 6 - Persistent Objects by reachability is applicable to all persistent types, including system types, such as String ... ObjectDB returns the numeric ID of the object as a string. The ability to convert Object IDs to strings, and the ability to convert strings back to object IDs (as shown in the next section), make object |
