1. Hibernate Example for Id column stackoverflow.comWhen I use hibernate Example API the Id column gets simply ignored, that is very annoying. I have a Table Temp(Id, Descr) and respective entity. And I want to do this: |
2. Hibernate with 2 column id coderanch.com |
3. what if no ID column in the table for Hibernate? coderanch.comIts not juts Hibernate - a relational datamodel require primary keys. So what you've got is a broken data model because without a primary key it can't be relational, and this is why its difficult to use with an ORM. You can fix this by defining a surrogate key. You can (possibly) work round this by mapping tables without primary keys ... |
4. First level cached only on @Id column, right? forum.hibernate.orgAm I correct in the understanding, that hibernate Session cache/1. level cache only caches entities based on the PK-mapped column. In my case, because I use JPA, the @Id annotated property? Reason I ask is, that I have mappings between entities on non-PK mapped entities (but they have a DB unique-constraint, so they ARE unique), and it would be ber cool, ... |
5. Changing the column parameters of a Key / ID column forum.hibernate.orgDoes any one know how to change the column information on an ID field. We have a legacy system that uses Oracle, and we currently key most of our objects with a Number(38). The schema tool generates Number(19,0) for id fields. I have tried using a property but that did not work. Any ideas? Mike... |
6. Can I use a column of comma delimited ids as FKs? forum.hibernate.orgSTUDENTS: ID NAME PROFESSORS --- ------- ------------- 1 Charles 101,102 PROFESSORS: ID NAME --- ------ 101 Dr. ... |
7. Getting and ssigning column ID value.... forum.hibernate.orgHi, I have 2 tables table1 and table2. Table1 has a primary key of tb1_id which acts as a foreign key in table2. In my maps, the ID for Table1 is sequenced and the ID for Table2 is assigned: Table1: |
8. Fixed-width ID columns? forum.hibernate.orgI'm using 2.1.6 with DB2 8.1 and would like to use the uuid.hex scheme as a CHAR(32) instead of a VARCHAR(32), for performance reasons. I've tried using a UserType with this: Code: public int[] sqlTypes() { return new int[] { Types.CHAR }; } ... |
9. Problem with columns named "id"? forum.hibernate.org |
10. Is id column compulsory for tables. forum.hibernate.org |
11. BigInteger ID columns forum.hibernate.orgI have an existing database and raw JDBC based project that I would like to transfer over to Hibernate with Annotations. I have so far written a very simple class to simluate the real project. Code: @Id @GeneratedValue BigInteger id; @Column(length = 100) String forename; @Column(length = 100) String surname; @Column(scale = 10, precision = 2) BigDecimal money; BigInteger bigNumber; I ... |
12. Problem with id column forum.hibernate.orgHi all, Iam using legacy Database( oracle 10g).I want to fetch datas from a view which has no unique key column.Is it possible to do?I have created the view from a audit track table which has no unique key.Then what should i specify in the id tag of the mapping file. Can anybody answer me? Regards, Karthik |
13. Need to qualify ID column with table name due to ambiguity forum.hibernate.orgHibernate version: 3.26 Name and version of the database you are using: MySQL 5.0.22 This is my first Hibernate forum help request. I have done a search of the FAQ and the general documentation and a preliminary search on the forums, but if I missed something I'm happy to be told, "It's there -- go find it." We have an object ... |
14. 2 different many-to-one with comp. id with one common column forum.hibernate.orgWe have a problem mapping on a legacy database We this table, ImpVerifi, that 3 many-to-one reletionship with 3 different tables, two of them with composite id here our mapping: Code: |