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Hibernate is free software that is distributed under the GNU Lesser General Public License 2.1. Hibernate's primary feature is mapping from Java classes to database tables, and mapping from Java data types to SQL data types. Hibernate also provides data query and retrieval facilities.
[11] [12] Both input and output parameters must be passed into the database for stored procedures. [13] Update statements such as INSERT, UPDATE and DELETE return an update count indicating the number of rows affected in the database as an integer. [13] These statements do not return any other information. Query statements return a JDBC row ...
BeginTransaction ()) {//The line below adds the customer to NHibernate's list of objects to insert to the database //but it doesn't execute SQL insert command at this stage*. //*if the Id field is generated by the database (e.g. an auto-incremented number) //then NHibernate will execute SQL INSERT when .Save is called session.
In the above example, the application might supply the values "bike" for the first parameter and "10900" for the second parameter, and then later the values "shoes" and "7400". The alternative to a prepared statement is calling SQL directly from the application source code in a way that combines code and data.
In the SQL 1992 specification, the types of components that can be created are schemas, tables, views, domains, character sets, collations, translations, and assertions. [2] Many implementations extend the syntax to allow creation of additional elements, such as indexes and user profiles.
A block comment is delimited with text that marks the start and end of comment text. It can span multiple lines or occupy any part of a line. It can span multiple lines or occupy any part of a line. Some languages allow block comments to be recursively nested inside one another, but others do not.
An object–relational database (ORD), or object–relational database management system (ORDBMS), is a database management system (DBMS) similar to a relational database, but with an object-oriented database model: objects, classes and inheritance are directly supported in database schemas and in the query language.
An entity–attribute–value model (EAV) is a data model optimized for the space-efficient storage of sparse—or ad-hoc—property or data values, intended for situations where runtime usage patterns are arbitrary, subject to user variation, or otherwise unforeseeable using a fixed design.