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  2. Optimistic concurrency control - Wikipedia

    en.wikipedia.org/wiki/Optimistic_concurrency_control

    The Ruby on Rails framework has an API for OCC. [6] The Grails framework uses OCC in its default conventions. [7] The GT.M database engine uses OCC for managing transactions [8] (even single updates are treated as mini-transactions). Microsoft's Entity Framework (including Code-First) has built-in support for OCC based on a binary timestamp ...

  3. Create, read, update and delete - Wikipedia

    en.wikipedia.org/wiki/Create,_read,_update_and...

    In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports .

  4. ActiveX Data Objects - Wikipedia

    en.wikipedia.org/wiki/ActiveX_Data_Objects

    The data are updated at the data source after the record is changed and the Update method is called. Batch The recordset is locked using adLockBatchOptimistic and each time Update is called the data are updated in a temporary buffer. Finally, when UpdateBatch is called the data are completely updated back at the data source.

  5. Entity Framework - Wikipedia

    en.wikipedia.org/wiki/Entity_framework

    Entity Framework (EF) is an open source [2] object–relational mapping (ORM) framework for ADO.NET. It was originally shipped as an integral part of .NET Framework, however starting with Entity Framework version 6.0 it has been delivered separately from the .NET Framework. Entity Framework 6.4 was the latest release of the classic framework.

  6. Select (SQL) - Wikipedia

    en.wikipedia.org/wiki/Select_(SQL)

    A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, SELECT is the most commonly used data manipulation language (DML) command. As SQL is a declarative programming language, SELECT queries specify a result set, but do not specify how to calculate it.

  7. SQL Server Compact - Wikipedia

    en.wikipedia.org/wiki/SQL_Server_Compact

    SQL Server Compact shares a common API with the other Microsoft SQL Server editions. [4] It also includes ADO.NET providers for data access using ADO.NET APIs, and built-in synchronization capabilities, [2] as well as support for LINQ and Entity Framework.

  8. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    The following example of a SELECT query returns a list of expensive books. The query retrieves all rows from the Book table in which the price column contains a value greater than 100.00. The result is sorted in ascending order by title. The asterisk (*) in the select list indicates that all columns of the Book table should be included in the ...

  9. Atomicity (database systems) - Wikipedia

    en.wikipedia.org/wiki/Atomicity_(database_systems)

    In database systems, atomicity (/ ˌ æ t ə ˈ m ɪ s ə t i /; from Ancient Greek: ἄτομος, romanized: átomos, lit. 'undividable') is one of the ACID (Atomicity, Consistency, Isolation, Durability) transaction properties. An atomic transaction is an indivisible and irreducible series of database operations such that either all occur ...