July 2012
Intermediate to advanced
816 pages
27h 38m
English
Content preview from Programming Microsoft® SQL Server® 2012Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Local Transaction Support in SQL Server
SQL Server, like any industrial-strength database engine, provides built-in support that enables you to wrap one or more queries inside a transaction. Local transactions (those that deal with only one physical database) operate in one of four transaction modes:
Autocommit
Explicit
Implicit
Batch-scoped
Autocommit Transaction Mode
The autocommit transaction mode is the default transaction mode. Under this mode, SQL Server ensures data sanctity across the lifetime of the query execution, regardless of whether you requested a transaction. For example, if you execute a SELECT query, the data will not change over the execution lifetime of the query. Likewise, if you execute a data manipulation language (DML) query ...
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