Comparison of SQL Server Compact, SQLite, SQL Server Express and LocalDB

Information about LocalDB comes from here and SQL Server 2014 Books Online. LocalDB is the full SQL Server Express engine, but invoked directly from the client provider. It is a replacement of the current “User Instance” feature in SQL Server Express.

Feature

SQL Server Compact 3.5 SP2

SQL Server Compact 4.0

SQLite, incl SQLite ADO.NET Provider

SQL Server
Express 2012

SQL Server 2012 LocalDB

Deployment/ Installation Features

         

Installation size

2.5 MB download size
12 MB expanded on disk

2.5 MB download size
18 MB expanded on disk

10 MB download, 14 MB expanded on disk

120 MB download size
> 300 MB expanded on disk

32 MB download size
> 160 MB on disk

ClickOnce deployment

Yes

Yes

Yes

Yes

Yes

Privately installed, embedded, with the application

Yes

Yes

Yes

No

No

Non-admin installation option

Yes

Yes

Yes

No

No

Runs under ASP.NET

No

Yes

Yes

Yes

Yes

Runs on Windows Mobile / Windows Phone platform

Yes

No

Yes

No

No

Runs on WinRT (Phone/Store Apps)

No

No

Yes

No

No

Runs on non-Microsoft platforms

No

No

Yes

No

No

Installed centrally with an MSI

Yes

Yes

Yes

Yes

Yes

Runs in-process with application

Yes

Yes

Yes

No

No (as process started by app)

64-bit support

Yes

Yes

Yes

Yes

Yes

Runs as a service

No – In process with application

No - In process with application

No - In process with application

Yes

No – as launched process

Data file features

         

File format

Single file

Single file

Single file

Multiple files

Multiple files

Data file storage on a network share

No

No

No

No

No

Support for different file extensions

Yes

Yes

Yes

No

No

Database size support

4 GB

4 GB

140 TB

10 GB

10 GB

XML storage

Yes – stored as ntext

Yes - stored as ntext

Yes, stored as text

Yes, native

Yes, native

Binary (BLOB) storage

Yes – stored as image

Yes - stored as image

Yes

Yes

Yes

FILESTREAM support

No

No

No

Yes

No

Code free, document safe, file format

Yes

Yes

Yes

No

No

Programmability

         

Transact-SQL - Common Query Features

Yes

Yes

No

Yes

Yes

Procedural T-SQL - Select Case, If, features

No

No

Limited

Yes

Yes

Remote Data Access (RDA)

Yes

No (not supported)

No

No

No

ADO.NET Sync Framework

Yes

No

No

Yes

Yes

LINQ to SQL

Yes

No (not supported)

No

Yes

Yes

ADO.NET Entity Framework 4.1

Yes (no Code First)

Yes

Yes

Yes

Yes

ADO.NET Entity Framework 6

Yes (fully)

Yes (fully)

Yes (limited)

Yes

Yes

Subscriber for merge replication

Yes

No

No

Yes

No

Simple transactions

Yes

Yes

Yes

Yes

Yes

Distributed transactions

No

No

No

Yes

Yes

Native XML, XQuery/XPath

No

No

No

Yes

Yes

Stored procedures, views, triggers

No

No

Views and triggers

Yes

Yes

Role-based security

No

No

No

Yes

Yes

Number of concurrent connections

256 (100)

256

Unlimited

Unlimited

Unlimited (but only local)

There is also a table here that allows you to determine which Transact-SQL commands, features, and data types are supported by SQL Server Compact 3.5 (which are the same a 4.0 with very few exceptions), compared with SQL Server 2005 and 2008.

参考

SQLite——只要3分钟,你就可以在.NET上创建和运行它

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