Hướng dẫn học Microsoft SQL Server 2008 part 141 potx
Hướng dẫn học Microsoft SQL Server 2008 part 141 potx
... transaction and updates the Department table:
Transaction 1
USE AdventureWorks2008;
BEGIN TRANSACTION;
UPDATE HumanResources.Department
SET Name = ‘New Name’
WHERE DepartmentID = 1;
Transaction ... compatible they are with each
other, are documented in BOL.
SQL Server s default transaction isolation is read committed, meaning that SQL Server ensures that only
committed data i s read....
Hướng dẫn học Microsoft SQL Server 2008 part 15 potx
... world of SQL Server. The top level of the
tree lists the connected servers. Object Explorer can connect to a server regardless of whether the
server is known by Registered Servers. The server icon ... side.
Registered Servers
Registered Servers is an optional feature. If you manage only one or a few SQL Servers, then Registered
Servers offers little benefit. If, however, you are res...
Hướng dẫn học Microsoft SQL Server 2008 part 26 potx
... types: DateTime and DateTime2. DateTime2 is new to SQL
Server 2008 and represents time to a much finer granularity: within 100 nanoseconds.
■ DatePart(date portion, date): Returns the ordinal number ... the complete date, only
the date part being extracted:
select DATEDIFF(year,’september 4 2008 ,’november 10 2009’)
Result
1
select DATEDIFF(month,’september 4 2008 ,’november 10 2009’...
Hướng dẫn học Microsoft SQL Server 2008 part 31 potx
... ProductCategoryID
FROM dbo.ProductCategory
Where ProductCategoryName = ‘Kite’);
To execute this query, SQL Server first evaluates the subquery and returns a value to the outer query
(your unique identifier ... Practice
S
QL is very flexible — there are often a dozen ways to express the same question. Your choice of SQL
method should be made first according to your style and to which method...
Hướng dẫn học Microsoft SQL Server 2008 part 32 potx
... rows, then SQL Server will execute the logical equivalent of 101
queries — one for the outer query, and one subquery for every row returned by the outer query.
In practice, the SQL Server Query ... 4
8 Melanie Campbell 3
12 Alysia Halloway 3
20 Grace Halloway 2
Row constructors
New for SQL Server 2008, row constructors provide a convenient way to supply hard-coded values
direct...
Hướng dẫn học Microsoft SQL Server 2008 part 58 potx
... - 07/23/2009 8:26pm Page 536
Part IV Developing with SQL Server
Using uniqueidentifier surrogate primary keys
The uniqueidentifier data type is SQL Server s counterpart to .NET’s globally unique ... NONCLUSTERED,
541
www.getcoolebook.com
Nielsen c20.tex V4 - 07/23/2009 8:26pm Page 538
Part IV Developing with SQL Server
Declarative referential integrity
SQL Server s declarativ...
Hướng dẫn học Microsoft SQL Server 2008 part 70 potx
... 658
Part IV Developing with SQL Server
What’s New with DDL Triggers
I
ntroduced in SQL Server 2005, DDL triggers were extended to include logon triggers with SQL Server 2005
SP2. For SQL Server 2008, ... The first DDL trigger
handles all server- level events:
CREATE TRIGGER DDL _Server_ Level_Sample
ON ALL SERVER
FOR DDL _SERVER_ LEVEL_EVENTS
AS
Set NoCount ON
Print ‘DDL...
Hướng dẫn học Microsoft SQL Server 2008 part 82 potx
... working its way down?
One might assume that, but that is not how a query is processed in SQL Server at all. SQL Server logi-
cally processes a query in the order indicated here by the number in parentheses:
(8) ... ‘‘leapfrogged’’ over C. Those familiar with Microsoft s
ORM history know that LINQ to SQL is not Microsoft s first endeavor at object-relational mapping. The
roots of LI...
Hướng dẫn học Microsoft SQL Server 2008 part 92 potx
... Access is submitting to SQL Server: SQL Server Profiler and
ODBC Trace.
SQL Server Profiler is indispensable for understanding the interaction between your Access front end
and SQL Server. Selecting ... interacts with SQL
Server — and how to work with SQL Server Profiler and ODBC Trace — is contained in
the white paper ‘‘Optimizing Microsoft Office Access Applications Link...
Hướng dẫn học Microsoft SQL Server 2008 part 99 potx
... 1
IMultipartNameFacet 1 1 1 1
INameFacet 1 1 0 0
Index 1 1 0 0
IServerAuditFacet 1 1 0 0
IServerConfigurationFacet 1 1 1 0
IServerInformation 1 1 0 0
IServerPerformanceFacet 1 1 0 0
IServerSecurityFacet ... column to display the policy health of any object.
PBM requires SQL Agent to be running on the central monitoring server. Be sure that the
SQL Agent service is set to start automatica...
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