delete all duplicate records in a table
Tài liệu Counting Records in a DataReader ppt
Ngày tải lên :
24/12/2013, 05:15
... HasRows( ) method of the DataReader was introduced in Version 1.1 of the .NET
Framework. It returns a Boolean value indicating whether the DataReader contains at
least one row.
There is also ... determine the number of records in the result
set for the DataReader without iterating through all of the records. Additionally, because
the DataReader is forward-only, you cannot move backwards ... forward-only, read-only access to a stream of rows from a data
source. It is optimized for performance by reading data directly from a connection to a
data source. As a result, there is no way...
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Calculations in a Pivot Table
Ngày tải lên :
09/10/2013, 12:20
... area, Years and Date are in the Row Labels area, and Units is in the Values area.
If you calculate a running total with Date as the base field:
ã The subtotals for Years are automatically hidden ... formula is changed.
3.17. Using Formulas: Creating a Calculated Field
Problem
In your pivot table, Rep and Product are in the Row Labels area. In the Values area, the Total
field shows the total sales ... inserted in the workbook, with a list of calculated items and a list of calculated
fields.
3.27. Using Formulas: Accidentally Creating a Calculated Item
Problem
Your pivot table contains a calculated...
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Tài liệu It’s All in a Day’s Work docx
Ngày tải lên :
11/12/2013, 02:15
... look at adding a maintainer. This is where
we get into really wrapping the
PPaacckkaaggeeFFiilleeMMaannaaggeerr
class into our GTK application.
A maintainer is someone who contributes to a PEAR
package. ... function.
They are passed, in order, after any arguments that are
automatically added by the callback. Here, we passed
zero as the start character to be deleted and -1 as the
last character to be deleted. ... this by adding a method
called
__ccrreeaatteeAAddddMMaaiinnttaaiinneerrPPaaggee(())
. This method will
create our information-gathering widgets, plus add a
way for us to get the information to...
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Tài liệu Determining the Length of Columns in a SQL Server Table doc
Ngày tải lên :
24/12/2013, 05:15
...
SqlDataAdapter da = new SqlDataAdapter(sqlText, conn);
// Add table mappings.
da.TableMappings.Add(" ;Table& quot;, "Orders");
da.TableMappings.Add(" ;Table1 ", "Order Details"); ...
Server Books Online.
The GetSchemaTable( ) method of the DataReader also returns all column lengths. The
method returns a DataTable containing column metadata for a DataReader, where the
ColumnSize ...
foreach(DataTable dt in ds.Tables)
{
schemaInfo.Append(" ;TABLE: " + dt.TableName + Environment.NewLine);
// Create the command to retrieve column information.
cmd = new SqlCommand("sp_help",...
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Multithreaded Programming in a Microsoft Win32* Environment
Ngày tải lên :
12/09/2012, 14:40
... performance of an application can be improved by creating a separate thread for performing each of
these activities rather than using a single thread to perform all these activities in a serial manner. ... that we should always create threads since at times there are certain disadvantages in using multiple
threads to accomplish a task in a program.
The overhead of adding threads, scheduling ... if a user wants to
cancel bringing in a large amount of data from a web page, a single threaded Internet browser application needs to have some process in place
to periodically check for cancellation...
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Báo cáo y học: "Emergency intraosseous access in a helicopter emergency medical service: a retrospective study"
Ngày tải lên :
25/10/2012, 10:02
... resuscitation of criti-
cally ill or injured adult and paediatric patients [1,2]. It
can be challenging to obtain vascular access, especially
in the resuscitation of small children in emergency
situations ... critically ill patients in
emergency situations. As part of their HEMS training
programme, intraosseous training was given using man-
ual needles, Bone Injection Guns, and EZ-IOđ on both
manikins and ... Heltne
1,2,3
Abstract
Background: Intraosseous access (IO) is a method for providing vascular access in out-of-hospital resuscitation of
critically ill and injured patients when traditional intravenous access...
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Báo cáo y học: "Management of chest pain: exploring the views and experiences of chiropractors and medical practitioners in a focus group interview"
Ngày tải lên :
25/10/2012, 10:06
... pain cases presenting earlier during an episode of
care-seeking, or more likely as a generalist to serve as a
main source of care overall for an entire chest pain epi-
sode. Along that same line, ... objective was to gain insight
into the care and management of patients with muscu-
loskeletal chest pain as experienced by both those with
chiropractic training, medical training or combined train-
ing.
Methods
Data ... to medical residencies in family practice. They usually
require approximately 360 additional hours of didactic
training, with only part of that training in a clinical set-
ting. There are efforts...
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Báo cáo y học: "Users' guides to the medical literature: how to use an article about mortality in a humanitarian emergency"
Ngày tải lên :
25/10/2012, 10:31
... studies in conflict settings as
diverse as Angola [27], Afghanistan [28], and Burma
(Myanmar) [29]. If a study omits children in addressing
population mortality, findings may exclude a large por-
tion ... Uppsala Conflict Database Program (a
database that contains information on armed conflicts of
the world since 1989) [5], and the Database on the
Human Impact of Complex Emergencies (CE-DAT) [6].
Using ... determine the validity of the study and the applicability of the findings to their
settings.
Public health scenario
You are a physician working for an international human-
itarian medical organization...
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