delete all duplicate records in a table

Ngày tải lên: 21/01/2014, 12:20

... 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...

Ngày tải lên: 24/12/2013, 05:15

Ngày tải lên: 13/05/2014, 12:19

... 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...

Ngày tải lên: 09/10/2013, 12:20

... 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...

Ngày tải lên: 11/12/2013, 02:15

... 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",...

Ngày tải lên: 24/12/2013, 05:15

Ngày tải lên: 17/01/2014, 18:20

Ngày tải lên: 21/01/2014, 11:20

Ngày tải lên: 21/01/2014, 12:20

Ngày tải lên: 20/06/2014, 08:20

Ngày tải lên: 07/07/2014, 12:20

Ngày tải lên: 07/08/2014, 21:21

Ngày tải lên: 11/08/2014, 17:20

Ngày tải lên: 12/08/2014, 20:20

... 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...

Ngày tải lên: 12/09/2012, 14:40

Ngày tải lên: 04/10/2012, 10:24

Ngày tải lên: 04/10/2012, 10:25

... 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...

Ngày tải lên: 25/10/2012, 10:02

... 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...

Ngày tải lên: 25/10/2012, 10:06

... 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...

Ngày tải lên: 25/10/2012, 10:31