enforcing uniqueness with null values

... records within the DataView Alternatively, you can use the Select( ) method on the DataTable underlying the DataView to retrieve an array of DataRow objects containing only rows with the null ShipRegion ... DataView associated with it that can filter a table for records meeting specific criteria In the solution, the RowFilter property of the DefaultView is filtered for rows containing a null ShipRegion ... IS NULL" ; DataView dv = (DataView)dataGrid.DataSource; if(filterButton.Text == "Apply Filter") { // Apply the filter dv.RowFilter = filter; dataGrid.CaptionText = "Orders table: filtered for null...

Ngày tải lên: 14/12/2013, 18:16

... if(isNullCheckBox.Checked) parameterTextBox.Text = ""; parameterTextBox.Enabled = !isNullCheckBox.Checked; } Discussion System.DBNull is not the same as null in C# or Nothing in VB.NET System.DBNull ... System.DBNull.Value for the value argument when constructing the parameter or by setting the Value property of the Parameter object to System.DBNull.Value To test for a null value, the IsDBNull( ... cmd.Parameters[0].Value = System.DBNull.Value; else cmd.Parameters[0].Value = parameterTextBox.Text; // Retrieve whether parameter null from stored procedure try { conn.Open( ); bool isNullParm = Convert.ToBoolean(cmd.ExecuteScalar(...

Ngày tải lên: 14/12/2013, 18:16

... DataSet without null annotation CategoriesDS_AnnotatedNull ds = new CategoriesDS_AnnotatedNull( ); // Fill the Categories table within DataSet da.Fill(ds, CATEGORIES_TABLE); // Add a row with a null ... IsNull method or StrongTypingException will // result when null row.Description is accessed String description = row.IsDescriptionNull( ) ? "NULL" : row.Description; // Note that the null ... Categories table with a Description value of null The data in the table is written to the text box on the form to demonstrate the effect of the schema annotation on null column values The C# code...

Ngày tải lên: 14/12/2013, 18:16

... UnitPrice column contains a null value As mentioned, a Sql* type can store a null value A null value is stored as Null For example: SqlMoney unitPrice = productsSqlDataReader.GetSqlMoney(unitPriceColPos); ... unitPrice = Null Each of the Sql* types also has a Boolean property named IsNull that is true when the Sql* object contains a null value For example: Console.WriteLine("unitPrice.IsNull = " + ... Console.WriteLine("unitPrice.IsNull = " + unitPrice.IsNull); This example displays: unitPrice.IsNull = True True is displayed because unitPrice contains Null ...

Ngày tải lên: 21/01/2014, 07:20

... with missing GCS scores will then have their missing values replaced with observed values selected at random, with replacement, from patients in the same subset i.e patients who are similar with ... “similar” to the patient with the missing GCS score In order to impute a particular GCS score, this method sorts patients both with observed values and those with missing values for this score into ... model with the same data used to build it, and to allow comparison with the data mining methods presented in this paper, a k-fold cross-validation technique was used to test all of the models, with...

Ngày tải lên: 28/03/2014, 23:20

... the design with l2 norm and the design with l∞ norm However, the computational complexity of the design with l2 norm is quite lower than the computational complexity of the design with l ∞ norm, ... estimate the Page of 17 channel in OFDM systems with null subcarriers Even though there is no closed form expression relating pilot placement with the MSE, we propose an algorithm that takes ... in an OFDM symbol But, this is not always possible if there are null subcarriers in the OFDM symbol As shown later, even with null subcarriers, the ˆ minimization of E{||h − h||2 } becomes possible...

Ngày tải lên: 21/06/2014, 03:20

... mechanically ventilated patients with either non-acute respiratory failure or with a primary or secondary lung disorder The results were compared with reference predicted FRC values, arterial oxygenation, ... mechanically ventilated patients with and without acute respiratory failure, measured EELV was markedly reduced in comparison with the predicted sitting FRC Only in patients with secondary lung disorders ... patients into three groups: patients without acute respiratory failure (group N), those with respiratory failure due to primary lung disorders (group P), and those with respiratory failure due to...

Ngày tải lên: 13/08/2014, 11:23

... those in group P had a primary lung disorder, and those in group S had a secondary lung disorder Values are expressed as mean ± standard deviation EELV, end-expiratory lung volume; FiO2, inspired...

Ngày tải lên: 13/08/2014, 20:21

... LITERATURE REVIEW 35 Remove genes with missing values Original Data Complete Data Generate missing values Accuracy Data with missing values Impute the missing values Imputed Data Figure 3.1: The ... dataset always has missing values In order to compare and validate imputation methods, a clean dataset without missing values is formed by discarding those genes with missing values from the original ... Methods for Dealing with Missing Values in Microarray Owing to the high number of genes and arrays involved with missing values, we need to use some method to impute the missing values as accurately...

Ngày tải lên: 11/09/2015, 16:03

... Example 6-22 Stored procedure: SP0607_Get CREATE PROCEDURE SP0607_Get @Id int =null AS SET NOCOUNT ON if @Id is not null begin select Id, Field1, Field2 from TBL0607 where Id=@Id return end select ... This is one of the following StatementType values from the StatementType enumeration: Select, Insert, Update, or Delete Gets or sets the action to take with the current and remaining rows during ... continue updating with the subsequent row The Update( ) method of the DataAdapter raises two events for every row in the data source that is updated The order of the events is: The values in the...

Ngày tải lên: 21/01/2014, 11:20

... People Have A Strange Sense Of Humor" ESP _NULL Operational Requirements ESP _NULL is defined by using NULL within the context of ESP section further defines ESP _NULL by pointing out particular operational ... Standards Track [Page 2] RFC 2410 NULL and IPsec November 1998 2.3 Padding NULL has a block size of byte, thus padding is not necessary 2.4 Performance The NULL encryption algorithm is significantly ... the development of interoperable NULL implementations test_case = data = data_len = NULL_ data = 0x123456789abcdef 0x123456789abcdef test_case = data = data_len = NULL_ data = "Network Security People...

Ngày tải lên: 14/02/2014, 16:20

... the protein with myc antibody When increasing amounts of lysate from cells transfected only with FLAG–GALE were immunoprecipitated, no GALE bands were detected on western blots probed with antibody ... acids that have been characterized, none of the mutations with mild defects are associated with these conserved amino acid residues, with the exception of N34S By contrast, all seven GALE mutants ... 293T cells grown on coverslips were transfected with myc– GALE or FLAG–GALE, fixed with 4% paraformaldehyde in NaCl ⁄ Pi for 20 min, and permeabilized with 1% Nonidet P-40 ⁄ 10 mm glycine for Cells...

Ngày tải lên: 07/03/2014, 00:20

... assistance with the project’s report editing tasks along with Chris Ware, Environmental Scientist, SJRWMD Carol Miller, Administrative Assistant, SJRWMD, is to be recognized for her help with administrative ... previously associated with this company (personal conversation with Dr Bonn, anonymous source, 2003) that there are approximately 1,095,000 annual visitors to Silver Springs with about 70 percent ... The springs issue vertically from a conical depression with a large spring pool with a depth of about 25 feet The water is clear and sky-blue with a large boil on the pool surface over the vent...

Ngày tải lên: 08/03/2014, 08:20

... Z ∩ ∆k+q with |Z| ∩ (∆k × ∂∆q ) = ∅ as the graph of a d-valued holomorphic map Without loss of generality we suppose that our holomorphic mapping f is defined on ∆n (a) × Ak (r1 , b) with a, b ... meromorphically onto U × ∆? ˆ This is the so-called Hartogs-type extension problem If U = ∆n for any f with values in our X and any initial (nonempty!) U then one says that the Hartogs-type extension theorem ... this paper is to initiate the systematic study of extension properties of meromorphic mappings with values in non-K¨hler complex manifolds a Let h be some Hermitian metric on a complex manifold...

Ngày tải lên: 22/03/2014, 16:20

... a consulting systems engineer within Cisco for the Cisco NAC Appliance product Sheldon came over to Cisco with the acquisition of Perfigo in November 2004 where, with Perfigo, he was solely responsible ... complies with corporate software policies, that PC can be placed in an employee role with full network access If a guest user joins the network, that guest user is placed in the guest role with only ... without written permission from the publisher, except for the inclusion of brief quotations in a review Library of Congress Cataloging-in-Publication Data Heary, Jamey Cisco NAC appliance : enforcing...

Ngày tải lên: 25/03/2014, 11:09

Ngày tải lên: 30/03/2014, 01:20

... is, any list of reflected larcs sharing an origin) fails to intersect with the larc list of every extremity group (that is, with each list of reflected larcs sharing an extremity) Such an illformed ... stocked with lares reflecting all of the final larcs The dummy candidate.a-arc can then be processed as usual When its origin has been connected to the automaton, it becomes the final.anode, with ... This procedure insures that the sibling's origin will eventually connect with the epsilon a-arc's extremity Splittee a-arcs with epsilon labels are placed at the top of the list pushed onto *candidate.a-ares*...

Ngày tải lên: 31/03/2014, 04:20

... patients with less severe disease [21], compared with the EQ-5D in this study, which contrasts with the lower reported root mean square error for predicted versus observed SF-6D values than EQ-5D values ... SF-6D values overestimated baseline values and underestimated improvement in patients with active disease by approximately 60-70% Similarly, the difference between observed and predicted values ... and EQ-5D/SF-6D within our three cohorts As expected [19] we found that predicted utility scores have smaller variance than observed values This is because mapped values lack the within person...

Ngày tải lên: 18/06/2014, 19:20

... 0.0562 higher utility Respondents with type diabetes reported 0.0629 higher utility than respondents with type with diabetes Each insulin unit per day was associated with 0.0008 lower utility Table ... certificates and UK respondents without diabetes were paid £20 Excluded were persons who were unable to communicate in English Respondents with diabetes had to be: diagnosed with type or type diabetes; ... others with me or checking on me during the day or night Model (FLogit GLM) [23] A random effects model, which took into account within-respondent variation, was also considered However, as the within-respondent...

Ngày tải lên: 18/06/2014, 19:20

... been used to measure the HRQoL of patients with diabetes, there is a need for generic HRQoL measures as well, to allow comparisons with populations without diabetes In particular, such measures ... measures can be used to compare the incremental burden experienced by patients with diabetes and those without diabetes but with similar comorbidities and risk factors A frequently used generic HRQoL ... Respondents with 0–2 risk factors were classified as low risk and those with 3–5 risk factors were grouped as high risk for a diagnosis of diabetes This paper will focus on respondents with type...

Ngày tải lên: 18/06/2014, 22:20