Classe MergeJoinFilter
Represents a join filter or logical record relationship between to merge articles.
Namespace: Microsoft.SqlServer.Replication
Assembly: Microsoft.SqlServer.Rmo (em Microsoft.SqlServer.Rmo.dll)
Sintaxe
'Declaração
Public NotInheritable Class MergeJoinFilter
'Uso
Dim instance As MergeJoinFilter
public sealed class MergeJoinFilter
public ref class MergeJoinFilter sealed
[<SealedAttribute>]
type MergeJoinFilter = class end
public final class MergeJoinFilter
Comentários
This namespace, class, or member is supported only in version 2.0 of the Microsoft .NET Framework.
Thread Safety
Any public static (Shared in Microsoft Visual Basic) members of this type are safe for multithreaded operations. Any instance members are not guaranteed to be thread safe.
Exemplos
// Define the Publisher and publication names.
string publisherName = publisherInstance;
string publicationName = "AdvWorksSalesOrdersMerge";
string publicationDbName = "AdventureWorks";
// Specify article names.
string articleName1 = "Employee";
string articleName2 = "SalesOrderHeader";
string articleName3 = "SalesOrderDetail";
// Specify join filter information.
string filterName12 = "SalesOrderHeader_Employee";
string filterClause12 = "Employee.EmployeeID = " +
"SalesOrderHeader.SalesPersonID";
string filterName23 = "SalesOrderDetail_SalesOrderHeader";
string filterClause23 = "SalesOrderHeader.SalesOrderID = " +
"SalesOrderDetail.SalesOrderID";
string salesSchema = "Sales";
string hrSchema = "HumanResources";
MergeArticle article1 = new MergeArticle();
MergeArticle article2 = new MergeArticle();
MergeArticle article3 = new MergeArticle();
MergeJoinFilter filter12 = new MergeJoinFilter();
MergeJoinFilter filter23 = new MergeJoinFilter();
// Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);
// Create three merge articles that are horizontally partitioned
// using a parameterized row filter on Employee.EmployeeID, which is
// extended to the two other articles using join filters.
try
{
// Connect to the Publisher.
conn.Connect();
// Create each article.
// For clarity, each article is defined separately.
// In practice, iterative structures and arrays should
// be used to efficiently create multiple articles.
// Set the required properties for the Employee article.
article1.ConnectionContext = conn;
article1.Name = articleName1;
article1.DatabaseName = publicationDbName;
article1.SourceObjectName = articleName1;
article1.SourceObjectOwner = hrSchema;
article1.PublicationName = publicationName;
article1.Type = ArticleOptions.TableBased;
// Define the parameterized filter clause based on Hostname.
article1.FilterClause = "Employee.LoginID = HOST_NAME()";
// Set the required properties for the SalesOrderHeader article.
article2.ConnectionContext = conn;
article2.Name = articleName2;
article2.DatabaseName = publicationDbName;
article2.SourceObjectName = articleName2;
article2.SourceObjectOwner = salesSchema;
article2.PublicationName = publicationName;
article2.Type = ArticleOptions.TableBased;
// Set the required properties for the SalesOrderDetail article.
article3.ConnectionContext = conn;
article3.Name = articleName3;
article3.DatabaseName = publicationDbName;
article3.SourceObjectName = articleName3;
article3.SourceObjectOwner = salesSchema;
article3.PublicationName = publicationName;
article3.Type = ArticleOptions.TableBased;
if (!article1.IsExistingObject) article1.Create();
if (!article2.IsExistingObject) article2.Create();
if (!article3.IsExistingObject) article3.Create();
// Select published columns for SalesOrderHeader.
// Create an array of column names to vertically filter out.
// In this example, only one column is removed.
String[] columns = new String[1];
columns[0] = "CreditCardApprovalCode";
// Remove the column.
article2.RemoveReplicatedColumns(columns);
// Define a merge filter clauses that filter
// SalesOrderHeader based on Employee and
// SalesOrderDetail based on SalesOrderHeader.
// Parent article.
filter12.JoinArticleName = articleName1;
// Child article.
filter12.ArticleName = articleName2;
filter12.FilterName = filterName12;
filter12.JoinUniqueKey = true;
filter12.FilterTypes = FilterTypes.JoinFilter;
filter12.JoinFilterClause = filterClause12;
// Add the join filter to the child article.
article2.AddMergeJoinFilter(filter12);
// Parent article.
filter23.JoinArticleName = articleName2;
// Child article.
filter23.ArticleName = articleName3;
filter23.FilterName = filterName23;
filter23.JoinUniqueKey = true;
filter23.FilterTypes = FilterTypes.JoinFilter;
filter23.JoinFilterClause = filterClause23;
// Add the join filter to the child article.
article3.AddMergeJoinFilter(filter23);
}
catch (Exception ex)
{
// Do error handling here and rollback the transaction.
throw new ApplicationException(
"The filtered articles could not be created", ex);
}
finally
{
conn.Disconnect();
}
' Define the Publisher and publication names.
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks"
' Specify article names.
Dim articleName1 As String = "Employee"
Dim articleName2 As String = "SalesOrderHeader"
Dim articleName3 As String = "SalesOrderDetail"
' Specify join filter information.
Dim filterName12 As String = "SalesOrderHeader_Employee"
Dim filterClause12 As String = "Employee.EmployeeID = " + _
"SalesOrderHeader.SalesPersonID"
Dim filterName23 As String = "SalesOrderDetail_SalesOrderHeader"
Dim filterClause23 As String = "SalesOrderHeader.SalesOrderID = " + _
"SalesOrderDetail.SalesOrderID"
Dim salesSchema As String = "Sales"
Dim hrSchema As String = "HumanResources"
Dim article1 As MergeArticle = New MergeArticle()
Dim article2 As MergeArticle = New MergeArticle()
Dim article3 As MergeArticle = New MergeArticle()
Dim filter12 As MergeJoinFilter = New MergeJoinFilter()
Dim filter23 As MergeJoinFilter = New MergeJoinFilter()
' Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)
' Create three merge articles that are horizontally partitioned
' using a parameterized row filter on Employee.EmployeeID, which is
' extended to the two other articles using join filters.
Try
' Connect to the Publisher.
conn.Connect()
' Create each article.
' For clarity, each article is defined separately.
' In practice, iterative structures and arrays should
' be used to efficiently create multiple articles.
' Set the required properties for the Employee article.
article1.ConnectionContext = conn
article1.Name = articleName1
article1.DatabaseName = publicationDbName
article1.SourceObjectName = articleName1
article1.SourceObjectOwner = hrSchema
article1.PublicationName = publicationName
article1.Type = ArticleOptions.TableBased
' Define the parameterized filter clause based on Hostname.
article1.FilterClause = "Employee.LoginID = HOST_NAME()"
' Set the required properties for the SalesOrderHeader article.
article2.ConnectionContext = conn
article2.Name = articleName2
article2.DatabaseName = publicationDbName
article2.SourceObjectName = articleName2
article2.SourceObjectOwner = salesSchema
article2.PublicationName = publicationName
article2.Type = ArticleOptions.TableBased
' Set the required properties for the SalesOrderDetail article.
article3.ConnectionContext = conn
article3.Name = articleName3
article3.DatabaseName = publicationDbName
article3.SourceObjectName = articleName3
article3.SourceObjectOwner = salesSchema
article3.PublicationName = publicationName
article3.Type = ArticleOptions.TableBased
' Create the articles, if they do not already exist.
If article1.IsExistingObject = False Then
article1.Create()
End If
If article2.IsExistingObject = False Then
article2.Create()
End If
If article3.IsExistingObject = False Then
article3.Create()
End If
' Select published columns for SalesOrderHeader.
' Create an array of column names to vertically filter out.
' In this example, only one column is removed.
Dim columns() As String = New String(0) {}
columns(0) = "CreditCardApprovalCode"
' Remove the column.
article2.RemoveReplicatedColumns(columns)
' Define a merge filter clauses that filter
' SalesOrderHeader based on Employee and
' SalesOrderDetail based on SalesOrderHeader.
' Parent article.
filter12.JoinArticleName = articleName1
' Child article.
filter12.ArticleName = articleName2
filter12.FilterName = filterName12
filter12.JoinUniqueKey = True
filter12.FilterTypes = FilterTypes.JoinFilter
filter12.JoinFilterClause = filterClause12
' Add the join filter to the child article.
article2.AddMergeJoinFilter(filter12)
' Parent article.
filter23.JoinArticleName = articleName2
' Child article.
filter23.ArticleName = articleName3
filter23.FilterName = filterName23
filter23.JoinUniqueKey = True
filter23.FilterTypes = FilterTypes.JoinFilter
filter23.JoinFilterClause = filterClause23
' Add the join filter to the child article.
article3.AddMergeJoinFilter(filter23)
Catch ex As Exception
' Do error handling here and rollback the transaction.
Throw New ApplicationException( _
"The filtered articles could not be created", ex)
Finally
conn.Disconnect()
End Try
Hierarquia de herança
System. . :: . .Object
Microsoft.SqlServer.Replication..::..MergeJoinFilter
Segurança de thread
Quaisquer membros static (Shared no Visual Basic) públicos deste tipo são thread-safe. Não há garantia de que qualquer membro de instância seja thread-safe.
Consulte também