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RedGate.SQLCompare.Engine | Send comments on this topic. |
| RedGate.SQLCompare.Engine Namespace : Work Class |
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RedGate.SQLCompare.Engine | Send comments on this topic. |
| RedGate.SQLCompare.Engine Namespace : Work Class |
Used to calculate the work to be done to synchronize databases.
For a list of all members of this type, see Work members.
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System.Object
RedGate.SQLCompare.Engine.Work
[Visual Basic]
Public NotInheritable Class Work
Implements ICancellable [C#]
public sealed class Work : ICancellable [C++]
public __gc __sealed class Work : public ICancellable [C++/CLI]
public ref class Work sealed : public ICancellable The Work class is used to convert a set of Differences into an ExecutionBlock containing SQL script, which can be used to synchronize two databases. It also provides Warnings and Messages about the work to be done.
ScriptObject can be used to generate scripts for individual database objects.
Note that you should not re-use a Work object; you should re-create a new object every time.
This example shows how to compare and synchronize two databases.
[C#]
Database db1=new Database();
Database db2=new Database();
db1.Register(new ConnectionProperties(".", "WidgetStaging"), Options.Default);
db2.Register(new ConnectionProperties(".", "WidgetProduction"), Options.Default);
Differences differences=db1.CompareWith(db2, Options.Default);
foreach (Difference difference in differences)
{
//make sure the difference is selected so it is included in the synchronization
difference.Selected=true;
}
Work work=new Work();
//calculate the work to do using sensible default options
//the script is to be run on WidgetProduction so the runOnTwo parameter is true
work.BuildFromDifferences(differences, Options.Default, true);
//we can now access the messages and warnings
Console.WriteLine("Messages:");
foreach (Message message in work.Messages)
{
Console.WriteLine(message.Text);
}
Console.WriteLine("Warnings:");
foreach (Message message in work.Warnings)
{
Console.WriteLine(message.Text);
}
//print out the SQL used to synchronize
ExecutionBlock block=work.ExecutionBlock;
Console.WriteLine("SQL to synchronize:");
Console.WriteLine(block.GetString());
//and run the SQL
RedGate.SQL.Shared.BlockExecutor executor=new RedGate.SQL.Shared.BlockExecutor();
executor.ExecuteBlock(block, ".", "WidgetProduction");
//dispose of the objects
block.Dispose();
db1.Dispose();
db2.Dispose();
[Visual Basic]
Dim db1 As Database = New Database()
Dim db2 As Database = New Database()
db1.Register(New ConnectionProperties(".", "WidgetStaging"), Options.Default)
db2.Register(New ConnectionProperties(".", "WidgetProduction"), Options.Default)
Dim differences As Differences = db1.CompareWith(db2, Options.Default)
Dim difference As Difference
For Each difference In differences
'make sure the difference is selected so it is included in the synchronization
difference.Selected = True
Next
Dim work As Work = New Work()
'calculate the work to do using sensible default options
'the script is to be run on WidgetProduction so the runOnTwo parameter is true
work.BuildFromDifferences(differences, Options.Default, True)
'we can now access the messages and warnings
Console.WriteLine("Messages:")
Dim message As Message
For Each message In work.Messages
Console.WriteLine(message.Text)
Next
Console.WriteLine("Warnings:")
For Each message In work.Warnings
Console.WriteLine(message.Text)
Next
'print out the SQL used to synchronize
Dim block As ExecutionBlock = work.ExecutionBlock
Console.WriteLine("SQL to synchronize:")
Console.WriteLine(block.GetString())
'and run the SQL
Dim executor As BlockExecutor = New BlockExecutor
executor.ExecuteBlock(block, ".", "WidgetProduction")
'dispose of the objects
block.Dispose()
db1.Dispose()
db2.Dispose()
Namespace: RedGate.SQLCompare.Engine
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
Assembly: RedGate.SQLCompare.Engine (in RedGate.SQLCompare.Engine.dll)
Work Members | RedGate.SQLCompare.Engine Namespace
© 2003 - 2007 Red Gate Software Ltd. All Rights Reserved.