SQL Server 2000 Stored Procedure & XML Programming in .NET

Generating Data Matrix 2d barcode in .NET SQL Server 2000 Stored Procedure & XML Programming

SQL Server 2000 Stored Procedure & XML Programming
Decode Data Matrix ECC200 In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications.
ECC200 Maker In Visual Studio .NET
Using Barcode printer for .NET Control to generate, create Data Matrix image in .NET framework applications.
</diffgr:diffgram> </Root>
DataMatrix Decoder In .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
Bar Code Generator In .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create bar code image in Visual Studio .NET applications.
Again, you must use a schema that contains the sql:identity="useValue" annotation for an identity field.
Barcode Reader In Visual Studio .NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET applications.
DataMatrix Encoder In Visual C#
Using Barcode creation for Visual Studio .NET Control to generate, create Data Matrix image in Visual Studio .NET applications.
Processing Multiple Records Using DiffGrams
Make Data Matrix In Visual Studio .NET
Using Barcode creation for ASP.NET Control to generate, create Data Matrix ECC200 image in ASP.NET applications.
Data Matrix ECC200 Creator In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Data Matrix ECC200 image in Visual Studio .NET applications.
DiffGrams may process multiple records at the same time. In the case of updates, it is essential to link records in both the DataSetName and the diffgr:before block using the diffgr:id attribute. A data set could contain records from more than one base table. If a DataSet object is used to generate a DiffGram, it will group records by table. In this case, you typically need to use a mapping schema as well. You need to reference the schema using the sql:mapping-schema attribute in the root element of the DiffGram. The order of modification operations is often very important for successful completion. A standard example is the deletion of records in two tables linked by a foreign key. In that case, you must use the diffgr:parentID attribute in the child element and the diffgr:id attribute in the parent record (the data set). This attribute must be used in the diffgr:before block. The DiffGram must also point to the XSD schema with a sql:relationship annotation. Such DiffGrams will not follow the order of records in the document, but rather the order dictated by diffgr:parentID attribute.
Creating Barcode In .NET
Using Barcode creation for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
UPC - 13 Creator In VS .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create EAN13 image in VS .NET applications.
DiffGrams Behind the Scene
Bar Code Creation In .NET
Using Barcode creation for VS .NET Control to generate, create barcode image in Visual Studio .NET applications.
Generating USD - 8 In .NET Framework
Using Barcode encoder for .NET framework Control to generate, create Code 11 image in Visual Studio .NET applications.
All changes in a DiffGram will become part of a single transaction. If any of them fail or if any of them do not modify a single record, the transaction will be rolled back. You can use SQL Server Profiler to display the Transact-SQL batch generated for a DiffGram. The following batch was created to insert three records into the InventoryBulkLoad table:
Encode EAN / UCC - 13 In Visual Basic .NET
Using Barcode creator for .NET Control to generate, create EAN 13 image in VS .NET applications.
GS1 - 13 Recognizer In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
SET XACT_ABORT ON BEGIN TRAN DECLARE @eip INT, @r__ int, @e__ int SET @eip = 0 INSERT InventoryBulkLoad (EquipmentId, LocationId, StatusId, LeaseId, LeaseScheduleId, OwnerId, Rent, Lease, Cost, AcquisitionTypeID)
Encode 1D In Visual Basic .NET
Using Barcode generation for .NET Control to generate, create Linear Barcode image in Visual Studio .NET applications.
USS Code 39 Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
15: Modifying Databases Using SQLXML
Make Barcode In Java
Using Barcode printer for Java Control to generate, create barcode image in Java applications.
Encode Code 128 Code Set A In Java
Using Barcode creator for Java Control to generate, create Code 128 Code Set B image in Java applications.
VALUES (246, 14, 4, 8, 185, 161, NULL, 2209, NULL, 2); SELECT @e__ = @@ERROR, @r__ = @@ROWCOUNT IF (@e__ != 0 OR @r__ != 1) SET @eip = 1 INSERT InventoryBulkLoad (EquipmentId, LocationId, StatusId, LeaseId, LeaseScheduleId, OwnerId, Rent, Lease, Cost, AcquisitionTypeID) VALUES (126, 14, 4, 8, 185, 160, NULL, 1200, NULL, 2); SELECT @e__ = @@ERROR, @r__ = @@ROWCOUNT IF (@e__ != 0 OR @r__ != 1) SET @eip = 1 INSERT InventoryBulkLoad (EquipmentId, LocationId, StatusId, LeaseId, LeaseScheduleId, OwnerId, Rent, Lease, Cost, AcquisitionTypeID) VALUES (286, 14, 4, 8, 185, 151, NULL, 2500, NULL, 2); SELECT @e__ = @@ERROR, @r__ = @@ROWCOUNT IF (@e__ != 0 OR @r__ != 1) SET @eip = 1 IF (@eip != 0) ROLLBACK ELSE COMMIT SET XACT_ABORT OFF
Scan Bar Code In VB.NET
Using Barcode Control SDK for VS .NET Control to generate, create, read, scan barcode image in .NET applications.
Making Matrix Barcode In Visual C#.NET
Using Barcode creator for .NET framework Control to generate, create Matrix Barcode image in .NET applications.
Unfortunately, SQL Server will not roll back the transaction and finish processing as soon as an error occurs, but will do so only when all modification statements have been executed. The following batch was created for an update DiffGram:
SET XACT_ABORT ON BEGIN TRAN DECLARE @eip INT, @r__ int, @e__ int SET @eip = 0 UPDATE InventoryBulkLoad SET StatusId=2, Rent=NULL, Cost=NULL WHERE ( InventoryId=3 ) AND ( EquipmentId=246 ) AND ( LocationId=14 ) AND ( StatusId=4 ) AND ( LeaseId=8 ) AND ( LeaseScheduleId=185 ) AND ( OwnerId=161 ) AND ( Rent IS NULL ) AND ( Lease=2209 ) AND ( Cost IS NULL ) AND ( AcquisitionTypeID=2 ) ; SELECT @e__ = @@ERROR, @r__ = @@ROWCOUNT IF (@e__ != 0 OR @r__ != 1) SET @eip = 1 IF (@r__ > 1) RAISERROR ( N'SQLOLEDB Error Description:' + 'Ambiguous update, unique identifier required Transaction aborted ', 16, 1) ELSE IF (@r__ < 1) RAISERROR ( N'SQLOLEDB Error Description: ' + 'Empty update, no updatable rows found Transaction aborted ', 16, 1) IF (@eip != 0) ROLLBACK ELSE COMMIT SET XACT_ABORT OFF
SQL Server 2000 Stored Procedure & XML Programming
Note how the Update statement includes a Where clause to verify that all column values are unchanged. The batch will also verify that exactly one record was updated and raise an error if that is not the case.
Copyright © OnBarcode.com . All rights reserved.