Stored Procedures in Visual Studio .NET

Creation QR Code in Visual Studio .NET Stored Procedures

3 Stored Procedures
Create QR Code ISO/IEC18004 In VS .NET
Using Barcode generator for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
www.OnBarcode.com
Generate Bar Code In VS .NET
Using Barcode generation for ASP.NET Control to generate, create bar code image in ASP.NET applications.
www.OnBarcode.com
To determine whether both plan guides are used for our query template, run the following code:
Making QR Code 2d Barcode In Visual C#
Using Barcode generation for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in VS .NET applications.
www.OnBarcode.com
Quick Response Code Drawer In VS .NET
Using Barcode creator for VS .NET Control to generate, create QR Code image in .NET framework applications.
www.OnBarcode.com
SET SHOWPLAN_XML ON; GO SELECT orderid, custid, empid, orderdate FROM Sales.Orders WHERE orderdate >= '20060101'; GO SET SHOWPLAN_XML OFF;
QR Code JIS X 0510 Printer In VB.NET
Using Barcode maker for Visual Studio .NET Control to generate, create QR Code image in .NET applications.
www.OnBarcode.com
Making Linear Barcode In .NET
Using Barcode encoder for ASP.NET Control to generate, create Linear 1D Barcode image in ASP.NET applications.
www.OnBarcode.com
You should find the following attributes in the XML plan: TemplatePlanGuideDB= Inside TSQL2008 , TemplatePlanGuideName= PG_MyQuery2_ParameterizationForced , and PlanGuideDB= InsideTSQL2008 PlanGuideName= PG_MyQuery2_Selective . Run the following query to request information about the plan guides:
Paint ANSI/AIM Code 128 In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create Code 128 Code Set A image in ASP.NET applications.
www.OnBarcode.com
Generating Data Matrix 2d Barcode In VS .NET
Using Barcode creator for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
www.OnBarcode.com
SELECT * FROM sys.plan_guides WHERE name IN('PG_MyQuery2_ParameterizationForced', 'PG_MyQuery2_Selective');
Making Barcode In VS .NET
Using Barcode maker for ASP.NET Control to generate, create barcode image in ASP.NET applications.
www.OnBarcode.com
Denso QR Bar Code Creation In .NET Framework
Using Barcode drawer for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
www.OnBarcode.com
When you re done, run the following code to drop the plan guides:
UCC - 12 Printer In VS .NET
Using Barcode generation for ASP.NET Control to generate, create UCC.EAN - 128 image in ASP.NET applications.
www.OnBarcode.com
Code 93 Extended Drawer In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create USD-3 image in ASP.NET applications.
www.OnBarcode.com
EXEC sp_control_plan_guide N'DROP', N'PG_MyQuery2_ParameterizationForced'; EXEC sp_control_plan_guide N'DROP', N'PG_MyQuery2_Selective';
Create Code 39 Extended In VS .NET
Using Barcode drawer for .NET Control to generate, create Code39 image in VS .NET applications.
www.OnBarcode.com
Painting Linear Barcode In Visual C#
Using Barcode drawer for Visual Studio .NET Control to generate, create Linear 1D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Using a Fixed XML Plan
Paint European Article Number 13 In Java
Using Barcode generation for Java Control to generate, create EAN13 image in Java applications.
www.OnBarcode.com
Read GTIN - 13 In Visual C#.NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
SQL Server supports a query hint called USE PLAN that you can think of as the ultimate hint . With this hint you specify an XML value representing a complete query execution plan . SQL Server also supports creating a plan guide in which you specify an XML value representing a query execution plan as the hint . You can produce the XML form of the query plan you want in a controlled environment, and then use that XML value when creating the plan guide . As an example, run the following code to create the stored procedure GetOrders, which accepts an order date as input (@odate) and returns all orders placed on or after the input date:
Read Code 128B In C#.NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
PDF 417 Scanner In C#
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
IF OBJECT_ID('dbo.GetOrders', 'P') IS NOT NULL DROP PROC dbo.GetOrders; GO CREATE PROC dbo.GetOrders @odate AS DATETIME AS SELECT orderid, custid, empid, orderdate /* 33145F87-1109-4959-91D6-F1EC81F8428F */ FROM Sales.Orders WHERE orderdate >= @odate; GO
Bar Code Decoder In .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Bar Code Scanner In Visual Studio .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Once again, I specified a GUID in a comment to make it easy to track down the cached plan associated with this query .
Inside Microsoft SQL Server 2008: T-SQL Programming
Suppose that this procedure is usually invoked with a selective filter and you want to create a plan guide that ensures that the query uses the best plan for a selective filter . I already showed several ways to achieve this for example, by using the OPTIMIZE FOR hint . Here I ll show an example using an XML plan representation . First, run the procedure in a controlled environment, providing a selective value as input . Next, pull the XML form of the plan from cache by querying the dynamic management objects sys.dm_exec_query_stats, sys.dm_exec_sql_text, and sys.dm_exec_query_plan . Finally, create the plan guide using the sp_create_plan_guide procedure and specify the XML plan that you pulled from cache in the @hint argument . Here s the complete code to achieve this task:
EXEC dbo.GetOrders '99991231'; GO DECLARE @query_plan AS NVARCHAR(MAX); SET @query_plan = CAST( (SELECT query_plan FROM sys.dm_exec_query_stats AS QS CROSS APPLY sys.dm_exec_sql_text(QS.sql_handle) AS ST CROSS APPLY sys.dm_exec_query_plan(QS.plan_handle) AS QP WHERE SUBSTRING(ST.text, (QS.statement_start_offset/2) + 1, ((CASE statement_end_offset WHEN -1 THEN DATALENGTH(ST.text) ELSE QS.statement_end_offset END - QS.statement_start_offset)/2) + 1 ) LIKE N'%SELECT orderid, custid, empid, orderdate /* 33145F87-1109-4959-91D6-F1EC81F8428F */ FROM Sales.Orders WHERE orderdate >= @odate;%' AND ST.text NOT LIKE '%sys%') AS NVARCHAR(MAX)); EXEC sp_create_plan_guide @name = N'PG_GetOrders_Selective', @stmt = N'SELECT orderid, custid, empid, orderdate /* 33145F87-1109-4959-91D6-F1EC81F8428F */ FROM Sales.Orders WHERE orderdate >= @odate;', @type = N'OBJECT', @module_or_batch = N'dbo.GetOrders', @hints = @query_plan;
I used the GUID that I planted in the code to easily identify the plan associated with my specific query, but of course, you might not have such a GUID planted in your procedure s code . You can specify any part of the query that is sufficient to identify it uniquely . Run the following code to ensure that the plan guide is used:
SET SHOWPLAN_XML ON; GO EXEC dbo.GetOrders '20080506'; GO SET SHOWPLAN_XML OFF;
3 Stored Procedures
You should get the following attributes: PlanGuideDB= InsideTSQL2008 and PlanGuideName= PG_GetOrders_Selective . Run the following code to get information about the plan guide:
SELECT * FROM sys.plan_guides WHERE name = 'PG_GetOrders_Selective';
SQL Server provides a table-valued function called fn_validate_plan_guide that validates a plan guide . You may want to validate a plan guide after a schema change in a referenced object, for example . The function accepts a plan guide ID as input, which you can obtain from the sys.plan_guides view . If the plan guide is valid, the function returns an empty result set; otherwise, it returns the first error that it encounters . For example, the following code drops the index on the orderdate column from the Sales .Orders table and then validates the plan guide PG_GetOrders_Selective:
BEGIN TRAN DROP INDEX Sales.Orders.idx_nc_orderdate; SELECT plan_guide_id, msgnum, severity, state, message FROM sys.plan_guides CROSS APPLY fn_validate_plan_guide(plan_guide_id) WHERE name = 'PG_GetOrders_Selective'; ROLLBACK TRAN
Because the plan guide is invalid after the index is dropped you get the following output indicating the error:
plan_guide_id msgnum severity state ------------- ------- -------- -----65544 8712 16 0 message ----------------------------------------------------------------------Index 'InsideTSQL2008.Sales.Orders.idx_nc_orderdate', specified in the USE PLAN hint, does not exist. Specify an existing index, or create an index with the specified name.
When you re done, run the following code to drop the plan guide:
EXEC sp_control_plan_guide N'DROP', N'PG_GetOrders_Selective';
Copyright © OnBarcode.com . All rights reserved.