Assign Permissions to a Role for a Stored Procedure in .NET

Printer PDF417 in .NET Assign Permissions to a Role for a Stored Procedure

Assign Permissions to a Role for a Stored Procedure
Draw PDF417 In .NET Framework
Using Barcode drawer for VS .NET Control to generate, create PDF-417 2d barcode image in .NET applications.
www.OnBarcode.com
Decoding PDF-417 2d Barcode In Visual Studio .NET
Using Barcode reader for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
As with all objects and operations in SQL Server, you must explicitly grant a user permission to use an object or execute an operation. To allow users to execute a stored procedure, you use the following general syntax:
Painting Bar Code In VS .NET
Using Barcode generator for .NET Control to generate, create bar code image in .NET applications.
www.OnBarcode.com
Reading Barcode In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
GRANT EXECUTE ON <stored procedure> TO <database principle>
Print PDF 417 In Visual C#
Using Barcode drawer for .NET framework Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
PDF417 Drawer In Visual Studio .NET
Using Barcode creation for ASP.NET Control to generate, create PDF-417 2d barcode image in ASP.NET applications.
www.OnBarcode.com
2, Configuring SQL Server 2005, covers the GRANT statement and database principles. The use of permissions with stored procedures is an interesting security mechanism. Any user granted execute permissions on a stored procedure is automatically delegated permissions to the objects and commands referenced inside the stored procedure based on the permission set of the user who created the stored procedure. To understand this delegation behavior, consider the previous example code. The stored procedure dbo.uspLogError inserts rows into the dbo.ErrorLog table. UserA has insert permissions on dbo.ErrorLog and also created this stored procedure. UserB does not have any permissions on dbo.ErrorLog. However, when UserA grants EXECUTE permissions on the dbo.uspLogError procedure, UserB can execute this procedure without receiving any errors because the SELECT and INSERT permissions necessary to add the row to the dbo.ErrorLog table are delegated to UserB. However, UserB receives those permissions only when executing the stored procedure and still cannot directly access the dbo.ErrorLog table. The permission delegation possible with stored procedures provides a very powerful security mechanism within SQL Server. If all data access insertions, deletions, updates, or selects were performed through stored procedures, users could not directly access any table in the database. Only by executing the stored procedures would users be able to perform the actions necessary to manage the database. And although users would have the permissions delegated through the stored procedures,
PDF 417 Encoder In Visual Basic .NET
Using Barcode printer for .NET framework Control to generate, create PDF417 image in Visual Studio .NET applications.
www.OnBarcode.com
Make Universal Product Code Version A In Visual Studio .NET
Using Barcode encoder for .NET Control to generate, create GTIN - 12 image in Visual Studio .NET applications.
www.OnBarcode.com
9
Drawing Matrix Barcode In .NET
Using Barcode generator for .NET Control to generate, create Matrix 2D Barcode image in .NET framework applications.
www.OnBarcode.com
Barcode Maker In VS .NET
Using Barcode creation for .NET Control to generate, create barcode image in VS .NET applications.
www.OnBarcode.com
Creating Functions, Stored Procedures, and Triggers
EAN / UCC - 14 Encoder In .NET
Using Barcode creator for VS .NET Control to generate, create USS-128 image in .NET applications.
www.OnBarcode.com
USPS PLANET Barcode Creator In VS .NET
Using Barcode creator for VS .NET Control to generate, create USPS PLANET Barcode image in .NET framework applications.
www.OnBarcode.com
they would still be bound to the code within the stored procedure, which can perform actions such as the following:
EAN-13 Supplement 5 Creator In None
Using Barcode generator for Online Control to generate, create GS1 - 13 image in Online applications.
www.OnBarcode.com
Generating UPC-A Supplement 2 In Java
Using Barcode creator for Java Control to generate, create UPC Symbol image in Java applications.
www.OnBarcode.com
Allowing certain operations to be performed only by users who are on a specified list, which is maintained in another table by a user functioning in an administrative role Validating input parameters to prevent security attacks such as SQL injection.
GS1 - 13 Drawer In Java
Using Barcode encoder for BIRT reports Control to generate, create European Article Number 13 image in Eclipse BIRT applications.
www.OnBarcode.com
EAN-13 Recognizer In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Quick Check
Creating Data Matrix ECC200 In .NET
Using Barcode generator for Reporting Service Control to generate, create Data Matrix image in Reporting Service applications.
www.OnBarcode.com
Code 128 Code Set A Scanner In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
1. What is a stored procedure 2. Which operations can a stored procedure perform
Code 39 Full ASCII Decoder In Visual C#
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Generate UCC-128 In Visual C#
Using Barcode generator for .NET Control to generate, create UCC - 12 image in VS .NET applications.
www.OnBarcode.com
Quick Check Answers
1. A stored procedure is a name for a batch of Transact-SQL or CLR code that is stored within SQL Server. 2. A procedure can execute any commands within the Transact-SQL language except USE, SET SHOWPLAN_TEXT ON, and SET SHOWPLAN_ALL ON.
PRACTICE
Create a Stored Procedure
In this practice, you create two stored procedures that will update the hire date for all employees to today s date and then compare the procedures. 1. If necessary, launch SSMS, connect to your instance, open a new query window, and change the context to the AdventureWorks database. 2. Create a stored procedure to update the hire date by executing the following code:
CREATE PROCEDURE dbo.usp_UpdateEmployeeHireDateInefficiently AS DECLARE @EmployeeID int DECLARE curemp CURSOR FOR SELECT EmployeeID FROM HumanResources.Employee OPEN curemp FETCH curemp INTO @EmployeeID WHILE @@FETCH_STATUS = 0 BEGIN UPDATE HumanResources.Employee SET HireDate = GETDATE() WHERE EmployeeID = @EmployeeID
Lesson 2: Implementing Stored Procedures
FETCH curemp INTO @EmployeeID END CLOSE curemp DEALLOCATE curemp
3. Create a second stored procedure to update the hire date by executing the following code:
CREATE PROCEDURE dbo.usp_UpdateEmployeeHireDateEfficiently AS DECLARE @now DATETIME SET @now = GETDATE() UPDATE HumanResources.Employee SET HireDate = @now
4. Compare the execution between the two procedures by executing each of the queries in the following code separately:
EXEC dbo.usp_UpdateEmployeeHireDateInefficiently EXEC dbo.usp_UpdateEmployeeHireDateEfficiently
BEST PRACTICES
Code efficiency
Databases are built and optimized for set-oriented processes instead of row-at-a-time processes. When constructing stored procedures, you always want to use the minimum amount of code that also minimizes the amount of work performed. Although both of the procedures in this practice accomplish the requirement to change all employees hire dates, the second procedure executes significantly faster. The first procedure not only reads in the entire list of employees, but it also executes an update as well as a call to a function for each employee. The second procedure executes the GETDATE() function only once and performs a single update operation.
Copyright © OnBarcode.com . All rights reserved.