sqlclr

问题 SQL Server allows you to create CLR functions, stored procedures, user types and other objects, for purpose that are really complex to be done inside SQL. But, can someone compare those two things: TSQL Object and CLR Object, in sense of performance, benefits, and so on. What are real situations for usage CLR objects? Is there any best practices proposition for their usage? 回答1: What are real situations for usage CLR objects? SQL Server lacks an aggregate string concatenation function. This

问题 I have dived into researching the SQL CLR. Unfortunately, my first example has problem with transparent code call to security code . The point is my SQL CLR Trigger is treated as transparent code. And in trigger, I use Quartz to call to Quartz Windows service : var properties = new NameValueCollection(); properties["quartz.scheduler.instanceName"] = "ServerScheduler"; properties["quartz.scheduler.proxy"] = "true"; properties["quartz.scheduler.proxy.address"] = string.Format("tcp://{0}:{1}/{2}

问题 We have a third-party DLL that can operate on a DataTable of source information and generate some useful values, and we're trying to hook it up through SQLCLR to be callable as a table-valued UDF in SQL Server 2008. Taking the concept here one step further, I would like to program a CLR Table-Valued Function that operates on a table of source data from the DB. I'm pretty sure I understand what needs to happen on the T-SQL side of things; but, what should the method signature look like in the

问题 How do you write a stored procedure using C# in SQLCLR? Currently I am using SQL Server Management Studio and I write stored procedures using T-SQL such as create proc sp_item as .... . 回答1: See: Building my first SQL CLR stored procedure CLR Assembly RegEx Functions for SQL Server by Example Choosing between CLR and T-SQL stored procedures: a simple benchmark Basically, there are Visual Studio templates which allow you to get started with SQL CLR projects. Fill in the blanks, write your

问题 I have created a CLR which uses the newtonsoft json parser. I need to deploy the CLR . I have created an assembly for the parser dependency: CREATE ASSEMBLY [Newtonsoft.Json] FROM 'C:\share\Release\Newtonsoft.Json.dll' WITH PERMISSION_SET = UNSAFE The above statement throws an error: `Assembly 'Newtonsoft.Json' references assembly 'system.runtime.serialization, version=3.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089.', which is not present in the current database. SQL Server

问题 I'm working to update a stored procedure that current selects up to n rows, if the rows returned = n, does a select count without the limit, and then returns the original select and the total impacted rows. Kinda like: SELECT TOP (@rowsToReturn) A.data1, A.data2 FROM mytable A SET @maxRows = @@ROWCOUNT IF @rowsToReturn = @@ROWCOUNT BEGIN SET @maxRows = (SELECT COUNT(1) FROM mytableA) END I'm wanting reduce this to a single select statement. Based on this question, COUNT(*) OVER() allows this,

问题 I'm working to update a stored procedure that current selects up to n rows, if the rows returned = n, does a select count without the limit, and then returns the original select and the total impacted rows. Kinda like: SELECT TOP (@rowsToReturn) A.data1, A.data2 FROM mytable A SET @maxRows = @@ROWCOUNT IF @rowsToReturn = @@ROWCOUNT BEGIN SET @maxRows = (SELECT COUNT(1) FROM mytableA) END I'm wanting reduce this to a single select statement. Based on this question, COUNT(*) OVER() allows this,

问题 My current view is no, prefer Transact SQL stored procedures because they are a lighter weight and (possibly) higher performing option, while CLR procedures allow developers to get up to all sorts of mischief. However recently I have needed to debug some very poorly written TSQL stored procs. As usual I found many of the problems due to the original developer developer having no real TSQL experience, they were ASP.NET / C# focused. So, using CLR procedures would firstly provide a much more

问题 Is it possible for a SQL CLR User-Defined Function to return the data type varbinary(MAX)? In the documentation it mentions: "The input parameters and the type returned from a scalar-valued function can be any of the scalar data types supported by SQL Server, except rowversion, text, ntext, image, timestamp, table, or cursor." - they don't mention varbinary, but I'm not sure... I have some byte-array data from the .NET side that I need to return to SQL Server from the CLR, and I'm trying to

问题 I am trying to call an external webservice in visual studio but I am getting the error. System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. System.Security.SecurityException: at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) at System.Security.CodeAccessPermission.Demand() at System