sql-server

问题 I have the following code that uses SqlDependency to monitor changes in one of my databases It works great, except every run it generates its own Queue/Service/Route with a guid in the database: Class: class SqlWatcher { private string connectionString; private string sqlQueue; private string listenerQuery; private SqlDependency dependency; public SqlWatcher(string connectionString, string sqlQueue, string listenerQuery) { this.connectionString = connectionString; this.sqlQueue = sqlQueue;

问题 How can I execute the results of my select query. The query below gives me some SQL statements back as result. I want to execute does statements, how to do this? All this is executed in SQL Sever Management Studio. Query: SELECT 'UPDATE Rolecopy SET PartofFT = ''' + R2.PlayedbyOT + ''', OriginalOT = ''' + R.PlayedbyOT + ''' WHERE RoleNo = ' + CAST(R.RoleNo AS VARCHAR) + CHAR(13) FROM Role R INNER JOIN Role R2 ON R.PartofFT = R2.PartofFT AND R.RoleNo <> R2.RoleNo WHERE EXISTS ( SELECT PG

问题 I have a query like: DECLARE @tmpValue SET @tmpValue = 0 -- it will be change SELECT * FROM Animal WHERE AniActive = 1 UNION IF @tmpValue > 0 SELECT * FROM Animal WHERE.Active = 0 When I use like this it is giving error because of if condition. I have to use UNION because of our structure. How can I use it with if condition? Thanks, John 回答1: Move the condition @tmpValue > 0 to the WHERE clause like so: SELECT * FROM Animal WHERE AniActive = 1 UNION SELECT * FROM Animal WHERE @tmpValue > 0

问题 I have a query like: DECLARE @tmpValue SET @tmpValue = 0 -- it will be change SELECT * FROM Animal WHERE AniActive = 1 UNION IF @tmpValue > 0 SELECT * FROM Animal WHERE.Active = 0 When I use like this it is giving error because of if condition. I have to use UNION because of our structure. How can I use it with if condition? Thanks, John 回答1: Move the condition @tmpValue > 0 to the WHERE clause like so: SELECT * FROM Animal WHERE AniActive = 1 UNION SELECT * FROM Animal WHERE @tmpValue > 0

问题 I have a query like: DECLARE @tmpValue SET @tmpValue = 0 -- it will be change SELECT * FROM Animal WHERE AniActive = 1 UNION IF @tmpValue > 0 SELECT * FROM Animal WHERE.Active = 0 When I use like this it is giving error because of if condition. I have to use UNION because of our structure. How can I use it with if condition? Thanks, John 回答1: Move the condition @tmpValue > 0 to the WHERE clause like so: SELECT * FROM Animal WHERE AniActive = 1 UNION SELECT * FROM Animal WHERE @tmpValue > 0

问题 I have a few SSIS packages that are deployed to a SQL 2005 Server and are subsequently designed and maintained in Visual Studio 2003. When I open any of the BIDS projects, followed by one of the packages, the designer always validates every Data Flow and Task object. Usually, this isn't a problem. However, under certain circumstances a system account that we use for connecting and export data from an AS400 will not validate properly. Since I'm exporting a TON of tables, each Data Flow object

问题 I am trying to connect an SQL server from an Ubuntu machine, everythings works great except for named instances: this works 'data' => array( 'driver' => 'sqlsrv', 'host' => 'xxxx', 'port' => 1433, 'database' => 'db', 'username' => 'user', 'password' => 'pwd', 'prefix' => '', ), this doesn't 'data' => array( 'driver' => 'sqlsrv', 'host' => 'yyyy\NAMEDINSTANCE', 'port' => 1433, 'database' => 'db', 'username' => 'user', 'password' => 'pwd', 'prefix' => '', ), I always end up with this error:

问题 The highlights in the image below shows the logic I want to implement. I realize the syntax is incorrect. Is there a way to conditionally update a record in a MERGE statement only if it the value of one of its columns in the target table is NULL, and the corresponding value in the source table is not null? How would you suggest re-writing this? MERGE dbo.input_311 AS [t] USING dbo.input_311_staging AS [s] ON ([t].[unique key] = [s].[unique key]) WHEN NOT MATCHED BY TARGET THEN INSERT(t.

问题 The SQL Server Management Studio Object Explorer menu disappeared. The shortcut F8 and the view->object explorer method neither do anything. I have clicked everything on the keyboard, googled around, but nothing. I really need this back, it's a massive hassle having to navigate through the summary window without the object explorer tree view! 回答1: I just had this, and the menu option... Window > Reset Window Layout ...worked a treat. 回答2: I have seen this same problem when double-clicking on

问题 The SQL Server Management Studio Object Explorer menu disappeared. The shortcut F8 and the view->object explorer method neither do anything. I have clicked everything on the keyboard, googled around, but nothing. I really need this back, it's a massive hassle having to navigate through the summary window without the object explorer tree view! 回答1: I just had this, and the menu option... Window > Reset Window Layout ...worked a treat. 回答2: I have seen this same problem when double-clicking on