大约有 47,000 项符合查询结果(耗时:0.0459秒) [XML]

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SQL Server: Query fast, but slow from procedure

...: CREATE PROCEDURE GetOrderForCustomers(@CustID varchar(20)) AS BEGIN SELECT * FROM orders WHERE customerid = @CustID END Fast way: CREATE PROCEDURE GetOrderForCustomersWithoutPS(@CustID varchar(20)) AS BEGIN DECLARE @LocCustID varchar(20) SET @LocCustID = @CustID SELEC...
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Stored procedure slow when called from web, fast from Management Studio

...ariables. eg. change: ALTER PROCEDURE [dbo].[sproc] @param1 int, AS SELECT * FROM Table WHERE ID = @param1 to: ALTER PROCEDURE [dbo].[sproc] @param1 int, AS DECLARE @param1a int SET @param1a = @param1 SELECT * FROM Table WHERE ID = @param1a Seems strange, but it fixed my problem. ...
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Kill a postgresql session/connection

...user to use this function. This works on all operating systems the same. SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE -- don't kill my own connection! pid <> pg_backend_pid() -- don't kill the connections to other databases AND datname = 'database...
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What are the differences between a clustered and a non-clustered index?

...than a clustered index Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations. Because of the slower insert and update clustered indexes should be set on a field that is normally incremental ie Id or Timestamp. ...
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Finding median of list in Python

...t though: sorting is much more work in the worst case (Theta(n lg n)) than selecting the median (Theta(n))... – Jeremy Jun 11 '19 at 13:33 add a comment  | ...
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View HTTP headers in Google Chrome?

...you don't see any resources - look at tabs area (All | XHR JS and etc) and select All – Zanshin13 Jan 12 '17 at 10:05  |  show 4 more comments...
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Use a LIKE statement on SQL Server XML Datatype

If you have a varchar field you can easily do SELECT * FROM TABLE WHERE ColumnA LIKE '%Test%' to see if that column contains a certain string. ...
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How can I configure NetBeans to insert tabs instead of a bunch of spaces?

...it Tab for indenting code, I like to get a real tab. Meaning that when I select that, I only have one large thing selected. NetBeans inserts 5 spaces instead of a tab when I hit Tab . Is there a way I can change that? ...
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Select every Nth element in CSS

Is it possible to select, say, every fourth element in a set of elements? 4 Answers 4 ...
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The server principal is not able to access the database under the current security context in SQL Se

... DECLARE @UserName nvarchar(255) DECLARE orphanuser_cur cursor for SELECT UserName = su.name FROM sysusers su JOIN sys.server_principals sp ON sp.name = su.name WHERE issqluser = 1 AND (su.sid IS NOT NULL AND su.sid <> 0x0) AND suser_sname(su....