I have a complex query on a database with bad statistics and fragmented indices.What I\'m puzzled by is that when I examine an actual query plan I get 54 M rows from a table scan on a table that has 2
I have a table with 2 computed columns, both of which has \"Is Persisted\" set to true. However, when using them in a query the Execution Plan shows the UDF used to compute the columns as part of the
(Note: This was formerly titled \"How do a query plan\'s estimated executions/IO/CPU/Executions, etc, influence performance, all other things being equal?\", but I renamed it now that I know the answe
Is it possible to get the execution plan of a LINQ to SQL or ADO.NET Query programatically for displaying in debug information?If so, ho开发者_如何学Cw?Sure, there are 2 things you will need.
Works root@test # erl Erlang R14B02 (erts-5.8.3) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]
If I have statement DECLARE @i INT; DECLARE @d NUMERIC(9,3); SET @i = 123; SET @d = @i; SEL开发者_StackOverflow社区ECT @d;
Is it only the explain plan to look in when tuning a large sql string? Because when I push Ctrl+E in TOAD for Oracle (which generates explain plan), this takes several seconds. D开发者_Go百科oes TOAD
As the title states, I don\'t understand why the sp_executeSQL would generate a completely different execution plan than running the query from Sql Management Studio.
I have a stored procedure that contains some Select statements that return union result of them. I think and write one select instead of several Select and want to compa开发者_运维知识库re EXECUTION
The Situation I have some trouble with my query execution pl开发者_运维知识库an for a medium-sized query over a large amount of data in Oracle 11.2.0.2.0. In order to speed things up, I introduced a
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