I need to implement one logic similar to rule engine. Below is the example.how to execute all queries in second table order?? what is the best way to implements this
declare @tblRules AS Table (RuleNo INT, RuleDesc NVARCHAR(500), RuleQuery NVARCHAR(MAX), QueryExecutionInterval NVARCHAR(50))
declare @tblRuleResults AS Table (RuleResultID INT, RuleNo INT, ExecuteTime DateTime, NextExecutionTime DateTime, Result NVARCHAR(10))
INSERT INTO @tblRules VALUES ('1','Fail - 2 times within 1 Hour','XXX','Every 15 Minutes')
INSERT INTO @tblRules VALUES ('2','Fail- 2 times within 2 Hour','YYY','Every 30 Minutes')
know if there is any way out to run execution plan for parameterized queries?
As application is sending queries which are mostly parameterized in nature and values being used are very robust in nature, So i can not even make a guess.
Set up a trace with the events RPC:Completed, SQL:BatchCompleted, SQL:BatchStarting, and SQL:StmtCompleted.
When I issue the statement: SELECT * FROM XyzView there is nothing captured in Profiler. If I script out the view and then execute the select statement that defines the view, it does show up in Profiler.
I've tried adding a lot of the other events, i.e. SP:StmtCompleted and the various other StmtStarting events and the trace still does not capture anything.
Am I capturing the wrong events or is this known behavior? My goal is to see what the overhead is for using a view versus persisting the results of the view as a table and referencing that instead. The view in question is against static data, joins 9 tables, and is referenced a lot.
I can use the stats generated when I execute the select that defines the view but I still find this to be curious behavior so I assume I'm doing something wrong.
I want to save every query executed from a given software, let's say Multi Script for example, and save in a table query text, execution time and rows count among other possible useful information. Right now I've created a sp and a job that runs every 1 milliseconds but I can't figure out how to get execution time and rows count. Another problem with this is that if the query takes too long I end up with several rows in my table.
Is it possible to check query execution plan of a store procedure from create script (before creating it)?
Basically the developers want to know how a newly developed procedure will perform in production environment. Now, I don't want to create it in production for just checking the execution plan. However they've provided SQL script for the procedure. Now wondering is there any way to look at the execution plan for this procedure from the script provided?
I'm building a mining model wiht MS Association Rules. After processing this model, the result includes some rules(example):
E = Existing, C = Existing -> B = Existing F = Existing -> E = Existing C = Existing, B = Existing -> E = Existing F = Existing -> B = Existing B = Existing, A = Existing -> C = Existing F = Existing, B = Existing -> E = Existing F = Existing, E = Existing -> B = Existing D = Existing -> A = Existing C = Existing -> A = Existing E = Existing, A = Existing -> B = Existing
I want to buid a query that has two or more items on the left of the rules, example: E = Existing, C = Existing -> B = Existing ->I want to buid a query to predict that: when a customer buy 'E' and 'C' then he likely buys 'B'
Can I roll back certain query(insert/update) execution in one page if query (insert/update) in other page execution fails in asp.net.( I am using sqlserver 2000 as back end) scenario In a webpage1, I have insert query into master table and Page2 I have insert query to store data in sub table. I need to rollback the insert command execution for sub table ,if insert command to master table in web page1 is failed. (Query in webpage2 executes first, then only the query in webpage1) Can I use System. Transaction to solve this? Thanks in advance
I want to find out more information about the execution plan. I saw Parallelism (Gather Streams) in the excution plan. In what situation we can see this icon?If in case if we need to avoid how can we avoid this?
We have got a query for fine tuning and it is using lot of CTE ,how can i check the execution plan of that?
CREATE VIEW Mercy AS with ADR as ( SELECT urpx.RoleID , urx.UserID FROM [DBA].dbo.URPX WITH ( NOLOCK ) INNER JOIN [DBA].dbo.URX WITH ( NOLOCK ) ON urpx.RoleID = urx.RoleID WHERE PermissionID = '1' ), SDR as (
-- Collect the roles that a configured with Sales Team Create permission
-- This will include Sales Director , Suite Admin,
SELECT urpx.RoleID FROM [DBA].dbo.URPX WITH ( NOLOCK ) INNER JOIN [DBA].dbo.URX WITH ( NOLOCK ) ON urpx.RoleID = urx.RoleID LEFT OUTER JOIN ADR ON ADR.UserID = urx.UserID WHERE ADR.RoleID IS NULL AND PermissionID='2' )
I have an execution plan that is huge, the pdf it generates if I print it is over 1000 pages. Is there a way to change the graphical plan into a table, so I can sort the %, and find the items that are taking the longest?
I have a query which contains 12 left outer join. I remove some of the joins that don't have parameters. The result is coming same but usually when we remove joining it should take less exec time but for me it is taking more time. What could be the reason?
Whenever you connect to a database server that is running SQL 2012 integration services, then you right click on SSISDB, choose "Reports, then Standard Reports, then Executions" there is a display of each execution and options to drill down.
There is a particular execution that when I click to see "All Messages" I get a blank screen in SSMS with the following error: "Error: and error occurred during local report processing. --> An error has occurred during report processing. --> Exception of type 'System.OutOfMemoryException' was thrown."
Before I go add more memory to this SQL box, I need to understand how an out of the box, canned SSRS report such as this, which is built into Integration Services could produce this issue?
Curious if I have the code below as an example and I execute this code does sql execute from top to bottom? And does the Update run and complete before the delete occurs? Or does SQL execute the update and delete in parallel?
Need table has clusted index on needid column and NeedCategory have composite clustered index on needid and categoryid.
Now take a look on following query and execution plan for the query.
SELECT N.NeedId,N.NeedName,N.ProviderName FROM dbo.Need N JOIN dbo.NeedCategory NC ON nc.NeedId = n.NeedId WHERE IsActive=1 AND CategoryId= 2 ORDER BY NeedName
* Clustered index scan on need table is happens for Isactive= 1.
* Clustered index scan on needcategory table is happens for CategoryId=2
My question is,
1. Why scan happens before the join occurs? if it happens after join then the filter would be lighter. Even if optimizer chooses the scan to execute first.
2. Is there any chance to rearrange the execution plan manually?
Hi all I'm using Sql server 2000 and sometimes i need to run my Queries in Query analizer before using them in my application just to test them...BUT most of the time when i run a query in query-analizer for second time ,query analizer populates the result (records) more quicker then the first time. Apparently it caches the query !!! i don't know but for some reasons i dont't want this , so how can i prevent Query-analizer from doing so? Thanks in advance. Regards.
There is and SQL Agent job that starts a package (from a file system using cmd command). Usually job takes 8-10 minutes. But sometimes it get stuck for a long time (1+ hour).
DTexec process can be found with procmon, but it seems it just not doing anything (And package is not logging to file Start of the execution) After long wait it just runs a package quickly.
I've moved a package to SSIS catalog to try to get more detailed logging, but with no luck.
Job starts at 1 PM, package execution starts at 1:49 PM. Without any messages about the execution in SSISDB log.
First I've thought it might be long validation problem, but when package executes validation messages are there and they perform quick.
I'm in the process of trying to optimize a stored procedure with many queries. The execution plan provides a missing non-clustered index on nearly every query, and they're all fairly similar. The only real difference between them are what's in the INCLUDE statement. The two key columns are listed in every missing index. Let's say each query is approximately 5% of the total batch and 90% of the queries all fall into the category I listed above. How should I go about creating the missing indexes? Create all of the missing indexes or create one generic one that has all the INCLUDE columns? Create a minimal index with just a few of the common INCLUDE columns?
Here's an example of what I'm talking about with the missing indexes:
/* USE [DB] GO CREATE NONCLUSTERED INDEX [<Name of Missing Index, sysname,>] ON [dbo].[TABLE_1] ([COLUMN_A],[COLUMN_B]) INCLUDE ([C4ABCD],[C4ARTX],[C4ASTX],[C4ADNB],[C4AFNB],[C4BKVA]) GO */ /*
The Query Processor estimates that implementing the following index could improve the query cost by 99.9044%.
*/ /* USE [DB] GO CREATE NONCLUSTERED INDEX [<Name of Missing Index, sysname,>] ON [dbo].[TABLE_1] ([COLUMN_A],[COLUMN_B]) INCLUDE ([C4ARTX],[C4ASTX],[C4ADNB],[C4CZST]) GO */
/*
The Query Processor estimates that implementing the following index could improve the query cost by 99.5418%.
*/ /* USE [DB] GO CREATE NONCLUSTERED INDEX [<Name of Missing Index, sysname,>] ON [dbo].[TABLE_1] ([COLUMN_A],[COLUMN_B]) INCLUDE ([C4ABCD],[C4ARTX],[C4ASTX],[C4ADNB],[C4AFNB],[C4BKVA]) GO */
I'm new to using SQL Server. I've been asked to optimize a series of scripts that queries over 4 millions records. I've managed to add indexes and remove a cursor, which increased performance. Now when I run the execution plan, the only query that cost is a DELETE statement from the main table. It shows a SORT which cost 71%. The table has 2 columns and a unique index. Here is the current index:
ALTER TABLE [dbo].[Qry] ADD CONSTRAINT [Qry_PK] PRIMARY KEY NONCLUSTERED ( [QryNum] ASC, [ID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = ON, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO
Question: Will the SORT affect the overall performance? If so, is there anything I should change within the index that would speed up my query?
There is a checkbox when you create an SSIS catalog which says "Enable automatic execution of Integration Services stored procedure at SQL Server startup". It's a good practice to have this option on. BUT! How do you verify whether this option is ON or OFF after you have created a catalog and how do you enable it if it wasn't enabled at the time of creating the catalog?
I have a stored proc that is executing in 2 sec on production and test database. It is taking more than a min on dev environment.
I have verified sqlserver version is same on both of the server.Prod is running on 2012Sp1 however dev don't have sp1. I am downloading it.
Both are 64bit, has same collation and compatibility level.I have confirmed that sp on both servers has same execution plan. I have reset and import stats from prod too.
comparing UNIQUEIDENTIFIER columns..This query returns several rows where the [ReportId] and [LastRunDate] columns are both NULL:
SELECT [c].[Name],[c].[ItemID],[xl].[ReportID] , MAX([TimeStart]) [LastRunDate] FROM [dbo].[Catalog] [c] LEFT JOIN [dbo].[ExecutionLogStorage] [xl] on [c].[ItemID] = [xl].[ReportID] WHERE [c].[Type] NOT IN (1,5) -- Not a folder or a data source! group by [c].[Name],[c].[ItemID],[xl].[ReportID] order by 4
However, trying to just list catalog reports with no execution history returns 0 rows, but I'm expecting it to return a row for every NULL [ReportId] from the above query:
SELECT * FROM [dbo].[Catalog] WHERE [Type] NOT IN (1,5) -- Not a folder or a data source! AND [ItemID] NOT IN (SELECT [ReportID] FROM [dbo].[ExecutionLogStorage])
I even tried casting [ItemId] and [ReportId] columns in the 2nd query to VARCHAR(255), and still got no rows, but the following queries return 0 rows and 1 row (respectively).
select * from [dbo].[ExecutionLogStorage] where [ReportID] = '0BB2209C-7736-46C8-AD02-4614EBA4F0F1' select * from [dbo].[Catalog] where [ItemID] = '0BB2209C-7736-46C8-AD02-4614EBA4F0F1'
I am facing a strange problem in executing stored procedure. Basically my sproc will take a values from Java application and create a Insert statement. see stored procedure below.Just to give some more background- I am re writing the procedure which was written in oracle already.
Problem I am facing now is with the statement below . When I execute the procedure for first time it works fine however when I execute for second time onwards it is setting to empty. Not sure what is the problem with my declaration and setting up with values. For reference I have pasted my complete stored procedure code below.
SELECT *,isnull(dbo.fn_1(a),'') f_a, isnull(dbo.1(b),'') f_b FROM tablea with(nolock) WHERE ID = 12345 and ID<10000000 and dbo.fn_1(7)='asdfasdf' and Active='Y'
Does it effect performance as i am using a udf here? Also let me know the order in which the conditions will be applied.
I want to know is there any way by which we can come to know which query is going to be executed by the Engine prior to its execution. I think if this is possible then this will affect the performance. But It will be very helpful for me.
I have sql query to search for fields in a rather big view. If I execute the query in sql server enterprise manager, the results will be displayed in less than 6 seconds. However, if I execute it using asp.net, it will take very long (more than 2 minutes).
The query is a simple one like "SELECT * FROM myview WHERE name LIKE '%Microsoft%'". And the code I use to execute it in asp.net is
Dim dsRtn As DataSet Dim objConnection As OleDbConnection Try objConnection = GetOleDbConnection() objConnection.Open() Dim objDataAdapter As New OleDbDataAdapter(strSearch, objConnection) Dim objDataSet As New DataSet() objDataAdapter.Fill(objDataSet, strTableName) dsRtn = objDataSet Catch ex As Exception dsRtn = Nothing Finally If objConnection.State = ConnectionState.Open Then objConnection.Close() End If End Try
Where strSearch is the sql search string.
I don't have any problem using such code for other queries.
Could somebody suggest the cause of the problem and how to solve it? Thanks!
I am having a query where I am connecting to eight different tables using joins. When I join one table to another the speed of the execution becomes less. Even on my local server it is taking nearly 2 to 3 minutes to execute the query. How can I increase the speed of execution of my query.
