SQL Server 2012 :: Correlated Query To INNER JOIN Or Window Function
Mar 31, 2015
I'm having some performance issues with a TSQL query. It's a complex statement but the main issue is the correlated query.
How can I convert this
SELECT TOP 5
(SELECT SUM(lt2.col3)
FROM dbo.MyTable2 lt2
WHERElt2.col1 = lt.col1 AND lt2.col2 = lt.col2 AND lt2.id = lt.id ) AS Result
FROM dbo.MyTable1 t1
... to an inner join or a sql2012 window function?
By the way, I just added the TOP 5 myself while testing. It's not in the main query.
I have a question regarding windowing functions. I have a sales order table with the columns "orderid", "customerid", "order_date" and "amount". I use the following query to get the amount of every customer as a additional column:
Select customerid, orderid, order_date, amount, SUM(amount) OVER (PARTITION BY customerid) FROM sales_orders
My question is if there is a good way to add another column, which includes the SUM(amount) of the customerid, where the order_date > 2012-01-15 , something like this:
Select customerid, orderid, order_date, amount, SUM(amount) OVER (PARTITION BY customerid), SUM(amount) OVER (PARTITION BY customerid WHERE order_date > 2012-01-15) FROM sales_orders
I know, this is not a valid method, so do you know a way to achieve this? Can I maybe use CROSS APPLY or something like this? I know that I could use a subquery to get this, but is there maybe a way / a better way via window functions?
678 10/17/06 OTHER STATUS 678 10/17/06 APPROVE> 678 10/24/06 APPROVE
789 10/04/06 DECLINE 789 10/06/06 OTHER STATUS 789 10/06/06 APPROVE>
I am looking for a sql which extract EARLIEST DATE IF STATUS = APPROVE OR DECLINE, ONLY NEED TO CONSIDER THESE TWO STATUSES.
for example serial = 789, I want to select the last row, since it is approved status.
The arrow in the right side , means i want to select that row from my sql. If both statuses(decline and approve) is falls for a serial number, then I want to select the row with approved status with earliest date. example sir = 789
I'm using Transact SQL for SQL 2000 and I'm having difficulties with a correlated sub-query.
I have a table called 'Results' like this...
Company_ID Product Spend Flag_Top25 1 Product A $100 1 Product B $250 1 Product C $450
I want to create a flag to identify if a companies spending for each product is within the Top 25% of spending within the product category across all products.
For example, the code below would identify the Top 25% of Companies with spending on Product A.
SELECT TOP 25 PERCENT Company_ID FROM Results WHERE Product = 'Product A' ORDER BY Spend DESC
I'm trying the following correlated sub-query to get this done and it is not working.
UPDATE Results A SET A.Flag_Top25 = 'Top 25% Customer' WHERE A.Company_ID in ( SELECT TOP 25 Percent B.Company_ID FROM Results B WHERE B.Spend > 0 and B.Product = A.Product ORDER BY B.Spend DESC )
I have a table similar to the following: ID ¦ Name ID ¦ Period From ¦ Period To ¦ Percentage ¦ --------------------------------------------------------------------------- Important - Each person can have more than one entry. What I am trying to do is get the last percentage that each person obtained. The only way I have been able to do this is by the following: SELECT * FROM myTable LEFT OUTER JOIN ( SELECT NameID, MAX(PeriodTo) as PeriodTo FROM myTable GROUP BY NameID) t1 ON myTable.NameID = t1.NameID WHERE myTable.PeriodTo = t1.PeriodTo
I was wondering if there was another way of doing this, or whether this is an efficient method of doing this kind of query. Jagdip
I'm trying to write a query with named parameters/variables in the Management Studio - New Query pane. Where should I post a question about how to create parameters/variables?
I want to create a subset of a geography table. My intention is to select only a few cities with a where and after that select a percent of village for each of the cities. My query look like this:
I have tried with tablesample but it doesn´t return what I expect because I have many villages from one city (for example 15 % of it) and only 2 % of other. How can I achieve my goal?
I have SQL query/dual sub-query in MS Access that is returning data from the left side of the query FROM correctly, but is only returning one record from the right side of the query FROM. Furthermore, it repeats the display of the one record and it repeats the entire results set with a different one record each time until all the records have been displayed. I expect that problems described as “Furthermore” will not exist by fixing the one record issue. I have tried using all the join types available in MS Access, but none change the result.
The desired output is:
Yellow Blue 11/23/201311/19/2013 11/19/210310/01/2012 10/01/210210/08/2010 10/08/201012/14/2007
The actual output is:
Yellow Blue 11/23/201311/19/2013 11/19/210311/19/2013 10/01/210211/19/2013 10/08/201011/19/2013 11/23/201310/01/2102 11/19/210310/01/2102 10/01/210210/01/2102 10/08/201010/01/2102
The same pattern is repeated 2 more times with Blue values of 10/08/2010 and then 12/14/2007.
Here is the SQL:
SELECT Long_List.Yellow,Short_List.Blue FROM ( SELECT DISTINCT BirthDate AS Blue FROM ( SELECT DISTINCT BirthDate FROM citizens
Hotkey combination to be able to change the server connection from Server A to Server B in a query window in SQL Management Studio? This is so you do not have to Right click, chose "Connection" and then chose "Change Connection".
I have data in a table (@Outer) that I am matching to a lookup table (@Inner) which contains multiple "matches" where nulls can match any value. By sorting the inner table and grabbing the top record, I find the "best" match. I know the sort and the null matches work but I don't understand why the correlated sub query below doesn't understand that the OJ prefix refers to the outer table.DECLARE @Outer TABLE ( OuterID int IDENTITY (1, 1) NOT NULL, MethodID int NULL, CompID int NULL, FormID int NULL, InnerID int NULL )
-- UPDATE Outer Table with best match from Inner table UPDATE @Outer SET InnerID = IJ.InnerID FROM @Outer OJ INNER JOIN ( SELECT TOP 1 I.* FROM @Inner I WHERE IsNull(I.MethodID, OJ.MethodID) = OJ.MethodID AND IsNull(I.CompID, OJ.CompID) = OJ.CompID AND IsNull(I.FormID, OJ.FormID) = OJ.FormID ORDER BY I.MethodID DESC, I.CompID DESC, I.FormID DESC ) IJ ON OJ.MethodID = IsNull(IJ.MethodID, OJ.MethodID) AND OJ.CompID = IsNull(IJ.CompID, OJ.CompID) AND OJ.FormID = IsNull(IJ.FormID, OJ.FormID) SELECT * FROM @Outer The result should be OuterID 1 matched to Inner ID 3 and OuterID 2 matched to Inner ID 5. Can anyone help me? Thanks in advance.
In MSDN, it says that it is recommended to use windows authentication to connect to SQL Server rather than use mixed authentication.
I create user deltasqluser on windows OS, and I specify in my webform ASP.NET script below :
protected System.Web.UI.WebControls.Label Label1; private string _connString = @"data source=deltasql2000;initial catalog=northwind;integrated security=false;user id=deltasqluser"; /* comment : I login to my windows as deltakoronx, and I want to every user (including me), connected to sql server through IIS, will be identified as deltasqluser not as user's login (impersonate) */ private void Page_Load(object sender, System.EventArgs e) { SqlConnection conn = new SqlConnection(_connString); SqlCommand cmd = new SqlCommand(); cmd.Connection = conn; cmd.CommandType = CommandType.Text; cmd.CommandText = "select suser_sname()";
at web.config, I add : <identity impersonate="false" userName="deltasqluser" password="" />
at IIS webApplication1's properties, tab "Directory Security", at "Authentication and access control" section, I checked "enable anonymous access" with user : DELTAIUSR_DELTA and checked "Integrated Windows Authentication",
at query analyzer, I login as "sa" and execute script below : exec sp_grantdbaccess 'deltasqluser','northwind'
when I run the ASP.NET script, error at conn.Open(); with error message : Login failed for user 'NT AUTHORITYNETWORK SERVICE'.
What should I do so that IIS login to SQL Server as user deltasqluser not as "NT AUTHORITYNETWORK SERVICE" ?
I have a cube where i would like to define some actions. I have done report Actions but they are limiting in terms of what i am trying to achieve.I want a popup window from the action from relevant cells at the moment i can use the urlaction type to open the link in a new window which is ok but i want this as a popup.
These two T-SQL statements return the same results.
If Microsoft deemed it necessary to add the EXCEPT command, then what are its advantages over an INNER JOIN
-- LIST ONLY PRODUCTS THAT ARE ON A WORK ORDER
USE AdventureWorks2008R2; GO SELECT ProductID FROM Production.Product INTERSECT SELECT ProductID FROM Production.WorkOrder ;
USE AdventureWorks2008R2; GO SELECT DISTINCT Production.WorkOrder.ProductID FROM Production.Product INNER JOIN Production.WorkOrder ON Production.WorkOrder.ProductID = Production.Product.ProductID
What is wrong with my syntax?I want to return the value of the AchiveYear Value based on records in theCall that match.
SELECT DATEPART(yyyy,Call_Date) AS ArchiverYear FROM tblCall INNER JOIN PrismDataArchive.dbo.ArchiveDriver AS Arch ON tblCall.DATEPART(yyyy,Call_Date) = Arch.ArchiveYear
We have a query that joins column A int which is an int onto column B with contains only int's but was created as a varchar and can't be changed to an int at the moment.
Casting column a as a varchar in the ON of the join to left join seems to void the index altogether and the query just runs for every.
We are talking a few hundred million rows of data in each table.
Temp solution is select into a #Hash table as correct data type and index then use the #Hash table in the join.
I came across this structure today and haven't seen it before:
SELECT blablabla FROM T1 FULL OUTER JOIN T2 ON T1.Col1 = T2.Col1 AND T1.Col2 = T2.Col2 ON T3.Col1 = T1.Col1 AND T3.Col2 = T1.Col2 ON T4.Col1 = T1.Col1 AND T4.Col2 = T1.Col2
I need to add a join in my select query depending upon a variable @LoggedUser. the Join is to be there if @loggedUser is 1 else i do not need it. Currently I am using two different queries one with join and one without it under If (@LoggedUser check).
the join is like - JOIN (SELECT CAST(CONVERT(VARCHAR(8),Analyst_Effective_date , 1) AS DATETIME) Analyst_Effective_date FROM Users us (NOLOCK) JOIN Primary_Analysts (NOLOCK) ON User_Count_Id = Analyst_Id_fk WHERE User_Count_Id in ((SELECT VALUE FROM dbo.fParseString(@Analyst, ',')) )) Ana ON dep.Departure_Code = Ana.Primary_Analyst_Departure_Code_fk )
Any way that the join can be added conditionally in the query so i do not have to write the whole code again for one join.
I have two tables tabA (cola1, cola2, cola3) and tabB(colb1, colb2, colb3, colb4) which I need to join on all 3 columns of table A.
Of the 3 columns in tabA, few can be NULL, in that case I want to check the joining condition for the rest of the columns, so its conditional joining. Let me rephrase what I am trying to acheive - I need to check if the columns in joining condition is NULL in my 1st table (tabA), If so I need to check the joining condition for the rest of the two columns, if 2nd column is again NULL, I need to check the joining condition on the third column.
What I am trying to do is as below. Its working, but is very slow when one of the tables is huge. Can I optimize it or rewrite in a better way ?
--- First Create two tables Create table tabA (cola1 nvarchar(100), cola2 nvarchar(100), cola3 nvarchar(100)) Insert into tabA values (NULL,'A1','A2') Select * from tabA create table tabB
I have a scalar function, which calculates the similarity of two strings. I use the following query, to compare the entries of one table against the value 'Test' and return the entries, which have a value > 50:
;WITH cte1 AS ( SELECT b.FirstName, (SELECT fn_similarity('Test', b.FirstName)) AS [Value], b.LastName FROM [AdventureWorks2012].[Person].[Person] b )
SELECT * FROM cte1 WHERE [Value] > 50.00 ORDER BY [Value] DESC
Now I want to use this query against the first 50 entries of the [Person] table, so that the resultset includes all the values of the first 50 persons and the entries, which are similar to them.
At the moment I use a WHILE-loop and write the five single resultsets in a temporary table. Is there another way / a better way, maybe via a join?
I have setup CDC on 50 tables and then in one SP I’m calling all cdc function like below issue is I'm getting error “an insufficient number of arguments were supplied for the procedure or function cdc.fn_cdc_get_all_changes ... .” as error is not mentioning for which capture instance I'm getting this error so not able to find.
select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old') union all select * from cdc.fn_cdc_get_all_changes_<capture_instance>(@from_lsn, @to_lsn, 'all update old')
I am trying to install the MS SQL Server 2012 Failover Cluster on Windows Server 2012 . I successfully Installed the Failover cluster instance on my primary node.
But when I am running the installation process on passive node to add node in the failover cluster I am stuck with very unique kind of issue.
I am following the Standard process of Installation and I am getting the same windows for each next process, but after License Agreement window when I get the Cluster Node Configuration window, then in "SQL Server Instance Name" drop down box I am not getting the Name of Instance which is already installed on the primary node. But this Instance complete information is appearing in below given box.
Only issue is Instance name is not appearing in the drop down list, that's why I am not able to select and when I click on next it trough error and do not proceed.
Hi,I have a web application using Stored Procedure (SP). I see that there's a SP taking long time to execute. I try to capture it by Profiler Tool, and find out that with the same SP on the same db with the same parameter. The duration of executing by my web app is far bigger than the duration of executing on SQl server management studio - query windowPlease see the image attached http://kyxao.net/127/ExecutionProblem.png Any ideas for this issue?Thanks a lot Jalijack
I have two dynamic pivot tables that I need to join. The problem I'm running into is that at execution, one is ~7500 characters and the other is ~7000 characters.
I can't set them both up as CTEs and query, the statement gets truncated.
I can't use a temp table because those get dropped when the query finishes.
I can't use a real table because the insert statement gets truncated.
Do I have any other good options, or am I in Spacklesville?
I've following query which display the result as required, but I need to get the missing Primary Key Values which are not available in the result:
SELECTA.SignedByUserID, B.FullName, COUNT(A.OutletID) AS TotalSignups, DATENAME(Month, A.SignupDate) AS Month FROMdbo.tblMer_Outlet AS A LEFT OUTER JOIN dbo.tblGen_Users AS B ON A.SignedByUserID = B.UserID WHERE(A.SignupDate >= '2014-04-01 00:00:00' AND A.SignupDate <= '2014-04-30 23:59:59') GROUP BY A.SignedByUserID, B.FullName, DATENAME(Month, A.SignupDate)
This Query returns the following result:
SignedByUserID FullName TotalSignups Month -------------------------------------------------------- 9 Babu Raj 16 April 11 Faheem 19 April 39 Fasil Abbas 16 April 29 Hafiz Suleman 10 April
[code]....
which does not have a signup for the month of April, but I need it to be available for this or any upcoming month. I need this orr all users, which does not exists in the context needs to be displayed in the result.
i have below queries each select is fetching records at one level. Is there a way i can write single query to get to nth level (recursion) instead joining same table 10 times (i don't know in some cases there is may be next level) I stopped at 10th level now. In below example i gave only two levels.
SELECT Distinct a.Col1 AS EmpID, a.Col1 AS EmpID, a.Col2 AS Emp_guid, a.Col2 AS Emp_guid, case
