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  • SQl to list rows if not in another table

    - by SmartestVEGA
    I have the following query which have 1000 rows select staffdiscountstartdate,datediff(day,groupstartdate,staffdiscountstartdate), EmployeeID from tblEmployees where GroupStartDate < '20100301' and StaffDiscountStartDate > '20100301' and datediff(day,groupstartdate,staffdiscountstartdate)>1 order by staffdiscountstartdate desc i have the following query which have 400 rows: ie the employees in tblemployees and in tblcards select a.employeeid,b.employeeid from tblEmployees a,tblCards b where GroupStartDate < '20100301' and StaffDiscountStartDate > '20100301' and datediff(day,groupstartdate,staffdiscountstartdate)>1 and a.employeeid=b.employeeid How to list the employees which is there in tblemployees and not in tblcards? ie is 1000-400 = 600 rows ???

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  • T-SQL Table Variable Creating PHYSICAL Table!

    - by Mike
    OMG! What am I doing wrong? declare @WTF TABLE ( OrderItemId int ) SELECT TOP 20 OrderItemId as OrderItemId INTO [@WTF] FROM ac_OrderItems SELECT * FROM [@WTF] Problem A: This creates a PHYSICAL table called @WTF. WHY?? I thought this was in memory only?! Problem B: The last line of code, if I do select * from @WTF... WITHOUT the [ ], it returns NOTHING. What is the significance of the [ ]? I need serious help. I'm losing my MIND! Thanks in advance.

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  • Loop to LINQ Conversion -

    - by Pino
    Ok I have the following, set-up and working great. These lines of code should do a conversion from DAL Entity (Subsonic) to a ViewModel. IList<ProductOptionModel> OptionsRetData = new List<ProductOptionModel>(); foreach (var CurProductOption in this.ProductOptions) { OptionsRetData.Add(CurProductOption.ToDataModel()); } returnData.Options = OptionsRetData.AsEnumerable(); I'd like to convert this to a LINQ single line statment and came up with the following. returnData.Options = this.ProductOptions.Select(o => o.ToDataModel()); and am recieving the following error. Server Error in '/' Application. Sequence contains no matching element So why does the first statment work but not the LINQ and, what steps can I take to resolve it.

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  • Best way to randomly select rows *per* column in SQL Server

    - by LesterDove
    A search of SO yields many results describing how to select random rows of data from a database table. My requirement is a bit different, though, in that I'd like to select individual columns from across random rows in the most efficient/random/interesting way possible. To better illustrate: I have a large Customers table, and from that I'd like to generate a bunch of fictitious demo Customer records that aren't real people. I'm thinking of just querying randomly from the Customers table, and then randomly pairing FirstNames with LastNames, Address, City, State, etc. So if this is my real Customer data (simplified): FirstName LastName State ========================== Sally Simpson SD Will Warren WI Mike Malone MN Kelly Kline KS Then I'd generate several records that look like this: FirstName LastName State ========================== Sally Warren MN Kelly Malone SD Etc. My initial approach works, but it lacks the elegance that I'm hoping the final answer will provide. (I'm particularly unhappy with the repetitiveness of the subqueries, and the fact that this solution requires a known/fixed number of fields and therefore isn't reusable.) SELECT FirstName = (SELECT TOP 1 FirstName FROM Customer ORDER BY newid()), LastName= (SELECT TOP 1 LastNameFROM Customer ORDER BY newid()), State = (SELECT TOP 1 State FROM Customer ORDER BY newid()) Thanks!

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  • LINQ: How to Use RemoveAll without using For loop with Array

    - by CrimsonX
    I currently have a log object I'd like to remove objects from, based on a LINQ query. I would like to remove all records in the log if the sum of the versions within a program are greater than 60. Currently I'm pretty confident that this'll work, but it seems kludgy: for (int index = 0; index < 4; index++) { Log.RemoveAll(log => (log.Program[index].Version[0].Value + log.Program[index].Version[1].Value + log.Program[index].Version[2].Value ) > 60); } The Program is an array of 4 values and version has an array of 3 values. Is there a more simple way to do this RemoveAll in LINQ without using the for loop? Thanks for any help in advance!

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  • SQL Server - Complex Dynamic Pivot columns

    - by user972255
    I have two tables "Controls" and "ControlChilds" Parent Table Structure: Create table Controls( ProjectID Varchar(20) NOT NULL, ControlID INT NOT NULL, ControlCode Varchar(2) NOT NULL, ControlPoint Decimal NULL, ControlScore Decimal NULL, ControlValue Varchar(50) ) Sample Data ProjectID | ControlID | ControlCode | ControlPoint | ControlScore | ControlValue P001 1 A 30.44 65 Invalid P001 2 C 45.30 85 Valid Child Table Structure: Create table ControlChilds( ControlID INT NOT NULL, ControlChildID INT NOT NULL, ControlChildValue Varchar(200) NULL ) Sample Data ControlID | ControlChildID | ControlChildValue 1 100 Yes 1 101 No 1 102 NA 1 103 Others 2 104 Yes 2 105 SomeValue Output should be in a single row for a given ProjectID with all its Control values first & followed by child control values (based on the ControlCode (i.e.) ControlCode_Child (1, 2, 3...) and it should look like this Also, I tried this PIVOT query and I am able to get the ChildControls table values but I dont know how to get the Controls table values. DECLARE @cols AS NVARCHAR(MAX); DECLARE @query AS NVARCHAR(MAX); select @cols = STUFF((SELECT distinct ',' + QUOTENAME(ControlCode + '_Child' + CAST(ROW_NUMBER() over(PARTITION BY ControlCode ORDER BY ControlChildID) AS Varchar(25))) FROM Controls C INNER JOIN ControlChilds CC ON C.ControlID = CC.ControlID FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)') , 1, 1, ''); SELECT @query ='SELECT * FROM ( SELECT (ControlCode + ''_Child'' + CAST(ROW_NUMBER() over(PARTITION BY ControlCode ORDER BY ControlChildID) AS Varchar(25))) As Code, ControlChildValue FROM Controls AS C INNER JOIN ControlChilds AS CC ON C.ControlID = CC.ControlID ) AS t PIVOT ( MAX(ControlChildValue) FOR Code IN( ' + @cols + ' )' + ' ) AS p ; '; execute(@query); Output I am getting: Can anyone please help me on how to get the Controls table values in front of each ControlChilds table values?

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  • SQL Server IS_NULLABLE

    - by J Harley
    Good Morning, Just a quick question what this field actually means? I am trying to create an export script which follows this standard: lname varchar(30) **NOT NULL**, So if last name is_nullable=yes then would I put NULL rather than NOT NULL at the *'d code. Many Thanks, Joel

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  • not including null values in sql join

    - by Ashanti
    Hi, I have two tables CustomerAddress(CustomerId, City, Country) and CustomerTransactions(TransactionId, CustomerId, CustomerContact). Here are the values in the tables: For CustomerAddress: 1001, El Paso, USA 1002, Paris, France 1003, Essen, Germany For CustomerTransactions: 98, 1001, Phillip 99, 1001, NULL 100, 1001, NULL 101, 1003, Carmen 102, 1003, Carmen 103, 1003, Lola 104, 1003, NULL 105, 1002, NULL I'm trying to join both tables and have the following result set: 1001, El Paso, USA, Phillip 1002, Paris, France, (empty string) 1003, Essen, Germany, Carmen 1003, Essen, Germany, Lola It seems like a simple join but I'm having trouble coming up with the above result set. Please help. Thanks.

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  • How to calculate change in ANSI SQL

    - by morpheous
    I have a table that contains sales data. The data is stored in a table that looks like this: CREATE table sales_data ( sales_time timestamp , sales_amt double ) I need to write parameterized queries that will allow me to do the following: Return the change in sales_amt between times t2 and t1, where t2 and t1 are separated by a time interval (integer) of N. This query will allow for querying for weekly changes in sales (for example). Return the change in change of sales_amt between times t2 and t1, and time t3 and t4. Thats is to calculate the value (val(t2)-val(t1)) - (val(t4)-val(t3)). where t2 and t1 are separated by the same time interval (interval N) as the interval between t4 and t3. This query will allow for querying for changes in weekly changes in sales (for example).

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  • LINQ to SQL Translation

    - by Ben
    Hi, Depending on how I map my linq queries to my domain objects, I get the following error The member 'member' has no supported translation to SQL. This code causes the error: public IQueryable<ShippingMethod> ShippingMethods { get { return from sm in _db.ShippingMethods select new ShippingMethod( sm.ShippingMethodID, sm.Carrier, sm.ServiceName, sm.RatePerUnit, sm.EstimatedDelivery, sm.DaysToDeliver, sm.BaseRate, sm.Enabled ); } } This code works fine: public IQueryable<ShippingMethod> ShippingMethods { get { return from sm in _db.ShippingMethods select new ShippingMethod { Id = sm.ShippingMethodID, Carrier = sm.Carrier, ServiceName = sm.ServiceName, EstimatedDelivery = sm.EstimatedDelivery, DaysToDeliver = sm.DaysToDeliver, RatePerUnit = sm.RatePerUnit, IsEnabled = sm.Enabled, BaseRate = sm.BaseRate }; } } This is my testmethod I am testing with: [TestMethod] public void Test_Shipping_Methods() { IOrderRepository orderRepo = new SqlOrderRepository(); var items = orderRepo.ShippingMethods.Where(x => x.IsEnabled); Assert.IsTrue(items.Count() > 0); } How does the way in which I instantiate my object affect the linq to sql translation? Thanks Ben

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  • Weighted Average with LINQ

    - by jsmith
    My goal is to get a weighted average from one table, based on another tables primary key. Example Data: Table1 Key WEIGHTED_AVERAGE 0200 0 Table2 ForeignKey LENGTH PCR 0200 105 52 0200 105 60 0200 105 54 0200 105 -1 0200 47 55 I need to get a weighted average based on the length of a segment and I need to ignore values of -1. I know how to do this in SQL, but my goal is to do this in LINQ. It looks something like this in SQL: SELECT Sum(t2.PCR*t2.LENGTH)/Sum(t2.LENGTH) AS WEIGHTED_AVERAGE FROM Table1 t1, Table2 t2 WHERE t2.PCR <> -1 AND t2.ForeinKey = t1.Key; I am still pretty new to LINQ, and having a hard time figuring out how I would translate this. The result weighted average should come out to roughly 55.3. Thank you.

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  • T-SQL query with date range

    - by Moo
    Hi, I have a fairly weird 'bug' with a simple query, and I vaguely remember reading the reason for it somewhere a long time ago but would love someone to refresh my memory. The table is a basic ID, Datetime table. The query is: select ID, Datetime from Table where Datetime <= '2010-03-31 23:59:59' The problem is that the query results include results where the Datetime is '2010-04-01 00:00:00'. The next day. Which it shouldn't. Anyone? Cheers Moo

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  • How do I add values from two seperate querys in SQL

    - by fishhead
    Below is my attempt at addinf two values from seperate select statments...it's not working...I can't see why. Looking for some direction thanks select (v1.Value + v2.Value) as total from ( (Select Max(Value) as [Value] from History WHERE Datetime>='Apr 11 2010 6:05AM' and Datetime<='Apr 11 2010 6:05PM' and Tagname ='RWQ272017DTD' ) as v1 (Select Max(Value) as [Value] from History WHERE Datetime>='Apr 11 2010 6:05AM' and Datetime<='Apr 11 2010 6:05PM' and Tagname ='RU282001DTD' ) as v2 ) boy do I feel foolish...I asked the same question a few days ago...now I can't delete this.

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  • Optimizing ROW_NUMBER() in SQL Server

    - by BlueRaja
    We have a number of machines which record data into a database at sporadic intervals. For each record, I'd like to obtain the time period between this recording and the previous recording. I can do this using ROW_NUMBER as follows: WITH TempTable AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY Machine_ID ORDER BY Date_Time) AS Ordering FROM dbo.DataTable ) SELECT [Current].*, Previous.Date_Time AS PreviousDateTime FROM TempTable AS [Current] INNER JOIN TempTable AS Previous ON [Current].Machine_ID = Previous.Machine_ID AND Previous.Ordering = [Current].Ordering + 1 The problem is, it goes really slow (several minutes on a table with about 10k entries) - I tried creating separate indicies on Machine_ID and Date_Time, and a single joined-index, but nothing helps. Is there anyway to rewrite this query to go faster?

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  • Credentials work for SSMS but not (ODBC) LogParser script

    - by justSteve
    Via SSMS I'm able to connect and navigate the server/db in question. but trying to connect via a logparser script the same credentials fail. I'm trying to execute this from the same box on which the server's running. the username is owner/dbo of the db. The db has mixed mode authentication. [linebreaks for clarity] C:\TTS\tools\LogParserc:\tts\tools\logparser\logparser file:c:\tts\tools\logparser\errors2SQL.sql?source="C:\inetpub\logs\LogFiles\W3SVC8\u_ex100521.log" -i:IISW3C -o:SQL -createTable:ON -oConnString:"Driver={SQL Server Native Client 10.0};Server=servername\SQLEXPRESS;db=Tter;uid=logger2;pwd=foo" -stats:OFF Task aborted. Error connecting to ODBC Server SQL State: 28000 Native Error: 18456 Error Message: [Microsoft][SQL Server Native Client 10.0][SQL Server]Login failed for user 'logger2'. C:\TTS\tools\LogParser

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  • Cannot delete from sys.tables

    - by Shimmy
    How can I perform this query on whatever way: delete from sys.tables where is_ms_shipped = 0 What happened is, I executed a very large query and I forgot to put USE directive on top of it, now I got a zillion tables on my master db, and don't want to delete them one by one. UPDATE: It's a brand new database, so I don't have to care about any previous data, the final result I want to achieve is to reset the master db to factory shipping.

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  • Weird SQL Server 2005 Collation difference between varchar() and nvarchar()

    - by richardtallent
    Can someone please explain this: SELECT CASE WHEN CAST('iX' AS nvarchar(20)) > CAST('-X' AS nvarchar(20)) THEN 1 ELSE 0 END, CASE WHEN CAST('iX' AS varchar(20)) > CAST('-X' AS varchar(20)) THEN 1 ELSE 0 END Results: 0 1 SELECT CASE WHEN CAST('i' AS nvarchar(20)) > CAST('-' AS nvarchar(20)) THEN 1 ELSE 0 END, CASE WHEN CAST('i' AS varchar(20)) > CAST('-' AS varchar(20)) THEN 1 ELSE 0 END Results: 1 1 On the first query, the nvarchar() result is not what I'm expecting, and yet removing the X make the nvarchar() sort happen as expected. (My original queries used the '' and N'' literal syntax to distinguish varchar() and nvarchar() rather than CAST() and got the same result.) Collation setting for the database is SQL_Latin1_General_CP1_CI_AS.

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  • FTS: Searching across multiple fields 'intelligently'

    - by Wild Thing
    Hi, I have a SP using FTS (Full Text Search). I want searches across multiple fields, 'intelligently' ranking results based on the weights I assign. Consider a search on a view fetching data from tables: Book, Author and Genre. Now, I want the searcher to be able to do: "Ludlum Fiction", "Robert Ludlum Bourne", "Bourne Ludlum", etc. Unfortunately, the only way I have been able to do that at present is this: http://pastebin.com/fdce11ff This is pretty bad, because I am manually breaking up the search string. I know I am doing this completely the wrong way, but can't figure out the right way to search across multiple fields in FTS. Can somebody help please?

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  • help optimize sql query

    - by msony
    I have tracking table tbl_track with id, session_id, created_date fields I need count unique session_id for one day here what i got: select count(0) from ( select distinct session_id from tbl_track where created_date between getdate()-1 and getdate() group by session_id )tbl im feeling that it could be better solution for it

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  • How to convert row data into columns in SQL

    - by iHeartDucks
    Hi, I have looked into pivot but I think it requires an aggregate function which I do not need (I think). The result of my query is this Name Property Name PropertyValue ---------- ---------- ---------- lorem Work Phone 000.111.2020 ipsum Email [email protected] To Name Work Phone Email ---------- ---------- ---------- lorem 000.111.2020 [email protected] ipsum 001.101.2010 [email protected] I don't think I should use pivot here because I don't need to aggregate anything, I just want the row data to become a column.

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  • SQL Server 2008 FTS CONTAINSTABLE Not Returning More Than Five Rows

    - by Elijah Glover
    I have a single table called "Indexes", it contains one nvarchar and three ntext columns (all Full Text Indexes). Index is up to date. CONTAINSTABLE(Indexes, *), 'test', 5) //5 results No matter what I change the above keyword too, it only returns the first 3-5 results. It should roughly return 90-120 results, for the above query. SELECT count(*) FROM Indexes WHERE [Description] like '%test%' //122 results How would I start to troubleshoot this problem?

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  • Advanced Where Statements in Linq to Entity Framework

    - by JimJams
    Hi, I am wanting to create a Where statement within my Linq statement, but have hit a bit of a stumbling block. I would like to split a string value, and then search using each array item in the Where clause. In my normal Sql statement I would simply loop through the string array, and build up there Where clause then either pass this to a stored procedure, or just execute the sql string. But am not sure how to do this with Linq to Entity? ( From o In db.TableName Where o.Field LIKE Stringvalue Select o ).ToList() Hope you can help. Thanks in advance!

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