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  • C# Threading and Sql Connections

    - by Jonathan M
    I have a method that attempts to update a sql server database in an ASP.NET application. If the update fails, it catches the exception and then queues the update in MSMQ, and then spins up a new thread that will later de-queue the pending update and try again. When the thread starts, it fails to open a database connection because it is attempting to connect using Network Service as the login. The sql connection is using Windows Authentication, and will work outside of the thread. If I put a breakpoint in the code that executes inside the new thread and check the Thread.CurrentPrincipal, it shows the Identity as being the correct user. Why is the sql connection attempting to be opened by the Network Service account? I can elaborate further is necessary. Thanks.

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  • Converting a selected date from a datetimepicker into my query, along with subtracting a day

    - by MyHeadHurts
    I am currently using this to get yesterdays date, however i need to do something similar where the user will use a javascript datetimepicker in my asp.net page and i will then use the date they select instead of just yesterdays date Declare @dayselection int set @dayselection = CONVERT(int,DateAdd(year, @YearToGet - Year(getdate() + 1), DateAdd(day, DateDiff(day, 1, @dayToGet), 1) , DateAdd(month, DateDiff(month, 0, @monthToGet), 0) ) but it isnt working i keep getting syntax errors I want the day and year functions to stay the same i just need help with the month part. I need to convert the selected date into an int

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  • UPDATE from SELECT complains about more that one value returned

    - by Álvaro G. Vicario
    I have this data structure: request ======= building_id lot_code building ======== building_id lot_id lot === lot_id lot_code The request table is missing the value for the building_id column and I want to fill it in from the other tables. So I've tried this: UPDATE request SET building_id = ( SELECT bu.building_id FROM building bu INNER JOIN lot lo ON bu.lot_id=lo.lot_id WHERE lo.lot_code = request.lot_code ); But I'm getting this error: Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , , = or when the subquery is used as an expression. Is it due to wrong syntax? The data model allows more than one building per lot but actual data doesn't contain such cases so there should be at most one building_id per lot_code.

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  • Odd SQL behavior, I'm wondering why this works the way it does.

    - by Matthew Vines
    Consider the following Transact sql. DECLARE @table TABLE(val VARCHAR(255) NULL) INSERT INTO @table (val) VALUES('a') INSERT INTO @table (val) VALUES('b') INSERT INTO @table (val) VALUES('c') INSERT INTO @table (val) VALUES('d') INSERT INTO @table (val) VALUES(NULL) select val from @table where val not in ('a') I would expect this to return b, c, d, NULL but instead it returns b, c, d Why is this the case? Is NULL not evaluated? Is NULL somehow in the set 'a'?

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  • Select rows in random order and then reverse it

    - by Faruz
    I need to select rows in random order and return a query which holds the rows in both regular order and in reverse order. This is done to simulate a fantasy draft for a basketball game I'm working on. For example, I need a result set as followed: team1 1 team2 2 team6 3 team9 4 team9 5 team6 6 team2 7 team1 8 As you can see, the first four teams are random then then following four are in reverse order. Hope I managed to explain the problem, if not - please comment and I'll explain further.

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  • Multi table Triggers SQL Server noob

    - by Chin
    I have a load of tables all with the same 2 datetime columns (lastModDate, dateAdded). I am wondering if I can set up global Insert Update trigger for these tables to set the datetime values. Or if not, what approaches are there? Any pointers much appreciated

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  • Multi table Triggers ms sql noob

    - by Chin
    I have a load of tables all with the same 2 datetime columns (lastModDate, dateAdded). I am wondering if I can set up global Insert Update trigger for these tables to set the datetime values. Or if not, what approaches are there? Any pointers much appreciated

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  • how can i substitute a NULL value for a 0 in an SQL Query result

    - by Name.IsNullOrEmpty
    SELECT EmployeeMaster.EmpNo, Sum(LeaveApplications.LeaveDaysTaken) AS LeaveDays FROM EmployeeMaster FULL OUTER JOIN LeaveApplications ON EmployeeMaster.id = LeaveApplications.EmployeeRecordID INNER JOIN LeaveMaster ON EmployeeMaster.id = LeaveMaster.EmpRecordID GRoup BY EmployeeMaster.EmpNo order by LeaveDays Desc with the above query, if an employee has no leave application record in table LeaveApplications, then their Sum(LeaveApplications.LeaveDaysTaken) AS LeaveDays column returns NULL. What i would like to do is place a value of 0 (Zero) instead of NULL. I want to do this because i have a calculated column in the same query whose formular depends on the LeaveDays returned and when LeaveDays is NULL, the formular some how fails. Is there away i can put 0 for NULL such that that i can get my desired result.

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  • Compare Tables in different databases with ADO.Net 3.5

    - by MicMit
    I need to compare tables with the same names in different databases ( Sql Server 2008 ). How using C# code and ADO.Net to identify additions, deletions, updates. Is DataReader going to work in this scenario without stored procedures ? DataReader seems to be suitable for single database connection, or am I missing something ?

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  • shreding xml column

    - by csetzkorn
    Hi, I have a XML column which contains XML like this: <Set> <Element> <ID> 1 </ID> <List> <ListElement> <Part1> ListElement 1 </Part1> </ListElement> <ListElement> <Part1> ListElement2 </Part1> </ListElement> </List> </Element> <Element> <ID> 2 </ID> <List> <ListElement> <Part1> ListElement3 </Part1> </ListElement> <ListElement> <Part1> ListElement4 </Part1> </ListElement> </List> </Element> </Set> I would like to shred this into a relation table containing this: ID, ListElement 1, ListElement1 1, ListElement2 2, ListElement3 2, ListElement4 I am able to obtain the content of the Parts using something like this: select List.value('(Part1/text())[1]', 'varchar(max)') as test from Table CROSS APPLY xml.nodes('// Element/List/ListElement') AS List(List) but I have not yet achieved to keep the ‘foreign key’ (the ID value). Thanks. Best wishes, Christian

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  • how to get the comma seperated values of the column stored in the Sql server

    - by Innova
    how to get the comma separated values stored in the Sql Db into a individual values e.g in sql DB the column is stored with comma values as shown below, EligiblGroup A11,A12,A13 B11,B12,B13 I need to get EligibleGroup A11 A12 A13 B11 B12 ... I have written a query that will fetch me some list of employees with employee name and elibigle group XXX A11 YYY B11 ZZZ C11 I need to check that the employees(XXX,YYY,ZZZ) eligiblegroup falls within this EligiblGroup A11,A12,A13 B11,B12,B13 and retrun me only that rows.

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  • Incorrect syntax near the keyword 'select' while execuing query

    - by sam
    I am getting Incorrect syntax near the keyword 'select' after executing the following code. declare @c int SELECT @c = COUNT(*) FROM (select id, max(date_stored) from table B INNER JOIN table P ON B.id = P.id where id = 3) select @c I want to select total no of records having max stored dates in database. Can any one plz tell what I am doing wrong

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  • Errors with large data sources

    - by The Sheek Geek
    I'm doing some benchmarking on large data sources and binding/exporting data for reporting. I started with using a data set, filling it with 100000 rows and then attempting to open a crystal report with the retrieved data. I noticed that the data set filled just fine (took about 779 milliseconds) however, when attempting to export the data to the report or even bind to a gridview the application would fail with an OutOfMemoryException. Does anyone experienced this before or have an idea of how to get around it? It is very possible that clients will run reports for years worth of data and 100000 rows are not inconceivable. The application and the benchmark code are written in C# using ORACLE and SQL Server databases. I still have some data sources to test, but would like to know how to get around this just in case I don't find a better solution.

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  • import data from another table with same id

    - by Luca Romagnoli
    Hi, i have 2 table User (id, name, surname,cod) UserNew (uid, uname, usurname, ucod) The first table has data the second no. I have to copy the data of the User table in the UserNew table. I've tried with a insert query but uid (primary key) value changes. How can i do to mantaince the same values? thanks

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  • What are the repercussions of not checking existing data when adding a foreign key?

    - by scottm
    I've inherited a database that doesn't exactly strive for data integrity. I am trying to add some foreign keys to change that, but there is data in some tables that doesn't fit the constraints. Most likely, the data won't be used again so I want to know what problems I might face by leaving it there. The other option I see is to move it into some kind of table without referential constraints, just for historical purposes. So, what are the repercussions of not checking existing data? If I create a foreign key constraint on a table and don't check existing data, will all new data inserted into the table be enforced?

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  • Use database dynamically

    - by Redi
    This execution it is giving me an error! Any hints of what am I missing? declare @dbname varchar(500) set @dbname='master' Exec (' Use ' + @dbname + ' go create PROCEDURE [dbo].[krijo_database] @dbname nvarchar(2000), @Direktoria varchar(4000) AS BEGIN declare @stringu nvarchar(100) set @stringu = ''CREATE DATABASE '' + @dbname exec (@stringu) End ')

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  • [c++] - Help about class and error: C3861

    - by Chelsea_cole
    Can someone help me in this error? in "cDef.h" : #pragma once class cDef { public: static int STATE_LOGO; static int STATE_MENU; static int MESSAGE_ENTER; static int MESSAGE_UPDATE; static int MESSAGE_PAINT; static int MESSAGE_EXIT; }; in "GameState.h": #pragma once #ifndef _GameState_ #define _GameState_ #include "cDef.h" class MainGame; class GameState; class GameState { public: MainGame *mg; int GAME_STATE_DEF; virtual void MessengeEnter(int message) = 0; virtual void MessengeUpdate(int message,int keys) = 0; virtual void MessengePaint(int message,CDC *pDc) = 0; void StateHandler(int message,CDC *pDc,int keys); public: GameState(void); public: ~GameState(void); }; #endif in "GameState.cpp": #include "StdAfx.h" #include "GameState.h" GameState::GameState(void) { GAME_STATE_DEF = -1; } GameState::~GameState(void) { } void GameState::StateHandler(int message,CDC *pDc,int keys) { if(message == cDef.MESSAGE_ENTER) { MessageEnter(message); } if(message == cDef.MESSAGE_UPDATE) { MessageUpdate(message,keys); } if(message == cDef.MESSAGE_PAINT) { MessagePaint(message,pDC); } } error: warning C4832: token '.' is illegal after UDT 'cDef' see declaration of 'cDef' error C3861: 'MessageUpdate': identifier not found error C3861: 'MessageEnter': identifier not found error C3861: 'MessagePaint': identifier not found ..... Thanks in advance!

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  • Accented character regex

    - by user314573
    I'm trying to create a regex that will look for french words whether a user specifies the accented characters or not. So if the the user has searched for "déclaré" but types in declare instead I would like to be able to match the text still. I'm having difficulty making this more dynamic so that it can be matched on any french word... Closest example from another user from a different post was: d[eèéê]cl[aàáâ]r[eèéê] Is it even possible to write a regex for something like this? Any advice would be much appreciated.

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  • Binding formview with profile in asp.net

    - by IrfanRaza
    Hello friends, I want to display and update user profile using FormView control. But I dont know exactly how to do this. I am using custom providers for Roles, Membership and Profile. Everything is working fine. Can anybody provide solution? Thanks for sharing your valuable time.

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  • Cannot resolve collation conflict in Union select

    - by phenevo
    Hi, I've got tqo queries: First doesn't work: select hotels.TargetCode as TargetCode from hotels union all select DuplicatedObjects.duplicatetargetCode as TargetCode from DuplicatedObjects where DuplicatedObjects.objectType=4 because I get error: Cannot resolve collation conflict for column 1 in SELECT statement. Second works: select hotels.Code from hotels where hotels.targetcode is not null union all select DuplicatedObjects.duplicatetargetCode as Code from DuplicatedObjects where DuplicatedObjects.objectType=4 Structure: Hotels.Code -PK nvarchar(40) Hotels.TargetCode - nvarchar(100) DuplicatedObjects.duplicatetargetCode PK nvarchar(100)

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  • SQL dealing with rubbish in a phone number field

    - by DoctaJonez
    Hello stackers! I've got a wonderfully fun little SQL problem to solve today and thought I'd ask the community to see what solutions you come up with. We've got a really cool email to text service that we use, you just need to send an email to [email protected] and it will send a text message to the desired phone number. For example to send a text to 0790 0006006, you need to send an email to [email protected], pretty neat huh? The problem is with the phone numbers in our database. Most of the phone numbers are fine, but some of them have "rubbish" mixed in with the phone number. Take these wonderful examples of the rubbish you need to deal with (I've anonymised the phone numbers by placing zeroes in): 07800 000647(mobile) 07500 000189 USE 1ST SEE NOTES 07900 000415 HO ONLY try 1st 0770 0000694 then home 07500 000465 Cannot Requirements The solution needs to be in SQL (for MS SQL server). So the challenge is as follows, we need to get the phone number without spaces, and without any of the rubbish seen in the samples. For example: This: try 1st 0770 0000694 then home Should become this: 07700000694 Anything without a phone number in it (e.g. "SEE NOTES") should be null.

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  • integrity Constraints on a table.

    - by Dinesh
    See this sample schema Passenger(id PK, Name) Plane(id PK, capacity, type); Flight(id PK, planeId FK(Plane), flightDate, StartLocation, destination) CREATE TABLE Reservation(PassengerId, flightId, PRIMARY KEY (passengerId, flightId), FOREIGN KEY (passengerId) REFERENCES Passenger, FOREIGN KEY (flightId) REFERENCES Flight); I need to define an integrity constraint that enforces the restriction that the number of passengers on a plane cannot exceed the plane’s capacity. I have tried and achieved so far is this. CREATE TABLE Reservation( passengerId INTEGER, flightId INTEGER, PRIMARY KEY (passengerId, flightId), FOREIGN KEY (passengerId) REFERENCES Passenger, FOREIGN KEY (flightId) REFERENCES Flight, Constraint check1 check(Not Exists(select * from Flight s, (select count(*) as totalRes from Reservation group by flightId) t where t.totalRes > s.capacity ) ) ); I am not sure i am doing in right way or not. Any suggestions?

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