Adding Externall DLL Functions Written In Visual C++
Aug 24, 2006
Hi,
I'm trying to add exernal functions defined by a third party in a dll. They developed the dll in Visual C++ and is provided as is, with very little additional info about the code. The dll is tested and can be integrated into an application developed with VB.NET but no other experiences are available. I tried to add the functions to SQL Server 2005 Express edition but on attempting to CREATE the ASSEMBLY i get the following error:
CREATE ASSEMBLY for assembly 'ThirdPartyDll' failed because assembly 'ThirdPartyDll' is malformed or not a pure .NET assembly.
Unverifiable PE Header/native stub.
No rows affected.
(0 row(s) returned)
@RETURN_VALUE = -6
Finished running [dbo].[ThirdPartyDll].
Is there an alternative way to add these functions for non pure .NET assemblies, or in general, is there a workaround to solve the problem?
By the way, do i need to register the dll with RegSvr32 first?
Thanks,
Marco.
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Feb 25, 2008
Hello !
I would like to add a day to a static date, something like this :
SELECT
dbo.Answer.ID
FROM
dbo.Answer
where answer.moment > '20080224'+1
[where '20080224' is a date : 24th of fébrurary 2008]
Looks bizzare, but I need it for a more complex query.
Thanks a lot for any help !
my favorit hoster is ASPnix : www.aspnix.com !
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Nov 20, 2005
I'm fairly new to using SQL Server and I'm having problems just trying to edit Functions in the SQL server database with Visual Studio .Net 2003.
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Jun 13, 2014
I have a simple query like:
select max(PTR_DATE)
from MPR_portfolio_transactions
group by PTR_SYMBOL
and this is working fine, but if I add an extra column with another field like:
select max(PTR_DATE) , PTR_SHAREBALANCE
from MPR_portfolio_transactions
group by PTR_SYMBOL
Then I get an error message like:
Column 'MPR_portfolio_transactions.PTR_SHAREBALANCE' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.
How can I get round to this?
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Aug 16, 2007
We have an Access application using Jet. I added some new indexes yesterday and now they are being blamed for poor Access application performance. I then dropped the new indexes. The poor performance continued until the Access application was re-linked to the SS2000 database. Then things returned to normal.
Question, does Access/Jet persist SqlServer schema info in its MDB (or elsewhere?) I am told that the MDB is copied from a share to the local PC where it grows during its use. Some people are saying the MDB persists schema info about the SS2000 schema which influences how Jet accesses the SS2000 database. Is that true? Is there a link where I can read about this? I am a dba and am not an Access developer . . .
Thanks!
Michael
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Jul 19, 2006
good idea or bad idea?
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May 14, 2008
hi i added a new table to my existing database in visual web developernow when i am running this i get an error Invalid object name 'TestTable'.with this sql command string sqlCmd = "INSERT INTO [TestTable] ([Employee], [Client] ,[Project] ,"+ "[TimeSpent],[TimeSpentOnline] ,[Description],[Incident], [Billable],[AfterHours],[Pending],"+ "[OnSite] ,[WorkOrder]) VALUES( '" + employee + "' ,'" + client + "','" + project + "','" + timeSpent + "','" + timeSpentOnline + "','" + desc + "'," + iactive + "," + bactive + "," + ahactive + "," + pactive + "," + osactive + "," + woactive + ")"; but it was working fine i was using this table which is exactly the same thing just a different name ..by the way i didnt create the tracking table string sqlCmd = "INSERT INTO [Tracking] ([Employee], [Client] ,[Project] ,"+ "[TimeSpent],[TimeSpentOnline] ,[Description],[Incident], [Billable],[AfterHours],[Pending],"+ "[OnSite] ,[WorkOrder]) VALUES( '" + employee + "' ,'" + client + "','" + project + "','" + timeSpent + "','" + timeSpentOnline + "','" + desc + "'," + iactive + "," + bactive + "," + ahactive + "," + pactive + "," + osactive + "," + woactive + ")"; i have already double checked the data types and also have made sure that everything was saved properly..... Can any one plz help me out on this
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Sep 10, 2006
I am new to SQL Server 2005 and Visual C++ 2005 Express.
When I try and add a connection in Visual C++:
DataSource: SQL Server Database File
File Name: c:.......file.mdf
Windows Authentication
I get the following message:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under default settings SQL Server does not allow remote connections. (provider: Share Memeory Provider, error:36 - The Shared Memory dll used to connect to SQL Server 2000 was not found)
Any ideas?
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Jul 12, 2004
Hi
I keep reading it's possible to add, amend ,etc. tables in visual studio but to do so I need access to the features that allow this.
I can connect to the database but I haven't been able to use any of these database features since they are "blanked" out.
Obviously, I can do all this at the server but ideally I would like to do it remotely.
Any suggestions?
Thanks in advance.
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Sep 19, 2007
I have two similar packages that are both experiencing this issue.
I need to add a script step to generate an incrementing id for the packages.
Once I add the script step, and then save the package, next time I open the package I get a "Microsoft Visual Studio has encountered a problem and needs to close" error which kills off Visual Studio.
The error signature is:
EventType: clr20r3
P1: devenv.exe
P2: 8.0.50727.762
P3: 45716759
P4: microsoft.sqlserver.txscript
P5: 9.0.242.0
P6: 443f5ab8
P7: 67
P8: d
P9: bbp0yyyc15o2dbouwcacz2m0bodqkotn
If I move the error window to one side, delete the whole Script step, and save the Package, then I can reopen the package again without the error occurring.
Here is the actual code in my script step (in case its of any assistance...)
(I have retyped it from a printout, so it may not be 100%. DOCID is supposed to increment from 1. DREF1 is a system-unique id, that takes up from where the last batch left off, and is a string prefixed by "MP")
Code Snippet
Imports System
Imports System.Data
Imports System.math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dta.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
Dim ndx as Int32 = 0
Public Overrides Sub Input0_ProcessInputRow(Byval Row as Input0Buffer)
'
' Add your code here
'
Dim dref as String
ndx = ndx + 1
Row.DOCID = ndx
dref = "MP" + Ctype(ndx + Variables.MPIDOrig, String)
Row.DREF1 = dref
End Sub
Protected Overrides Sub finalize()
Variables.MPID = ndx + Variables.MPIDOrig
MyBase.Finalize()
End Sub
End Class
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Feb 26, 2007
Hi,
I'm am deploying an application that uses SQL Express and wish to also deploy SSMSE along with it.
I have the .msi but I don't know how to get the setup project to deploy this as it does SQLExpress and .Net Framework 2.0. (and I am using VS 2005 SE)
There is an MS article on creating "Custom Prerequisites" (http://msdn2.microsoft.com/en-us/library/ms165429(VS.80).aspx) which speaks to creating product and project manifests.
Has anyone does this for SSMSE? Or am I going about this in the wrong way?
Thanks in advance,
Keith
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Jun 4, 2007
I have created a integration services project on machine A and have added to visual source safe 6.0
When i try to take the project from source safe and store that on a different machine B i have a problem with it....
I check in everything on Machine A
When i try to add on machine B it tries to add it with "Name of package(1)" which means that its adding a copy.But it dosent do for all only for few
Could anyone let me know what the problem is??????
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May 27, 2007
Hi,
I'm a complete novice concerning SQL Server (Express Edition)
I'm trying to Add or Delete rows froma VB 2005 Express Function or Sub. While the program is running everything is ok. Except when restarted added records are gone and deleted records are back.
Have i missed an option during installation?
Thx,
Steven
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Apr 22, 2015
I'll go to a dataset, open up the query designer, add a new parameter, then refresh the fields, but the parameter won't be added as a report parameter. If I go to the dataset properties under the list of parameters, the value in the dropdown will be blank. However, sometimes this will automatically add.
Is this a bug in Visual Studio? How do I get around this?
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Dec 18, 2007
I'm having a database insertion problem. I make an entry to my registration form, write it to the database; then the next registration entry displays an error that the same UID can't be written to the database. I don't know where to start tracing this, but here is the stored procedure I use and some of the code that might generate it.
@UserName nvarchar(128), @Email nvarchar(50), @FirstName nvarchar(25), @LastName nvarchar(50), @Teacher nvarchar(25), @GradYr int DECLARE @UserID uniqueidentifier SELECT @UserID = NULL SELECT @UserID = UserId FROM dbo.aspnet_Users WHERE LOWER(@UserName) = LoweredUserName
INSERT INTO [table name](UserID,UserName,Email,FirstName,LastName,Teacher,GradYr) VALUES (@UserID,@UserName,@Email,@FirstName,@LastName,@Teacher,@GradYr) Protected Sub cuwCreateUserWizard1_CreatingUser(ByVal sender As Object, ByVal e As System.EventArgs) Handles cuwCreateUserWizard1.CreatedUser strEmail = CType(cuwCreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("Email"), TextBox).Text strUserName = CType(cuwCreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("UserName"), TextBox).Text.ToLower strFirstName = CType(cuwCreateUserWizard1.CreateUserStep.CustomNavigationTemplateContainer.FindControl("txtFirstName"), TextBox).Text strLastName = CType(cuwCreateUserWizard1.CreateUserStep.CustomNavigationTemplateContainer.FindControl("txtLastName"), TextBox).Text lngGradYr = CType(cuwCreateUserWizard1.CreateUserStep.CustomNavigationTemplateContainer.FindControl("txtGradYr"), TextBox).Text strTeacher = CType(cuwCreateUserWizard1.CreateUserStep.CustomNavigationTemplateContainer.FindControl("txtTeacher"), TextBox).Text End Sub Protected Sub cuwCreateUserWizard1_CreatedUser(ByVal sender As Object, ByVal e As System.EventArgs) Handles cuwCreateUserWizard1.CreatedUser Dim cmd As New SqlCommand("sp_CreateUser", con) cmd.CommandType = Data.CommandType.StoredProcedure cmd.Parameters.AddWithValue("@UserName", strUserName) cmd.Parameters.AddWithValue("@Email", strEmail) cmd.Parameters.AddWithValue("@FirstName", strFirstName) cmd.Parameters.AddWithValue("@LastName", strLastName) cmd.Parameters.AddWithValue("@Teacher", strTeacher) cmd.Parameters.AddWithValue("@GradYr", lngGradYr) Using con con.Open() cmd.ExecuteScalar() con.Close() End Using cmd.Equals(Nothing) End Sub
Please let me know if any other info is needed to help determine what's wrong.
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Oct 6, 1998
Hi,
i have following problem:
I have a DB with 4 tables in MSSQL6.5. In those tables write an NT service (4 threads for each table) 24h/day. I want to know somehow when i have no write in one of those tables for more than 1-2 hours (i dont want to querry those tables everytimes). MSSQL6.5 offer this kind of facilities? Or I can do this using stored procedures or something else?
Thank you very much,
Sebastian Bologescu
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May 26, 2006
I was playing around with the new SQL 2005 CLR functionality andremembered this discussion that I had with Erland Sommarskog concerningperformance of scalar UDFs some time ago (See "Calling sp_oa* infunction" in this newsgroup). In that discussion, Erland made thefollowing comment about UDFs in SQL 2005:[color=blue][color=green]>>The good news is that in SQL 2005, Microsoft has addressed several of[/color][/color]these issues, and the cost of a UDF is not as severe there. In fact fora complex expression, a UDF in written a CLR language may be fasterthanthe corresponding expression using built-in T-SQL functions.<<I thought the I would put this to the test using some of the same SQLas before, but adding a simple scalar CLR UDF into the mix. The testinvolved querying a simple table with about 300,000 rows. Thescenarios are as follows:(A) Use a simple CASE function to calculate a column(B) Use a simple CASE function to calculate a column and as a criterionin the WHERE clause(C) Use a scalar UDF to calculate a column(D) Use a scalar UDF to calculate a column and as a criterion in theWHERE clause(E) Use a scalar CLR UDF to calculate a column(F) Use a scalar CLR UDF to calculate a column and as a criterion inthe WHERE clauseA sample of the results is as follows (time in milliseconds):(295310 row(s) affected)A: 1563(150003 row(s) affected)B: 906(295310 row(s) affected)C: 2703(150003 row(s) affected)D: 2533(295310 row(s) affected)E: 2060(150003 row(s) affected)F: 2190The scalar CLR UDF function was significantly faster than the classicscalar UDF, even for this very simple function. Perhaps a more complexfunction would have shown even a greater difference. Based on this, Imust conclude that Erland was right. Of course, it's still faster tostick with basic built-in functions like CASE.In another test, I decided to run some queries to compare built-inaggregates vs. a couple of simple CLR aggregates as follows:(G) Calculate averages by group using the built-in AVG aggregate(H) Calculate averages by group using a CLR aggregate that similatesthe built-in AVG aggregate(I) Calculate a "trimmed" average by group (average excluding highestand lowest values) using built-in aggregates(J) Calculate a "trimmed" average by group using a CLR aggregatespecially designed for this purposeA sample of the results is as follows (time in milliseconds):(59 row(s) affected)G: 313(59 row(s) affected)H: 890(59 row(s) affected)I: 216(59 row(s) affected)J: 846It seems that the CLR aggregates came with a significant performancepenalty over the built-in aggregates. Perhaps they would pay off if Iwere attempting a very complex type of aggregation. However, at thispoint I'm going to shy away from using these unless I can't find a wayto do the calculation with standard SQL.In a way, I'm happy that basic SQL still seems to be the fastest way toget things done. With the addition of the new CLR functionality, Isuspect that MS may be giving us developers enough rope to comfortablyhang ourselves if we're not careful.Bill E.Hollywood, FL------------------------------------------------------------------------- table TestAssignment, about 300,000 rowsCREATE TABLE [dbo].[TestAssignment]([TestAssignmentID] [int] NOT NULL,[ProductID] [int] NULL,[PercentPassed] [int] NULL,CONSTRAINT [PK_TestAssignment] PRIMARY KEY CLUSTERED([TestAssignmentID] ASC)--Scalar UDF in SQLCREATE FUNCTION [dbo].[fnIsEven](@intValue int)RETURNS bitASBEGINDeclare @bitReturnValue bitIf @intValue % 2 = 0Set @bitReturnValue=1ElseSet @bitReturnValue=0RETURN @bitReturnValueEND--Scalar CLR UDF/*using System;using System.Data;using System.Data.SqlClient;using System.Data.SqlTypes;using Microsoft.SqlServer.Server;public partial class UserDefinedFunctions{[Microsoft.SqlServer.Server.SqlFunction(IsDetermini stic=true,IsPrecise=true)]public static SqlBoolean IsEven(SqlInt32 value){if(value % 2 == 0){return true;}else{return false;}}};*/--Test #1--Scenario A - Query with calculated column--SELECT TestAssignmentID,CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END ASCalcColumnFROM TestAssignment--Scenario B - Query with calculated column as criterion--SELECT TestAssignmentID,CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END ASCalcColumnFROM TestAssignmentWHERE CASE WHEN TestAssignmentID % 2=0 THEN 1 ELSE 0 END=1--Scenario C - Query using scalar UDF--SELECT TestAssignmentID,dbo.fnIsEven(TestAssignmentID) AS CalcColumnFROM TestAssignment--Scenario D - Query using scalar UDF as crierion--SELECT TestAssignmentID,dbo.fnIsEven(TestAssignmentID) AS CalcColumnFROM TestAssignmentWHERE dbo.fnIsEven(TestAssignmentID)=1--Scenario E - Query using CLR scalar UDF--SELECT TestAssignmentID,dbo.fnIsEven_CLR(TestAssignmentID) AS CalcColumnFROM TestAssignment--Scenario F - Query using CLR scalar UDF as crierion--SELECT TestAssignmentID,dbo.fnIsEven_CLR(TestAssignmentID) AS CalcColumnFROM TestAssignmentWHERE dbo.fnIsEven(TestAssignmentID)=1--CLR Aggregate functions/*using System;using System.Data;using System.Data.SqlClient;using System.Data.SqlTypes;using Microsoft.SqlServer.Server;[Serializable][Microsoft.SqlServer.Server.SqlUserDefinedAggregate (Format.Native)]public struct Avg{public void Init(){this.numValues = 0;this.totalValue = 0;}public void Accumulate(SqlDouble Value){if (!Value.IsNull){this.numValues++;this.totalValue += Value;}}public void Merge(Avg Group){if (Group.numValues > 0){this.numValues += Group.numValues;this.totalValue += Group.totalValue;}}public SqlDouble Terminate(){if (numValues == 0){return SqlDouble.Null;}else{return (this.totalValue / this.numValues);}}// private accumulatorsprivate int numValues;private SqlDouble totalValue;}[Serializable][Microsoft.SqlServer.Server.SqlUserDefinedAggregate (Format.Native)]public struct TrimmedAvg{public void Init(){this.numValues = 0;this.totalValue = 0;this.minValue = SqlDouble.MaxValue;this.maxValue = SqlDouble.MinValue;}public void Accumulate(SqlDouble Value){if (!Value.IsNull){this.numValues++;this.totalValue += Value;if (Value < this.minValue)this.minValue = Value;if (Value > this.maxValue)this.maxValue = Value;}}public void Merge(TrimmedAvg Group){if (Group.numValues > 0){this.numValues += Group.numValues;this.totalValue += Group.totalValue;if (Group.minValue < this.minValue)this.minValue = Group.minValue;if (Group.maxValue > this.maxValue)this.maxValue = Group.maxValue;}}public SqlDouble Terminate(){if (this.numValues < 3)return SqlDouble.Null;else{this.numValues -= 2;this.totalValue -= this.minValue;this.totalValue -= this.maxValue;return (this.totalValue / this.numValues);}}// private accumulatorsprivate int numValues;private SqlDouble totalValue;private SqlDouble minValue;private SqlDouble maxValue;}*/--Test #2--Scenario G - Average Query using built-in aggregate--SELECT ProductID, Avg(Cast(PercentPassed AS float))FROM TestAssignmentGROUP BY ProductIDORDER BY ProductID--Scenario H - Average Query using CLR aggregate--SELECT ProductID, dbo.Avg_CLR(Cast(PercentPassed AS float)) AS AverageFROM TestAssignmentGROUP BY ProductIDORDER BY ProductID--Scenario I - Trimmed Average Query using built in aggregates/setoperations--SELECT A.ProductID,CaseWhen B.CountValues<3 Then NullElse Cast(A.Total-B.MaxValue-B.MinValue ASfloat)/Cast(B.CountValues-2 As float)End AS AverageFROM(SELECT ProductID, Sum(PercentPassed) AS TotalFROM TestAssignmentGROUP BY ProductID) ALEFT JOIN(SELECT ProductID,Max(PercentPassed) AS MaxValue,Min(PercentPassed) AS MinValue,Count(*) AS CountValuesFROM TestAssignmentWHERE PercentPassed Is Not NullGROUP BY ProductID) BON A.ProductID=B.ProductIDORDER BY A.ProductID--Scenario J - Trimmed Average Query using CLR aggregate--SELECT ProductID, dbo.TrimmedAvg_CLR(Cast(PercentPassed AS real)) ASAverageFROM TestAssignmentGROUP BY ProductIDORDER BY ProductID
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Dec 31, 2005
I am very new to SQL server and I'm using stored procedures for my program. So far I wrote one tonight, that works just fine.
I haven't really written one before, but its kind of similar syntax since I know C++/C# and VB.
My question is, even though this works for what I need it do, is it written correctly? Can you see any problems with it, or would you have done it differently?
I want to make sure its done correctly, and it runs as fast as possible.
Thanks!
[pre]
CREATE PROCEDURE CreateNewUser
@UserID int out, @LoginID nvarchar(30), @Password nvarchar(30), @RegisterDate smalldatetime, @LoginIDExists nvarchar(30)AS /* Check to see if the loginID is already in use before attempting to save it. We MUST have a unique loginID for each user */ SELECT @LoginIDExists = loginID FROM users WHERE loginID = @LoginID
/* If we pulled a value from the database, then the loginID already exists, return with error code 1 */ IF (@LoginIDExists = @LoginID) BEGIN SELECT 1 RETURN END
ELSE BEGIN /* The loginID does not already exist, attemp to add the new user to the database. */ INSERT INTO users ( loginID, loginpassword, registerDate ) VALUES ( @LoginID, @Password, @RegisterDate )
/* Grab the UserID for the new user. */ SELECT @UserID = @@identity
/* return with error code 0 */ SELECT 0 RETURN ENDGO
[/pre]
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Oct 12, 1999
I'm wondering if anyone has a written project plan for upgrading a server to 7.0 from 6.5.
I'm looking to make this upgrade myself shortly. I would appreciate any dialog, or a written
working plan. Thanks,
Mark Blackburn o `"._ _ M onterey
mark@mbari.org o / _ |||;._/ ) B ay
Science at its Best! ~ _/@ @ /// ( ~ A quarium
(831) 775-1880 ( (`__, ,`| R esearch
http://www.mbari.org/ '.\_/ |\_.' I nstitute
Database Administrator
MBARI Personal Web Page: http://www.mbari.org/~mark/
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Aug 27, 2002
If someone can tell me if this script run with sql2000 it would be great.
Thanks in advance.
SELECT "Date du traitement :" = getdate()
go
print 'ORDRE DE TRI '
print '----------------------'
go
EXEC SP_HELPSORT
GO
print ' '
print 'VERSION'
print '-------------'
print ' '
go
SELECT @@VERSION
GO
print ' '
print 'CONFIGURATION DU SERVEUR '
print '----------------------------------------------'
print ' '
go
EXEC SP_CONFIGURE
GO
print ' '
print 'LISTE DES BASES SQL'
print '---------------------------------'
print ' '
go
EXEC SP_HELPDB
GO
PRINT " "
PRINT " "
PRINT 'LISTE DES DEVICES'
PRINT '-----------------'
PRINT " "
EXEC SP_HELPdevice
PRINT " "
GO
DECLARE @cmd NVARCHAR (300)
DECLARE @cmd1 NVARCHAR (300)
DECLARE @cmd2 NVARCHAR (300)
DECLARE @cmd3 NVARCHAR (300)
DECLARE @dbid INT
DECLARE @MaxId INT
DECLARE @dbName SYSNAME
SET @MaxId = (SELECT MAX(dbid) FROM MASTER.dbo.sysdatabases)
SET @dbid = 1
print " "
print " "
print'DETAIL DE CHAQUE BASE 'print" "print" "
WHILE @dbid <= @MaxId
BEGIN
SET @dbName = (SELECT name FROM MASTER.dbo.sysdatabases WHERE dbid = @dbid)
IF (@dbname IS NOT NULL)
BEGIN
select @cmd3 ='DETAIL DE LA BASE ' + @dbname
print @cmd3
PRINT '************************************************* ********************************************'
print ' '
select @cmd = 'use ' + quotename(@dbname) + ' exec sp_helpfile'
exec (@cmd)
print ' '
print ' '
print 'UTILISATEUR DE LA BASE '+ RTRIM(@dbname)
print '************************************************* ******** '
print ' '
select @cmd1 = 'use ' + quotename(@dbname) + ' exec sp_helpuser'
exec (@cmd1)
PRINT ' '
print ' '
print 'DROITS POUR LES OBJETS DE LA BASE '+ RTRIM(@dbname)
print '************************************************* ******** '
print ' '
select @cmd2 = 'use ' + quotename(@dbname) + ' exec sp_helprotect'
exec (@cmd2)
SET @dbid = @dbid + 1
END
ELSE
SET @dbid = @dbid + 1
print " "
print " "
END
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Apr 25, 2006
I have a transaction table which has Date as datetime field, amount and account number. i want to find out count of checks that were written in a period of 4 days which exceeded i.e. > $400, between 401 and 500, > 501 for a single month. the table has data for more than a year and i want the results then grouped in monthly format like in
OCT between 300 & 400 #30 (30 customers gave checks total worth $300-$400 within any 4 consecutive days period in the month of OCT )
between 400 & 500 # 20
> 501 # 10
NOV between 300 & 400 #30
between 400 & 500 # 20
> 501 # 10
and so on for a 6 month period.
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Apr 26, 2006
Hi there!
I've a table with a nvarchar(max) column on Filegroup2. While inserting a lot of big datas (Word documents, each 2.5MB), the primary filegroup is growing - but the Filegroup2 remains still on its creation size.
Is that a bug? By the way, i ve dropped the table and recreated on the other filegroup, after that i've restartet the SQL 2005 Service.
Someone experience?
Thanks, Torsten
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Feb 27, 2007
Hey guys, I had purchased a program that generates full operational asp.net pages from an access db. I was unfamiliar with the language, and so that was the route I took. After disecting it and studying I've learned a bit and made it work in my environment. However, I now need to migrate everything over to mssql. I got the db portion down and now I'm trying to modify my scripts to point to a sql db rather than an access db. I thought it was going to be relatively simple but it's proving to be quite a challenge for me.Was wondering if anyone could check my work.
The original access driven page had the following connection strings.vb page had [ public strConn as string="PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA SOURCE=" & Server.MapPath("../") & "/db/db.mdb"end class]and in my aspx. pages I hadAccessDataSourceControl1.selectcommand="SELECT * FROM table "AccessDataSourceControl1.ConnectionString = strConn
My new page now has the following.I got rid of the .vb page and put this in.
Dim myConnection as New SqlConnection("Server=mysqlserver;Database=db;UID=myusername;PWD=my pw;")
Const strSQL as String ="SELECT * FROM table"
Dim myCommand as New SqlCommand(strSQL, myConnection)
further down I have a wmx data grid. I'm assuming I don't need to touch that but there is a line that has,
<wmx:AccessDataSourceControl id="AccessDataSourceControl1" runat="server" ></wmx:AccessDataSourceControl>
and I don't know what the equivilant of that is. I know its pointing to the accessdatasoucrcontrol1 that has the select command, but what would be the equivilant ofwmx:accessdatasourcecontrol?Also, is this the way to go? by that i mean, should I just rescript everything? Also,
1) Am I connecting to the sql db properly? 2) some sites say I have to put a connection string in the web.config file, is that true?3) Does any one have any references I can goto, I'm having some trouble finding a good article that lays down exactly what needs to go where in an sql asp.net environment.
Thanks guys.
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Feb 27, 2008
I added one crummy column to my table. I updated the stored procedure and added the thing to the aspx page which is my form for adding an article. I have a strong feeling that something is foul over here...Why is it that Visual Studio will not allow me to capitalize the word get and when I delete the () after ShortDesc they immediatlye reappear and the get statement is set to get. Every other one of them, and there are 9 others use GET and there is no () after the public property variable name. Does anyone know the reason for this?
Public Property Author As System.String
GETReturn _Author
End Get Set(ByVal Value As System.String)
_Author= ValueEnd Set
End PropertyPublic Property ShortDesc() As System.String
GetReturn _ShortDesc
End GetSet(ByVal value As System.String)
End Set
End Property
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Oct 22, 1998
I am beginning to write stored procedures for an application which is to be written in VB5. The stored procedures will be written in 6.5 but when the system goes live, we hope to upgrade to SQL server 7
What I want to know is what changes will I have to make to the stored procedures when I upgrade to 7.0?
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Feb 23, 2004
I've created an alias of my computer name
with the Network client utility
Computer name : SCG59730
Instance name : Mercure
Alias : MyProject
When I try to register this new server (MyProjectMercure)
SQL Server doesn't find the server
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Oct 16, 2006
I have a 3 data flows with an oledb source, a script component and a sql server destination that reports success and that it wrote the rows to the table in question. However, the rows are not written to the SQL Server 2005 table that is the destination. I have many other data flows in the same package that work exactly the same way that insert the rows they should insert in the destination table.
An example of the message I get indicating success is as follows:
[DTS.Pipeline] Information: "component "SQL Server Destination" (75)" wrote 289 rows.
Has anyone else seen this behavior or have an idea what might be wrong? Why would the data flow report success when the rows were not, in fact, inserted in the destination table?
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Nov 14, 2006
Hello,
We're trying to launch a SSIS package throw a webservice. This WebService loads a configuration file with "myPackage.ImportConfigurationFile(pathConfig)" and assigns values to some variables with "myPackage.Variables.Item(Parameters.Keys.Item(i)).Value = Parameters.Item(i)". Seems to work.
I we execute the webmethod of the WebService, this works but only when we execute first time, the SSIS finished succesfully. But when we execute a second time the Webmethod, we've a lot of failure with messages:
The result of the expression "@[User::Email]" on property "ToLine" cannot be written to the property. The expression was evaluated, but cannot be set on the property.The result of the expression ""The Import of " + @[User::ExcelFile]+ " is successful"" on property "MessageSource" cannot be written to the property. The expression was evaluated, but cannot be set on the property.
Thx for your help
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Mar 25, 2008
Hi guys,
acutally i have setup a Disaster Recovery plan for my database.. i m taking a full back once in a week,. i dont' know when i right click on the job and trying to check the view history option to check when was last backup has been taken, it's showing nothing..but when i check on acutall location the backup was taken there.. i don't know y it's not writing any info in view history table.. or is it clear once in a week and i cann't see that...
Can any one tell's me about this...
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Sep 26, 2006
ok. the problem: some tables are empty, so i can't be sure why some are updating at the DB and some arent.
I have manually picked thru every line of the xml that i'm reading into the dataset here, and it is fine, data is all valid and everything.
the tables i'm most worried about are bulletins and surveys, but they all have to be imported from my upload, the code steps thru just fine and I've been thru it a million times. Did I miss something in my dataadapter configuration?. 'daBulletin ' Me.daBulletin.ContinueUpdateOnError = True Me.daBulletin.DeleteCommand = Me.SqlDeleteCommand17 Me.daBulletin.InsertCommand = Me.SqlInsertCommand17 Me.daBulletin.SelectCommand = Me.SqlSelectCommand25 Me.daBulletin.TableMappings.AddRange(New System.Data.Common.DataTableMapping() {New System.Data.Common.DataTableMapping("Table", "tblBulletin", New System.Data.Common.DataColumnMapping() {New System.Data.Common.DataColumnMapping("BulletinID", "BulletinID"), New System.Data.Common.DataColumnMapping("ContractID", "ContractID"), New System.Data.Common.DataColumnMapping("Msg_Type", "Msg_Type"), New System.Data.Common.DataColumnMapping("DatePosted", "DatePosted"), New System.Data.Common.DataColumnMapping("Subject", "Subject"), New System.Data.Common.DataColumnMapping("B_Body", "B_Body"), New System.Data.Common.DataColumnMapping("I_Read_It", "I_Read_It"), New System.Data.Common.DataColumnMapping("DateRead", "DateRead")})}) Me.daBulletin.UpdateCommand = Me.SqlUpdateCommand16
here is my merge function: Private Function Merge(ByVal sFilename As String, ByVal User As String) As String
Dim connMerge As New SqlConnection(ConnectionString)
Dim dsNew As New dsBeetleTracks
Dim dsExisting As New dsBeetleTracks
Dim strResult As String
SetConnections(connMerge)
Dim idc As New System.Security.Principal.GenericIdentity(User)
Dim currentUser As BeetleUser = bu
dsNew.ReadXml(sFilename)
If currentUser.IsInRole("Admin") Or currentUser.IsInRole("QA") Then
If dsNew.tblBulletin.Count > 0 Then
daBulletin.Fill(dsExisting.tblBulletin)
dsExisting.Merge(dsNew.tblBulletin)
strResult += daHelipads.Update(dsExisting.tblBulletin).ToString + " Bulletins updated<br>"
End If
End If
If dsNew.tblHours.Count > 0 And (currentUser.IsInRole("Survey") Or currentUser.IsInRole("Admin")) Then
daHours.Fill(dsExisting.tblHours)
dsExisting.Merge(dsNew.tblHours)
strResult += daHours.Update(dsExisting.tblHours).ToString + " hours updated<br>"
End If
If dsNew.tblHeliPads.Count > 0 Then
daHelipads.Fill(dsExisting.tblHeliPads)
dsExisting.Merge(dsNew.tblHeliPads)
strResult += daHelipads.Update(dsExisting.tblHeliPads).ToString & " helipads updated "
End If
If dsNew.tblExpenses.Count > 0 Then
daExpenses.Fill(dsExisting.tblExpenses)
dsExisting.Merge(dsNew.tblExpenses)
strResult += daExpenses.Update(dsExisting.tblExpenses).ToString + " expenses updated<br>"
End If
If dsNew.tblPersons.Count > 0 And (currentUser.IsInRole("Survey") Or currentUser.IsInRole("FB") Or currentUser.IsInRole("Heli-burn")) Then
daPersons.Fill(dsExisting.tblPersons)
dsExisting.Merge(dsNew.tblPersons)
strResult += daPersons.Update(dsExisting.tblPersons).ToString + " persons updated<br>"
End If
If currentUser.IsInRole("Field") Then
daSurveys.SelectCommand.CommandText = "exec Surveys_Field_Select"
daSurveys.InsertCommand.CommandText = "exec Surveys_Field_Insert"
daSurveys.UpdateCommand.CommandText = "exec Surveys_Field_Update"
End If
If dsNew.tblSurveys.Count > 0 And (currentUser.IsInRole("Survey") Or currentUser.IsInRole("Field")) Then ' Or CurrentUser.IsInRole("Admin")) Then
daSurveys.Fill(dsExisting.tblSurveys)
dsExisting.Merge(dsNew.tblSurveys)
strResult += daSurveys.Update(dsExisting.tblSurveys).ToString + " surveys updated<br>"
End If
If dsNew.tblSurveyChecks.Count > 0 And (currentUser.IsInRole("QA") Or currentUser.IsInRole("Admin")) Then
daSurveyChecks.Fill(dsExisting.tblSurveyChecks)
dsExisting.Merge(dsNew.tblSurveyChecks)
strResult += daSurveyChecks.Update(dsExisting.tblSurveyChecks).ToString + " survey checks updated<br>"
End If
If dsNew.tblTreatments.Count > 0 And (currentUser.IsInRole("FB") Or currentUser.IsInRole("Heli-burn")) Then ' Or CurrentUser.IsInRole("Admin")) Then
daTreatments.Fill(dsExisting.tblTreatments)
dsExisting.Merge(dsNew.tblTreatments)
strResult += daTreatments.Update(dsExisting.tblTreatments).ToString + " treatments updated<br>"
End If
If dsNew.tblInternalQC.Count > 0 And (currentUser.IsInRole("FB") Or currentUser.IsInRole("Heli-burn") Or currentUser.IsInRole("Survey")) Then ' Or CurrentUser.IsInRole("Admin")) Then
daInternalQC.Fill(dsExisting.tblInternalQC)
dsExisting.Merge(dsNew.tblInternalQC)
strResult += daInternalQC.Update(dsExisting.tblInternalQC).ToString + " internalqc updated<br>"
End If
If dsNew.tblTreatmentChecks.Count > 0 And (currentUser.IsInRole("QA") Or currentUser.IsInRole("Admin")) Then
Try
daTreatmentChecks.Fill(dsExisting.tblTreatmentChecks)
dsExisting.Merge(dsNew.tblTreatmentChecks)
strResult += daTreatmentChecks.Update(dsExisting.tblTreatmentChecks).ToString + " treatment checks updated<br>"
Catch dbex As DBConcurrencyException
strResult += vbCrLf & dbex.Message
For x As Integer = 0 To dbex.Row.Table.Columns.Count - 1
strResult += vbCrLf & dbex.Row.GetColumnError(x)
Next
End Try
End If
If dsNew.tblHeliPiles.Count > 0 And (currentUser.IsInRole("Heli-burn")) Then ' Or CurrentUser.IsInRole("Planner")CurrentUser.IsInRole("QA") Or CurrentUser.IsInRole("Admin") Or
daHeliPiles.Fill(dsExisting.tblHeliPiles)
dsExisting.Merge(dsNew.tblHeliPiles)
strResult += daHeliPiles.Update(dsExisting.tblHeliPiles).ToString + " piles updated<br>"
End If
If dsNew.tblHeliCycles.Count > 0 And (currentUser.IsInRole("Heli-burn")) Then ' CurrentUser.IsInRole("Planner") Or Or CurrentUser.IsInRole("Admin")) Then
daHeliCycles.Fill(dsExisting.tblHeliCycles)
dsExisting.Merge(dsNew.tblHeliCycles)
strResult += daHeliCycles.Update(dsExisting.tblHeliCycles).ToString + " cycles updated<br>"
End If
If dsNew.tblHeliTurns.Count > 0 And (currentUser.IsInRole("Heli-burn")) Then 'CurrentUser.IsInRole("Admin") Or CurrentUser.IsInRole("Planner") Or
daHeliTurns.Fill(dsExisting.tblHeliTurns)
dsExisting.Merge(dsNew.tblHeliTurns)
strResult += daHeliTurns.Update(dsExisting.tblHeliTurns).ToString + " turns updated<br>"
End If
If dsExisting.HasChanges Then
dsExisting.Merge(dsNew)
End If
dsExisting.AcceptChanges()
'duh.
'If dsNew.HasChanges Then
' dsNew.AcceptChanges()
'End If
If dsExisting.HasErrors Then
Dim bolError As Boolean
Dim tempDataTable As DataTable
bolError = True
strResult += "<br>"
For Each tempDataTable In dsExisting.Tables
If (tempDataTable.HasErrors) Then
strResult += PrintRowErrs(tempDataTable)
End If
Next
End If
dsNew.Dispose()
dsExisting.Dispose()
connMerge.Close()
'edebugging will only track strresult
Dim fsError As New FileStream(Server.MapPath("./incoming/error.txt"), FileMode.Create, FileAccess.Write)
Dim swError As New StreamWriter(fsError)
swError.WriteLine("--==ERROR LOG==--")
swError.WriteLine(Now.Date.ToShortDateString)
swError.WriteLine("-----------------")
swError.WriteLine(strResult)
swError.Close()
fsError.Close()
Return strResult
End Function
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Jul 3, 2007
SS 2005 64Bit SP2 Hello Chaps Intermittent problem with the SQL Agent job history not getting written to the history table. Background:Today we noticed the account SQL Agent runs under cropping up in sp_who2. A quick check of the activity monitor said nothing was running. We ran a trace and, based on the SQL being executed, had a word with one of the developers who confirmed they had manually executed one of the jobs. There was no record anywhere that the job had run. There has been an issue with this particular job, when executed by this user, not showing up in history before but, as mentioned, this had been intermittent and we thought that a restart of the service had sorted it. Stuff run to try to track the job:EXEC sp_help_jobactivity @job_name = 'MyJob' EXEC sp_help_jobhistory @job_name = 'MyJob' SELECT *FROM dbo.sysjobhistory WHERE job_id = 'MyJob GUID'The first returned a row with no details in the columns indicating activity (e.g. last_executed_step_date and other columns were null). sp_help_jobhistory had some historical records but nothing since mid last month. sysjobhistory correlated with sp_help_jobhistory as you would expect. Right clicking the job in SSMS and viewing history correlated with sp_help_jobhistory (i.e. some records but nothing since mid-June). We edited the SQL in the job step and got the developer to rerun the job and, typically, everything appeared as it should in all the above result sets.Obviously this is tricky to track down since it has been intermittent but does anyone recognise anything that I have described above? I have of course googled but there doesn't really seem to be anything about it. We have considered there may be a problem in MSDB and may try running CHECKDB to see if anything comes up but somehow I doubt it will. Ta!
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