Limit To Number Of Connections To The SQLCLR?
Oct 5, 2006Is there a limit to the number of connections that can be made to the SQLCLR? If so, what is that limit and is it adjustable?
Thanks!
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Sql Server Limit Max Number Of Connections
Feb 15, 2008Does sql server limit max number of connections, or max connections open from a given source, or over a given time period?
View 3 Replies View RelatedConnections Limit?
Dec 27, 2004Hi,
I have an application with a DAL that has an interface with SQL Server.
The application has 400 users that open the web forms.
My question is:
Is there a limit of the parallel connections that can be opened? Or the IIS is managing all the access to the DB? Should I worry about the performance Or it's normal behaviour for ASP.NET applications?
Thanks
Limit To Connections In Sql Express 05?
Dec 22, 2006If I deploy a database to the web using sql express 05 is there a limit to the number of connections that can be made on it? I have read posts stating that but cant find any documentation from MSFT that supports that idea. I just know that it has a limit of a db size to 4 gigs.
Thanks!
Concurrent Connections Limit
May 18, 2008
Hi,
I read that there's a "tecnical" limit of 32767 concurrent connections for SQL 2005 Express, and that SQL 2005 Express uses only 1GB of memory. So, what's the number of practical concurrent connections SQL 2005 Express can handle? Is it 200 ,300, 0r 400...? How much memory is consumed by every connection?
Thanks in Advance.
Problems Of Remote Connections For Creating A SQLCLR Project In SQL Server Express-ADO.NET 2.0-VB 2005 Express Via Network/LAN
Sep 19, 2007Hi all,
In my office computer network system (LAN), my Windows XP Pro PC has SQL Server Express and VB 2005 Express installed and I was granted to have the Administrator priviledge to access SQL Server Express. I tried to create a SQLCLR project in my terminal PC.
1) I tried to set up a remote connection to SQL Server Express in the following way: SQL Server EXpress => SQL Server Surface Area Configuration. In the Surface Area Configuration for Service and Connection - local, I clicked on Remote Connection of Database Engine, SQLEXPRESS and I had a "dot" on "Local and remote connections" and "Using TCP/IP only". Then I clicked on "Apply" and "OK" buttons. Then I went to restart my database engine in SQL Server Management. When I went to check SQL Server 2005 Surface Area Configuration, I saw the arrow is pointing to "Service", not to "Remote Connections"!!!??? Is it right/normal? Please comment on this matter and tell me how I can have "Remote Connecton" on after I selected it.
2) After I restarted the database engine (I guess!!), I executed the following project code (copied from a book) in my VB 2005 Express:
//////////////--Form9.vb---/////////////////
mports System.Data.SqlClient
Imports System.Data
Public Class Form9
Dim cnn1 As New SqlConnection
Private Sub Form5_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Compute top-level project folder and use it as a prefix for
'the primary data file
Dim int1 As Integer = InStr(My.Application.Info.DirectoryPath, "bin")
Dim strPath As String = Microsoft.VisualBasic.Left(My.Application.Info.DirectoryPath, int1 - 1)
Dim pdbfph As String = strPath & "northwnd.mdf"
Dim cst As String = "Data Source=.sqlexpress;" & _
"Integrated Security=SSPI;" & _
"AttachDBFileName=" & pdbfph
cnn1.ConnectionString = cst
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Create a command to create a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "CREATE TABLE FromExcel (" & _
"FirstName nvarchar(15), " & _
"LastName nvarchar(20), " & _
"PersonID int Not Null)"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'Create a command to drop a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "DROP TABLE FromExcel"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'Declare FromExcel Data Table and RowForExcel DataRow
Dim FromExcel As New DataTable
Dim RowForExcel As DataRow
FromExcel.Columns.Add("FirstName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("LastName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("PersonID", GetType(SqlTypes.SqlInt32))
'Create TextFieldParser for CSV file from spreadsheet
Dim crd1 As Microsoft.VisualBasic.FileIO.TextFieldParser
Dim strPath As String = _
Microsoft.VisualBasic.Left( _
My.Application.Info.DirectoryPath, _
InStr(My.Application.Info.DirectoryPath, "bin") - 1)
crd1 = My.Computer.FileSystem.OpenTextFieldParser _
(My.Computer.FileSystem.CombinePath(strPath, "Book1.csv"))
crd1.TextFieldType = Microsoft.VisualBasic.FileIO.FieldType.Delimited
crd1.Delimiters = New String() {","}
'Loop through rows of CSV file and populate
'RowForExcel DataRow for adding to FromExcel
'Rows collection
Dim currentRow As String()
Do Until crd1.EndOfData
Try
currentRow = crd1.ReadFields()
Dim currentField As String
Dim int1 As Integer = 1
RowForExcel = FromExcel.NewRow
For Each currentField In currentRow
Select Case int1
Case 1
RowForExcel("FirstName") = currentField
Case 2
RowForExcel("LastName") = currentField
Case 3
RowForExcel("PersonID") = CInt(currentField)
End Select
int1 += 1
Next
int1 = 1
FromExcel.Rows.Add(RowForExcel)
RowForExcel = FromExcel.NewRow
Catch ex As Microsoft.VisualBasic.FileIO.MalformedLineException
MsgBox("Line " & ex.Message & _
"is not valid and will be skipped.")
End Try
Loop
'Invoke the WriteToServer method fo the sqc1 SqlBulkCopy
'object to populate FromExcel table in the database with
'the FromExcel DataTable in the project
Try
cnn1.Open()
Using sqc1 As SqlBulkCopy = New SqlBulkCopy(cnn1)
sqc1.DestinationTableName = "dbo.FromExcel"
sqc1.WriteToServer(FromExcel)
End Using
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
'Read the FromExcel table and display results in
'a message box
Dim strQuery As String = "SELECT * " & _
"FROM dbo.FromExcel "
Dim str1 As String = ""
Dim cmd1 As New SqlCommand(strQuery, cnn1)
cnn1.Open()
Dim rdr1 As SqlDataReader
rdr1 = cmd1.ExecuteReader()
Try
While rdr1.Read()
str1 += rdr1.GetString(0) & ", " & _
rdr1.GetString(1) & ", " & _
rdr1.GetSqlInt32(2).ToString & ControlChars.CrLf
End While
Finally
rdr1.Close()
cnn1.Close()
End Try
MessageBox.Show(str1, "FromExcel")
End Sub
End Class
//////////////////////////////////////////////////////////////////////////////
I got the following error messages:
SecurityException was unhandled
Request for the permission of type 'System. Security. Permissions.FileIOPermission,mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'failed that is pointing to the code statement "Dim int1 As Integer = InStr (My.Application.Info.DirectoryPath, "bin")."
Troubleshooting tips:
Store application data in isolated storage.
When deploying an Office solution, check to make sure you have fulfilled all necessary requirments.
Use a certificate to obtain the required permission(s).
If an assembly implementing the custom security references other assemblies, add the referenced assemblies to the full trust assembly list.
Get general help for the exception.
I am a new Microsoft VS.NET Express user to do the SQL Server 2005 Express and VB 2005 Express programming by using the example of a tutorial book. Please help and tell me what is wrong in my SQLCLR sep-up and project coding and how to correct the problems.
Many Thanks in advance,
Scott Chang
Maximum Limit For Connections Has Been Reached
Mar 23, 2001We have been running SQL Server 7 for the past 6 months, with no problems at all. All of a sudden, we have received the error message 17050, that the maximum limit for connections has been reached. We cannot now start Enterprise Manager or do anything. We have tried fiddling with licencing in control panel but to no avail. Does anyone have any idea why this has suddenly happened? Any tips would be great!
Cheers.
Setup And Upgrade :: Enable User Connections Limit Per Microsoft Database
Jun 26, 2015How does one enable sql connections limits for user connections per new and existing databases? how to do it on whole server per database but not set a limit per user.Looks like this must be run on each databases but what if you have 100s of databases:
USE AdventureWorks2012 ;
GO
EXEC sp_configure 'show advanced options', 1;
GO
RECONFIGURE ;
GO
EXEC sp_configure 'user connections', 325 ;
GO
RECONFIGURE;
GO
Limit On Number Of Records
Apr 21, 2008is there a limitations of number of records that shows in the table when you use show data table?
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Is there an equivalent in MS-SQL that will let me do a quick Select clause and tell it how many rows to return.
In other words if I just wanted to see the first 10 rows what would I add to Select * from tableA
Thanks!
Is There A Limit In The Number Of Rows To Plot
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Here's my problem.
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Nov 14, 2006Processing Association Rules model on SQL 2005 Standard edition produced following error:
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Mar 21, 2007HI all !
I am having a bit of a problem trying to limit a number of columns in a matrix appearing on a page.
At the moment, I have a dataset that lists the month and the mail packages that were sent during the month
The matrix works great HOWEVER, if there were more than 8 months in the matrix columns, it does not break and would make the page look like a huge landscape page.
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Thanks!
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Limit Of Number Of Rows In A Table ?
Jun 28, 2007Is there a limit of how many rows a table can have in SQL compact Edition? I didn't find anything in the documentation, but I get regularly a funny error message "Expression evaluation caused an overflow. [ Name of function (if known) = ]" when I try to create record number 32768 (is equal to 2 to the power of 15).
Where is this limit documented ?
Code Snippet
const string connectionString = "Data Source='" + dbFileName + "'; Max Database Size = 4091; temp file max size = 4091";
using (SqlCeEngine testEngine = new SqlCeEngine(connectionString)) {
testEngine.CreateDatabase();
}
using (SqlCeCommand addMValuesTableComand = testDbConnection.CreateCommand()) {
addMValuesTableComand.CommandText = "CREATE TABLE MValues (MSerieId int, TimeStamp smallint, Value real, PRIMARY KEY(MSerieId, TimeStamp))";
addMValuesTableComand.ExecuteNonQuery();
}
//fill table
StatusLabel.Text = "fill MValues Table";
using (SqlCeCommand fillTableComand = testDbConnection.CreateCommand()) {
int i = 0;
try {
int iterationCount = (int)RecordsCountNumericUpDown.Value;
ProgressBar.Value = 0;
ProgressBar.Maximum = iterationCount;
for (i = 0;i < iterationCount;i++) {
fillTableComand.CommandText = "INSERT MValues VALUES (1, " + i.ToString() + ", " + (i/100.0).ToString() + ")";
fillTableComand.ExecuteNonQuery();
ProgressBar.Value = i+1;
}
} catch (Exception ex) {
ErrorTextBox.Text = "Error occured" + Environment.NewLine +
"Iterations: " + i.ToString() + Environment.NewLine +
"Error Message: " + ex.ToString();
}
}
Limit Number Of Bars On Bar Chart
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Feb 11, 2004hI,
I am using visual c# 2003 and sqlserver 2000 and i am trying to query a column in the sql server and store it into a dataset but i got an error msg:
The number of rows for this query will output 90283 rows.
--------------------------------------------------------------------------------
Query :
SELECT L_ExtendedPrice, COUNT (*) AS Count FROM LINEITEM GROUP BY L_ExtendedPrice ORDER BY Count DESC";
---------------------------------------------------------------------------------
Error msg :
An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll
Additional information: System error.
----------------------------------------------------------------------------------
is there a limit to the number of rows a dataset can store?
How To Limit Number Of Rows Showing Each Page?
Dec 17, 2006Hi All,
i couldn't find how to set up the number of rows displaying on each page?
i wanna each page display 20 rows.
Thanks
Nick
Any Limit On Number Of Characters For FLATFILE Connection ?
Jul 23, 2007Any one knows for sure if there is any limit on the number of characters/letters that a FLATFILE connection manager can maximally have?
Is the following name (36 letters) valid ?
Code Snippet
<DTS:Property DTS:Name="ObjectName">Load Ready Output Connection Manager</DTS:Property>
Multi Value Parameter - Limit Number Of Selections
Jun 12, 2007Hello
Anyone know if it is possible to limit the number of selections in a multi value parameter? Eg: There are 50 values in the drop down combo, but I want the user to be able to select a maximum of 10?
Cheers
What Is The Limit Number Of SQL Mobile Databases Per Application?
Feb 28, 2008Hi There,
I would like to know what the recommended Number of Sql Mobile Databases Per Application?
I appreciate any response!
Thanks!
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Query
SELECT @SQLTier1Select = 'SELECT * FROM dbo.UDV_Tier1Accounts WHERE CUSTOMER IN (SELECT CUSTOMERNUMBER FROM dbo.UDF_GetUsersCustomers(' + CAST(@UserID AS VARCHAR(4)) + '))' + @Criteria + ' AND (number IN (SELECT DISTINCT ph1.number FROM Collect2000.dbo.payhistory ph1 LEFT JOIN Collect2000.dbo.payhistory ph2 ON ph1.UID = ph2.ReverseOfUID WHERE (((ph1.batchtype = ''PU'') OR (ph1.batchtype = ''PC'')) AND ph2.ReverseOfUID IS NULL)) OR code IN (SELECT DISTINCT StatusID FROM tbl_APR_Statuses WHERE SearchCategoryPaidPaymentsT1 = 1))'
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May 7, 2008Does SQL Server 2005 Workgroup Edition have a limit to the number of user logins I can make?
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thanks
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