Tables Not Being Written Back To DB From Dataset. I'm Going Nutz!
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
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Hello everybody,
I have a dataset that i read from an xml file.
I need to import this database back in to sql..
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Thanks
Chris
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Ex.System.Int32 bum = System.Convert.ToInt32(Request.QueryString["dum"]);
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comm.Connection = conn;SqlDataAdapter myadapter = new SqlDataAdapter(comm);DataSet myset = new DataSet();
conn.Open();
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myset.AcceptChanges();
Can yo usee the problem???
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Sep 7, 2006
I'm new at this so I apologize in advance for my ignorance.
I'm creating a website that collects dates in a calendar control (from Peter Blum). When the page containing the control loads it populates the calendar with dates from the database (that have previously been selected by the user). The user then can delete existing dates and/or add new dates.
I create a dataset when the page loads and use it to populate the calendar. When the user finishes adding and deleting dates in the calendar control I delete the original dates from the dataset and then write the new dates to the dataset. I then give execute the data adapter update command to load the contents of the dataset back into the database. This command involves using parameterized queries. For example the Insert command is:
Dim cmdInsert As SqlCommand = New SqlCommand("INSERT INTO Requests VALUES(@fkPlayerIDNumber, @RequestDate, @PostDate, @fkGroupID)", conn)
cmdInsert.Parameters.Add(New SqlParameter("@fkPlayerIDNumber", SqlDbType.Int))
cmdInsert.Parameters.Add(New SqlParameter("@RequestDate", SqlDbType.DateTime))
cmdInsert.Parameters.Add(New SqlParameter("@PostDate", SqlDbType.DateTime))
cmdInsert.Parameters.Add(New SqlParameter("@fkGroupID", SqlDbType.Int))
da.InsertCommand = cmdInsert
The update command is:
da.Update(ds, "Requests")
When I run the program I get the following error:
Parameterized Query '(@fkPlayerIDNumber int,@RequestDate datetime,@PostDate datetime,' expects parameter @fkPlayerIDNumber, which was not supplied.
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Hi,
I have a stored procedure attached below. It returns 2 rows in the SQL Management studio when I execute MyStorProc 0,28. But in my program which uses ADOHelper, it returns a dataset with tables.count=0.
if I comment out the line --If @Status = 0 then it returns the rows. Obviously it does not stop in
if @Status=0 even if I pass @status=0. What am I doing wrong?
Any help is appreciated.
ALTER PROCEDURE [dbo].[MyStorProc]
(
@Status smallint,
@RowCount int = NULL,
@FacilityId numeric(10,0) = NULL,
@QueueID numeric (10,0)= NULL,
@VendorId numeric(10, 0) = NULL
)
AS
SET NOCOUNT ON
SET CONCAT_NULL_YIELDS_NULL OFF
If @Status = 0
BEGIN
SELECT ......
END
If @Status = 1
BEGIN
SELECT......
END
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Feb 24, 2006
Hi,
I have an application where I'm filling a dataset with values from a table. This table has no primary key. Then I iterate through each row of the dataset and I compute the value of one of the columns and then update that value in the dataset row. The problem I'm having is that when the database gets updated by the SqlDataAdapter.Update() method, the same value shows up under that column for all rows. I think my Update Command is not correct since I'm not specifying a where clause and hence it is using just the value lastly computed in the dataset to update the entire database. But I do not know how to specify a where clause for an update statement when I'm actually updating every row in the dataset. Basically I do not have an update parameter since all rows are meant to be updated. Any suggestions?
SqlCommand snUpdate = conn.CreateCommand();
snUpdate.CommandType = CommandType.Text;
snUpdate.CommandText = "Update TestTable set shipdate = @shipdate";
snUpdate.Parameters.Add("@shipdate", SqlDbType.Char, 10, "shipdate");
string jdate ="";
for (int i = 0; i < ds.Tables[0].Rows.Count - 1; i++)
{
jdate = ds.Tables[0].Rows[i]["shipdate"].ToString();
ds.Tables[0].Rows[i]["shipdate"] = convertToNormalDate(jdate);
}
da.Update(ds, "Table1");
conn.Close();
-Thanks
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Hi,
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regards,
Karen
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--===== Create the test table with
CREATE TABLE #workorder
(
Id varchar(20),
wo varchar(10),
wodate datetime,
amount float
)
GO
CREATE TABLE #revenue
[code].....
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Here's my code
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WHERE [TicketID] = t.TicketID
ORDER BY DateAssigned ASC) = t.TicketID
WHERE (CreatedByUserID NOT IN (SELECT u.UserID FROM Users u
INNER JOIN Profiles p ON u.UserID = p.UserID
[Code] ....
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Aug 23, 2006
Hi,
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Hi,
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I have seen the problem earlier and could not resolved it. Please let me know if any one can help.
Thanks in advance
Rohit
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Main Query:
SELECT Field1, Field2...Field80
From Table1
Join Table2
Union Portion:
Select FieldValue <------
From MAS_CTB
UNION
Select FieldValue <-----Return to main query above
From MAS_STB
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Public Function GetSQLDataSet(ByVal SQL As String) As DataSet
......
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MyDataSet = New DataSet
MySQLDataAdapter = New SqlDataAdapter(MyCommand)
MySQLDataAdapter.Fill(MyDataSet)
......
End function
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How to code a function to return a dataset in which there are two tables and relationship?
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Jul 13, 2007
string fileName = "d:\shiporder.xml";
DataSet dataSet = new DataSet();
dataSet.ReadXML(fileName);
//connection string
string cmd = "INSERT INTO Orders (OrderID, OrderPerson) VALUES (dataSet.Tables[0].Row[0][0].ToString(),dataSet.Tables[0].Row[0][1].ToString);
SqlConnection con = new SqlConnection(conection string);
SqlCommand mycmd = new SqlCommand(cmd,con);
con.Open();
mycmd.ExecuteNonQuery();
con.Close();
it gives me this error
dataSet.Tables its not permitted in this context. valid expression are constants, constant expression, . Columns name are not permitted
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Dec 26, 2007
Hi,
I have a little question. I searched google, and could not find good answer for this one.
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Sep 13, 2007
Hi,
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I have OLE Db data source (SQL Server 2008) with 5 rows. One of the column in claimID. Another data source is IBM DB2 Iseries database. The table in DB2 has 93 million rows. I need to get only rows from DB2 table where ClaimID matces to OLE DB datasource dataset. In fact its just inner join but in two different serves. How do I create new dataset from these two tables in SSIS. I tried using Lookup transformation. I cannot use OLE DB as datasource for DB2.
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Jan 18, 2008
Hi,
I have an issue in generating the report in sql reporting services. I need to display a report in a table format. The datas of the table should be from two different sql tables. I have tried to write a stored procedure that returns two result sets from two different tables. As reporting services takes datas only from the first result set, i tried to write two different stored procedures each displays one result set. Then i have created two datasets with that two different stored procedure. Even then i cannot proceed as i was not able to use two different dataset in a single table because i was setting the datasetname to one dataset, when i try to retrieve the fields from another dataset i was able to retrieve only first and count values. Then i tried using sub reports. As sub reports for a dataregion(table) repeats for every row of the main report i was not able to fetch the correct datas. Atlast i have tried combining the query using join and wrote a single stored procedure. This stored procedure returns a single result set retrieves data from two tables satisfying the conditions. The issue i am facing with this is, the first table has only one row satisfying the condition and the second table has three rows satisfying the same condition, as i am using join query for the three rows returned by the second table the first table datas are getting duplicated for the rest of the rows in the second table. As I found using join query is the only resolution for the output which I need, and also I have to avoid the duplication of the records. Hence let me know for any solutions.
I have shown the sample datas that is duplicating which is indicated as bold. Phonenumber, Attemptdate and calloutcome are from first table and start time and endtime is from second table. As there are three different datas for the second table, first table datas are duplicated
Phone Number
Attempt Date
Call OutCome
Start Time
End Time
843-577-0800
2007-09-10 15:20:00.000
Contact with Prospect - Expressed Interest
15:08
15:12
843-577-0800
2007-09-10 15:20:00.000
Contact with Prospect - Expressed Interest
15:25
15:25
843-577-0800
2007-09-10 15:20:00.000
Contact with Prospect - Expressed Interest
15:26
15:27
Thanks for any help in advance
Thanks,
Sangeethaa
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Feb 20, 2015
I'm looking for the correct syntax to pull back duplicate vendors based on 6 fields from two different tables. I want to actually see the duplicate vendor information (not just a count). I am able to pull this for one of the tables, something like below:
select *
from VendTable1 a
join ( select firstname, lastname
from VendTable1
group by firstname, lastname
having count(*) > 1 ) b
on a.firstname = b.firstname
and a.lastname = b.lastname
I'm running into issues when trying to add the other table with the 4 other fields.
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Jan 2, 2015
Ok I think I will need to use a temp table for this and there is no code to share as of yet. Here is the intent.
I need to insert data into two tables (a header and detail table) the Header Table will give me lets say an order number and this order number needs to be placed on the corresponding detail lines in the detail table.
Now if I were inserting a single invoice with one or more detail lines EASY, just set @@Identity to a variable and do a second insert statement.
What is happening is I will be importing a ton of Invoice headers and inserting those into the header table. The details are already in the database across various tables and and I will do that insert based on a select with some joins. As stated I need to get the invoice number from IDENTITY of the header table for each DETAIL insert.
I am assuming the only way to do this is with a loop... Insert one header, get identity; Insert the detail table and include the IDENTITY variable, and repeat.
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Apr 10, 2007
Hi there,
I have a MS Access database (mdb) containing the following tables:
Crime
Criminal
CrimeCommitted
Hideout
CriminalType
The Criminal table contains information about each criminal and the CrimeCommitted table contains information about the specific crimes. I've written the following query to return only the latest crime committed by each criminal:
Code Snippet
SELECT Criminal.CriminalID, Criminal.Firstname, Criminal.Lastname, Criminal.Nickname, Criminal.Gender, Criminal.DOB, Criminal.Eyes, Criminal.Complexion, Criminal.Weight, Criminal.Height, Criminal.Build, Criminal.Scars, Criminal.Occupation, Criminal.CrimeOrgID, Criminal.IQ, Criminal.Hideout, Criminal.CriminalType, Max(CrimeComitted.Date) AS Last_Crime_Comitted
FROM Criminal INNER JOIN CrimeComitted ON Criminal.CriminalID=CrimeComitted.CriminalID
GROUP BY Criminal.CriminalID, Criminal.Firstname, Criminal.Lastname, Criminal.Nickname, Criminal.Gender, Criminal.DOB, Criminal.Eyes, Criminal.Complexion, Criminal.Weight, Criminal.Height, Criminal.Build, Criminal.Scars, Criminal.Occupation, Criminal.CrimeOrgID, Criminal.IQ, Criminal.Hideout, Criminal.CriminalType;
This query works fine for obtaining the Criminal table data, but once i've include CrimeCommitted.Country in the SELECT statement, the data returned contained all the crimes committed by each criminal (i just need the latest crime).
The query doesn't work when another table, other than Criminal, is selected. How can i obtain the columns in the CrimeCommitted table in this query?
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Sep 12, 2007
Hi All,
We are post-deployment with a serious reporting issue that's causing us to rethink our reporting solution. We're considering moving from what we have to SQL Server Reporting Services (client side).
I have spent the past couple of days getting up to speed on this feature and seeing if we can easily migrate it into our existing application. However, I've hit a couple of stumbling blocks and was hoping perhaps someone here could either tell me the solution or point me in the right direction.
I'm not having any problems creating basic reports (e.g. flat data).
However, I am having problems creating reports where there are related tables in a dataset.
The way it works with our existing solution is that I get a dataset (which contains several data tables) and point it to the report's datasource. That report expects those tables and I have defined table-relationships in the report which process and display the information correctly.
I'm not having as much luck with RDLC.
I can go into futher detail about how I'm creating the report, but let me just ask these general questions first:
1. Can I set a dataset containing multiple datatables equal to a property on an RDLC report and that RDLC report know how to treat and display the data?
2. Is there a better/smarter than this to get a field selection from my datasource (remember, this information is coming from a stored procedure so connecting directly to the database is not an option):
a. In code, populate dataset
b. In code, write dataset schema to xml (e.g. an xsd file)
c. In Visual Studio, add the XSD file to project
d. Use fields from XSD file to drag and drop fields on report
A fancy example would be nice too. I've googled like crazy the past couple of days and downloaded as many samples as I can find (including the ones on ftponline.com, gotreportviewer.com, "Tudor's WebLog", and several others). However, I have yet to find one that uses grouping and related datatables.
Thank you so much (if, for nothing else, reading this post )
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Apr 24, 2007
Hello,I'm trying to create a simple back up in the SQL Maintenance Plan that willmake a single back up copy of all database every night at 10 pm. I'd likethe previous nights file to be overwritten, so there will be only a singleback up file for each database (tape back up runs every night, so each daysback up will be saved on tape).Every night the maintenance plan makes a back up of all the databases to anew file with a datetime stamp, meaning the previous nights file stillexists. Even when I check "Remove files older than 22 hours" the previousnights file still exists. Is there any way to create a back up file withoutthe date time stamp so it overwrites the previous nights file?Thanks!Rick
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May 14, 2015
New to Database Mirroring and I have a question about the Principal database server. I have a Database Mirroring setup configured for High-safety with automatic fail over mode using a witness.
When a fail over occurs because of a lost of communication between the principal and mirror, the mirror server takes on the roll of Principal. When communication is returned to the Principal server, at some point does the database that was the previous Principal database automatically go back to being the Principal server?
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Jun 9, 2015
I need to run two reports each of A5 Size to run back to page and print on single A4 paper means in 1st half Sale bill will be printed and in second half Gate Pass Will Be Printed both report will be on same page and size and shape should be maintained. How to do it.
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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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Jul 20, 2005
Hello,I am hoping you can help me with the following problem; I need to process the following steps every couple of hours in order to keep our Sql 2000 database a small as possible (the transaction log is 5x bigger than the db).1.back-up the entire database2.truncate the log3.shrink the log4.back-up once again.As you may have determined, I am relatively new to managing a sql server database and while I have found multiple articles online about the topics I need to accomplish, I cannot find any actual examples that explain where I input the coded used to accomplish the above-mentioned steps. I do understand the theory behind the steps I just do not know how to accomplish them!If you know of a well-documented tutorial, please point me in the right direction.Regards.
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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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