[ask] How To Append String To The Previous Select Statement Bounded To Gridview
i have a case :
i'm using a select statement with SqlCommand and save the results in the SQLDataAdapter
and using the data table I post the result to the gridview and show it there....
my question is what should I do to append string to the SQL Command??
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How can I get the UserID to pass to the sql statement? The date is being passed but nothing else Thank you. My code:Public Function GetEmployeeByID(ByVal Today As Date, ByVal UserID As String) As SqlDataReaderDim dtToday As DateTime dtToday = DateTime.Today 'Create connectionDim con As New SqlConnection(_connectionString) 'Create commandDim cmd As SqlCommand = New SqlCommand()With cmd .Connection = con .CommandText = "SELECT UserID FROM ATTTblAttendance WHERE UserID = @UserID And Today = " & dtToday" -->The UserID no showing up here .CommandType = CommandType.Text 'Add Parameters.Parameters.AddWithValue("@UserID", UserID) .Parameters.AddWithValue("@Today", Today) End With 'Return DataReader con.Open()Return cmd.ExecuteReader() End Function
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Transaction Count After EXECUTE Indicates That A COMMIT Or ROLLBACK TRANSACTION Statement Is Missing. Previous Count = 1, Current Count = 0.
With the function below, I receive this error:Error:Transaction count after EXECUTE indicates that a COMMIT or ROLLBACK TRANSACTION statement is missing. Previous count = 1, current count = 0.Function:Public Shared Function DeleteMesssages(ByVal UserID As String, ByVal MessageIDs As List(Of String)) As Boolean Dim bSuccess As Boolean Dim MyConnection As SqlConnection = GetConnection() Dim cmd As New SqlCommand("", MyConnection) Dim i As Integer Dim fBeginTransCalled As Boolean = False 'messagetype 1 =internal messages Try ' ' Start transaction ' MyConnection.Open() cmd.CommandText = "BEGIN TRANSACTION" cmd.ExecuteNonQuery() fBeginTransCalled = True Dim obj As Object For i = 0 To MessageIDs.Count - 1 bSuccess = False 'delete userid-message reference cmd.CommandText = "DELETE FROM tblUsersAndMessages WHERE MessageID=@MessageID AND UserID=@UserID" cmd.Parameters.Add(New SqlParameter("@UserID", UserID)) cmd.Parameters.Add(New SqlParameter("@MessageID", MessageIDs(i).ToString)) cmd.ExecuteNonQuery() 'then delete the message itself if no other user has a reference cmd.CommandText = "SELECT COUNT(*) FROM tblUsersAndMessages WHERE MessageID=@MessageID1" cmd.Parameters.Add(New SqlParameter("@MessageID1", MessageIDs(i).ToString)) obj = cmd.ExecuteScalar If ((Not (obj) Is Nothing) _ AndAlso ((TypeOf (obj) Is Integer) _ AndAlso (CType(obj, Integer) > 0))) Then 'more references exist so do not delete message Else 'this is the only reference to the message so delete it permanently cmd.CommandText = "DELETE FROM tblMessages WHERE MessageID=@MessageID2" cmd.Parameters.Add(New SqlParameter("@MessageID2", MessageIDs(i).ToString)) cmd.ExecuteNonQuery() End If Next i ' ' End transaction ' cmd.CommandText = "COMMIT TRANSACTION" cmd.ExecuteNonQuery() bSuccess = True fBeginTransCalled = False Catch ex As Exception 'LOG ERROR GlobalFunctions.ReportError("MessageDAL:DeleteMessages", ex.Message) Finally If fBeginTransCalled Then Try cmd = New SqlCommand("ROLLBACK TRANSACTION", MyConnection) cmd.ExecuteNonQuery() Catch e As System.Exception End Try End If MyConnection.Close() End Try Return bSuccess End Function
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Go Not Work Within A Line String Of Sql Statement?...
Hi: the following is my TSQL command of a job(after passing databaseName, I don't want multiple steps, just with 1 step) --=================================== BACKUP DATABASE ABC To Backup_ABC_1 with init, name = 'Backup of 1(M, W, F ) Job_ABC_1Mon' go backup log ABC with truncate_only go print 'shrinkdatabase begin-- ' dbcc checkdb(ABC) go dbcc shrinkdatabase(ABC, 10) Issue: with 3 'go' inside the whole line, execution failed. after replace 'go' with 'begin' and 'end' for each sql statemet, the execution works. Someone could explain why 'go' as a batch does not work in this situation? also, is this a good practice to 1. truncate_only 2. dbcc checkdb 3. shrinkdatabase after a daily backup? thanks David
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Sql Statement Comma Separated String
I have a table called evidence, which has the following Fields | evidence_id | Description| Standards| E001 blagh 1.1,1.2,1.3 Ok I am trying to search the comma-separated string in the standards field using the like clause so I can display the evidence_id. SQL looks like SELECT Evidence.Standards, * FROM Evidence WHERE (((Evidence.Standards) Like '%1.1%')); However it will not search through the list and select for example if I change 1.1 to 1.2. The commas wont allow it. It works if I just have one item in the list that is just 1.1. Can anyone help me to search a comma-separated string for a certain string? Thanks Asylum
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Like Statement Is Not Working When I Pass A String
Hi, I have a textbox,in which I am allowing user to write the username starting with,user should enter minimum 3 characters, atleast,and when they enter that information, all the names starting with those 3 characters shouls be shown.can any one help me in this. my query is: "select username from registration where username like '" + TextBox1.Text + "%'"; It is working with one char,but if I write more than one character in the textbox,it is not creating any error but it is not returning the result.
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