C# - Convert SqlCommand To T-SQL Command

Oct 15, 2010

I have an SqlCommand with parameters. Due to some external requirement (see PS), I need one T-SQL string instead, i.e., I need ... @parameter ... replaced by ... the-value-of-@parameter-encoded-correctly ... (e.g. O'Brien --> 'O''Brien', 02 Mar 2010 --> '20100302', 3.5 --> 3.5).

I know that I could home-brew such a solution quite easily, but correct escaping is tricky (make sure you get the right date and number formats, watch for quote signs in strings, etc.), and I guess that I'm not the only one needing this, so my question is:

[Code]...

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Convert From String To Numeric In Sql Command Text?

Sep 30, 2009

I have an application where the user and search the database and return the values from it. They can also figure the Average, Median, and the Standard Deviation from it. BUt I have a problem with this since the business rules won't allow the result column to be anything but a string so now I am getting error messages on the Select commnad text since it is trying to perform the calculations. I am wondering if there is a way to convert the values in the command text to a numeric value then perform the calculation. Here is the code I am using at the moment.

[Code]...

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Convert String To Unicode For Command Line?

Jun 1, 2009

I'm using vb6 to invoke a function in a dll with the following argurments (

int argc, _TCHAR* argv[])

in vb6:this is how i call the function in the dll..

String command = "TEST 123 456"
module(3, command)

As you can see, command is of String type.. the parameter needed is _TCHAR*

_TCHAR* is in unicode. How do I convert my String to _TCHAR*??

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Convert User Text Input To Command

Dec 15, 2009

is there a way to accept user input and convert those inputs into command? e.g. i have a textbox that can "test" commands. when i type this into the textbox, it should run the command:

dim a = "asd"
msgbox(a & "fg")

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Remove Double Quotes (convert A String Into A VC Command)?

Nov 14, 2010

User enter a command like 2+2 and instead of displaying 2+2 in the designated textbox 4 appears.

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Run 2 SqlCommand Together?

Jan 17, 2012

[code]...

Is this possible to run 2 SqlCommand together??

Because after executed somehow the 2nd inside the loop did not execute or insert data.

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Sql :: Get SqlCommand ExecuteNonQuery Result?

Aug 29, 2011

In order to check if specific user is db_owner, i excute the following query:

"select is_rolemember('db_owner', '" & p_userName & "')"

using the SqlCommand ExecuteNonQuery method.How do I get the query result?

Here is my code:
Dim com As SqlCommand = New SqlCommand(sql, m_connection)
com.ExecuteNonQuery()

[code].....

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Sqlcommand Parameters Not Executing?

Aug 13, 2010

I am encountering a strange problem when attempting to execute a DELETE query agains a SQL Server table using VB.NET, SQL Command, and Parameters.

I have the following code:

Try
sqlCommand.Transaction = transaction1
sqlCommand.Connection = conn

[Code]....

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Supply SqlCommand Parameter Value?

Aug 8, 2009

Below is an UpDate Statement I am practising with David Sceppa's book ADO .NET 2.0 Core Reference pages 467 - 468. I can supply the parameter values for "parameter_New" by doing something like:

da.UpDateCommand.Parameters("@OrderID_New").Value = myTextBox.Text

And so on...My problem is how to supply the value of "paramete_Old" to be able to compare before update. I gues it has to do with obtaining the Original values of the rows based on RowVersion but I don't know how to effect it.

strSQL = "UPDATE [Order Details] " & _
"SET OrderID = @OrderID_New, ProductID = @ProductID_New, " & _
"Quantity = @Quantity_New, UnitPrice = @UnitPrice_New " & _

[code]....

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Using SqlClient.SqlCommand, SqlParameter, Etc?

May 19, 2010

I am experiementing with table updates and the code below gives me the following error message: "The variable named "@Processed" has already been declared... at the following code line: clsWTAdapter.Update("clsWTDataTable"). I fear that all of my code is a general mess, and I am sure there is a much better way to go about it.

Dim clsCmd As New SqlClient.SqlCommand
Dim clsCMAdapter = New SqlClient.SqlDataAdapter("SELECT * FROM CatalogMaster WHERE Processed <>-1", clsCnn)
Dim clsCMDataTable = New DataTable("CatalogMaster")

[code]....

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.net - SqlCommand.ExecuteScalar - Specify A Particular Data Item?

Jun 1, 2011

I have a Stored Procedure which returns 10 columns of data. Using cmd.ExecuteScalar() returns the value of the 1st column from the 1st record. How can I change this so that I can return different columns, by specifying their alias/dataitem name?

I want to be able to do something like: Dim FirstName as String = cmd.ExecuteScalar("FirstName")

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Are Object SqlConnection And SQLCommand Disposed

May 20, 2010

[code]in this code, do the objects con and cmd get disposed because the return statement is placed before the end using statement.

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Assign Date To SqlCommand Parameter?

Nov 19, 2009

sqlCmd.Parameters.Add(New SqlParameter("@DateCreated", SqlDbType.DateTime)).Value = CDate(Now)

it throws error. Kindly suggest how can I assign date to sqlcmd parameter.

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Capture SQL With Parameters Substituted In (.NET - SqlCommand)?

May 19, 2010

If there an easy way to get a completed SQL statement back after parameter substitution? I.e., I want to keep a logfile of all the SQL this program runs. Or if I want to do this, will I just want to get rid of Parameters, and do the whole query the old school way, in one big string? Simple Example: I want to capture the output:

[Code]...

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Create A Lookup Using SqlCommand Select

Apr 8, 2009

I am almost finished building my application. All the data need is being inputted from various locations. I have a form that is suppose to consolidate all this data into a specific format. There are 47 fields that have to be populated and/or calculated based on two fields, the Username and a date range (this part is done). I was trying to set each of the TextBoxes equal to the SQLCommand that would return the proper value, but i am not calling it correctly. Would somebody please take look, is there something i am missing, do i need to write it in a function? I have had to use the Select statement itself in a couple of filters so I'm pretty sure that is correct, but i need help getting it to run the sqlcommand.[code]

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Possible To Run An SQL Script With System.Data.Sql.SqlCommand?

Oct 23, 2009

After the SQL Publishing Wizard has generated a database script I would like to know if it would be possible to execute the whole SQL script using the SqlCommand object, to recreate the database all over again, in case anything goes wrong?

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SQLCommand Insert Netstat Results

Feb 8, 2012

I have a VB.net script that runs a simulation on several machines within the domain. During this simulation, a login is initiated to an application via a web portal. After the login, the connection to a specific Citrix server (whichever is least busy) is established. At this point, I want to run a Netstat -r | find (IP Range of server farm) in command line. From what I have deduced, I probably won't be able to do what I want from the command line and everything will have to be with in the VB.net module using System.Net.NetworkInformation. I am a Citrix Administrator with a decent level of .net experience but I am having trouble with this.

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SQLCommand Not Clearing Text In Loop

Mar 3, 2010

In a for each loop I am adding rows to a table for a cross reference. Using the following code:

For Each cp In pCheckPoints
If cp <> String.Empty Then
Dim insertSQL As New StringBuilder
With insertSQL
.Append("INSERT INTO [CheckpointMessage] ( ")

Without the objCommand.CommandText = String.Empty line the CommandText is appending the insertSQL but that doesn't make any sense to me because I would expect the objCommand's commandText to be empty since it is in a using block.

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Sqlcommand.ExecuteScalar Return Dbnull?

Apr 17, 2009

i tried this sqlcommand select max(food) from foods and i tried this dim x as double=cdbl(cmd.executescalar)and it throws the the exception {System.Invalid CastException}because the food table is empty and the max(food) is null how can i fix that because i want to take the value and add one to it so do i need to catch the error or try another conversion option?

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Trying To Update Record Via SqlCommand With .Text Value

Jun 16, 2010

I'm trying to update a record by using the following code but it's not updating it, the value stays the original database value.[code]

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Value Of Type String Cannot Be Converted To SQLCommand

Apr 11, 2011

I'm a novice VB programmer and I am getting the above error when I try to display the results of one of my Stored Procs in SQL Server which doesn't need any parameters.

My code excerpt:
Dim SQLCmd as SQLCommand = new SQLCommand()
SQLCmd.CommandText = "Exec AllTableCount"
SQLCmd.CommandType = CommandType.StoredProcedure
SQLCmd.Connection = GlobalFunctions.GlobalF.GetDevSQLServerStoredProcedure(SQLCmd.CommandType)
SQLCmd.ExecuteNonQuery()
[Code] .....

I can see this SP from VS 2008 in the Server Explorer. So the problem seems to be that I don't know how to connect a data adapter to an SP. Just a string query.

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Auto-CompleteExtender SqlCommand Select Statement?

Feb 6, 2010

I'm using the following select statement and it works fine but I need it to AutoComplete the results that contain the term as well and not just the results that start with the term. To clarify, if I type in "phrase" it won't AutoComplete the result "my phrase" but if I type in "my" it will. Anyone have a clue what I'm doing wrong? I've tried to use "contains @term" instead of "like @term" but

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Using SqlCommand Object In - One Open Connection In One Procedure

Nov 5, 2009

Can I use two command object with one open connection in one procedure at VB.NET?

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Send A Command To A Command Line And Then Submit The Command?

Apr 30, 2010

First let me say that I am not sure whether or not this should go in this section or the API section, and if it needs to be moved I apologize. My issue is fairly straight forward, but for some reason I cannot get it to work.

I am trying to send a command to a command line and then submit the command. I have been trying without success to get this to work in v2008 Express and v2010 Express, Here is the code I am trying to us:

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String _

[Code].....

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Convert Old GW-BASIC Program To A Command Line Program With Arguments?

Mar 1, 2012

This is going to be a lot to ask, but I'd like to convert my old GW-BASIC program to a command line program with arguments. I'd like it to operate as follows:

elapse [drive:][path]filename This is my old code.

5 CLS
10 OPEN "G:Calc.txt" FOR INPUT AS #1
20 WHILE NOT EOF(1): INPUT #1, A$, B$
30 IF MID$(A$,3,1)=":" THEN C$="DOUBLE DIGIT":GOTO 50
40 IF MID$(A$,2,1)=":" THEN C$="SINGLE DIGIT":GOTO 120

[Code]...

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.net - View T-SQL Syntax Of A Stored Proc-based SqlCommand?

Mar 18, 2010

retrieve the actual T-SQL that is to be executed by a SqlCommand object (with a CommandType of StoredProcedure) before it executes...My scenario involves optionally saving DB operations to a file or MSMQ before the command is actually executed. My assumption is that if you create a SqlCommand like the following:

Using oCommand As New SqlCommand("sp_Foo")
oCommand.CommandType = CommandType.StoredProcedure
oCommand.Parameters.Add(New SqlParameter("@Param1", "value1"))
oCommand.ExecuteNonQuery()
End Using

It winds up executing some T-SQL like:

EXEC sp_Foo @Param1 = 'value1'

Is that assumption correct? If so, is it possible to retrieve that actual T-SQL somehow? My goal here is to get the parsing, validation, etc. benefits of using the SqlCommand class since I'm going to be using it anyway.

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IDE :: SqlCommand.ExecuteReader Does Not Return Result When Used With A StoredProcedure That Uses While Condition?

Dec 17, 2010

I have a stored procedure that repeats a block of T-SQL statements using WHILE logic until it finds a matching record in a table. When I execute the procedure directly from the SQL Management Studio, it works and returns a record, even when the statements within the WHILE logic have to be repeated over and over again before a matching record is found.

However, when I use the same stored procedure as the commandtext property of an sqlcommand object in Visual Studion 2008 (VB) and call the executereader method of the sqlcommand, the resulting SqlDataReader will only return a row if the T-SQL statements within the WHILE logic find a matching record after a single pass. If it takes more than one pass to find a matching record the SqlDataReader does not return a row. It's like it abandons the execution of the stored procedure after the first pass of the statements within the While logic, disregarding the repetition.

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Pull DataList Item Into SqlCommand Insert Statement?

Jun 15, 2009

I have a datalist that returns multiple entries and I need to insert values via an OnClick command for a button I have with each entry. Problem is it's saying that a label I have in the datalist is not declared, in particular the MyLabel.Text from my Insert statement below.Can someone show me with code how I can declare this label or is it even possible? When I put the label outside of the datalist, everything works fine but when it's inside it says it's not declared. [code]...

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SqlCommand Calling A SQL Server Stored Procedure Times Out?

Jun 14, 2012

I've got a conversion utility that basically copies values from one table to another. It's worked great for a while, but I've run into a strange issue with one customer. They got through 1.5 million records with the utility but now it is completely halted.When calling a stored procedure from VB.Net, it just hangs until the SqlCommand times out.Calling the same sproc from Management Studio executes instantly. My VB.Net code for the SqlCommand is below (insertConn is defined and opened earlier, dr is a SqlDataReader that has been populated in a previous step from completely different SqlConnection and SqlCommand instances):

Dim conn As New SqlConnection("connection string here")
Dim insertConn As New SqlConnection("connection string here")
Dim dr As SqlDataReader = Nothing

[code]......

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SQLCommand.ExecScalar() Throws Unreferenced Exception On Return?

Aug 27, 2009

I'm calling Sqlcommand.ExecScalar() - stepping through the stored proc works fine, right under

RETURN @RecordNum

@RecordNum correctly contains a bigint, as scoped. When I step into the RETURN.. I get an exception thrown, that visual studio does not seem to be able to capture.

The stored procedure works fine when executed directly, and returns a value without problem, and it seems like all is well, stepping through it from my code.

But as soon as I step into 'RETURN @RecordNum' (and recordnum contains a valid number..) BOOM! EXCEPTION! (and no details in the exception either back in visual studio.

I'm blaming a glitch in the matrix.

I've turned off even assigned the return from the ExecScalar to anything, same result.. I've tried ExecReader(), same result. I have turned NO COUNT on and off, same result. If I wasn't already bald, I would be now!

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