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SqlCommandBuilder question Messages   Related Types This message was discovered on ASPFriends.com 'ngfx-sqlclient' list. Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions. Bob Herrmann -- Moved from [aspngdata] to [ngfx-sqlclient] by Sheik Yerbouti <Click here to reveal e-mail address> -- Hi all, I recently copied a snippet of code from a .Net web site which helped me convert a XML file to SQL. The code does work as planned. I notice this code uses a feature which I have not used before, specifically the SqlCommandBuilder. I have listed the code below. This code does the INSERT into my SQL database. My question is the how the heck does it do this? I do not see where the INSERT command is used in the SqlCOmmandBuilder object. Can someone explain how this works so that I can understand it? I'd also like to know how this could be modified to use the UPDAT and DELETE commands. Bob Private Function InsertXMLIntoDatabase(ByVal ds As DataSet) As Boolean Dim connStr As String = "server=abc;uid=sa;pwd=pass;database=BobMS" Dim sql As String = "SELECT * FROM tabTopFolder" Dim insertStatus As Boolean = True Dim dataConn As New SqlConnection(connStr) Dim da As New SqlDataAdapter(sql, dataConn) Dim cb As New SqlCommandBuilder(da) Try da.Update(ds, "tabTopFolder") Catch exp As Exception Response.Write("<br> " & exp.Message) insertStatus = False Finally If dataConn.State <> ConnectionState.Closed Then dataConn.Close() End If End Try Return insertStatus End Function 'InsertXMLIntoDatabase Reply to this message...        William \(Bill\) Vaughn (VIP) The CommandBuilder class takes the SELECT statement from the DataAdapter SelectCommand, parses it and makes a round trip to the server asking the provider (and server) to describe the SQL. From that it congers the UPDATE, INSERT and DELETE action queries and populates the DataAdapter commands appropriately. hth William (Bill) Vaughn Author, trainer, mentor Microsoft Regional Director -- Pacific Northwest Beta V Corporation Redmond, Washington USA www.betav.com (425) 556-9205 (v/f) -----Original Message----- From: Bob Herrmann [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 6:56 AM To: ngfx-sqlclient Subject: [ngfx-sqlclient] SqlCommandBuilder question -- Moved from [aspngdata] to [ngfx-sqlclient] by Sheik Yerbouti <Click here to reveal e-mail address> -- Hi all, I recently copied a snippet of code from a .Net web site which helped me convert a XML file to SQL. The code does work as planned. I notice this code uses a feature which I have not used before, specifically the SqlCommandBuilder. I have listed the code below. This code does the INSERT into my SQL database. My question is the how the heck does it do this? I do not see where the INSERT command is used in the SqlCOmmandBuilder object. Can someone explain how this works so that I can understand it? I'd also like to know how this could be modified to use the UPDAT and DELETE commands. Bob Private Function InsertXMLIntoDatabase(ByVal ds As DataSet) As Boolean Dim connStr As String = "server=abc;uid=sa;pwd=pass;database=BobMS" Dim sql As String = "SELECT * FROM tabTopFolder" Dim insertStatus As Boolean = True Dim dataConn As New SqlConnection(connStr) Dim da As New SqlDataAdapter(sql, dataConn) Dim cb As New SqlCommandBuilder(da) Try da.Update(ds, "tabTopFolder") Catch exp As Exception Response.Write("<br> " & exp.Message) insertStatus = False Finally If dataConn.State <> ConnectionState.Closed Then dataConn.Close() End If End Try Return insertStatus End Function 'InsertXMLIntoDatabase | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT Reply to this message...        Dan Wahlin Also...it's quite convenient to use in some circumstances (and I'll use it for more simple apps) but due to the round trip Bill mentioned it's not as efficient as defining everything yourself. I saw a presentation at Tech Ed by Michael Pizzo (Microsoft ADO.NET software architect) and he basically said that if you want to maximize your performance don't use it (which of course makes sense based upon Bill's statement). Dan Wahlin Consulting LLC Microsoft MVP - ASP.NET http://www.XMLforASP.NET XML for ASP.NET Developers by Dan Wahlin in bookstores everywhere! -----Original Message----- From: William (Bill) Vaughn [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 12:36 PM To: ngfx-sqlclient Subject: [ngfx-sqlclient] RE: SqlCommandBuilder question The CommandBuilder class takes the SELECT statement from the DataAdapter SelectCommand, parses it and makes a round trip to the server asking the provider (and server) to describe the SQL. From that it congers the UPDATE, INSERT and DELETE action queries and populates the DataAdapter commands appropriately. hth William (Bill) Vaughn Author, trainer, mentor Microsoft Regional Director -- Pacific Northwest Beta V Corporation Redmond, Washington USA www.betav.com (425) 556-9205 (v/f) -----Original Message----- From: Bob Herrmann [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 6:56 AM To: ngfx-sqlclient Subject: [ngfx-sqlclient] SqlCommandBuilder question -- Moved from [aspngdata] to [ngfx-sqlclient] by Sheik Yerbouti <Click here to reveal e-mail address> -- Hi all, I recently copied a snippet of code from a .Net web site which helped me convert a XML file to SQL. The code does work as planned. I notice this code uses a feature which I have not used before, specifically the SqlCommandBuilder. I have listed the code below. This code does the INSERT into my SQL database. My question is the how the heck does it do this? I do not see where the INSERT command is used in the SqlCOmmandBuilder object. Can someone explain how this works so that I can understand it? I'd also like to know how this could be modified to use the UPDAT and DELETE commands. Bob Private Function InsertXMLIntoDatabase(ByVal ds As DataSet) As Boolean Dim connStr As String = "server=abc;uid=sa;pwd=pass;database=BobMS" Dim sql As String = "SELECT * FROM tabTopFolder" Dim insertStatus As Boolean = True Dim dataConn As New SqlConnection(connStr) Dim da As New SqlDataAdapter(sql, dataConn) Dim cb As New SqlCommandBuilder(da) Try da.Update(ds, "tabTopFolder") Catch exp As Exception Response.Write("<br> " & exp.Message) insertStatus = False Finally If dataConn.State <> ConnectionState.Closed Then dataConn.Close() End If End Try Return insertStatus End Function 'InsertXMLIntoDatabase | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.377 / Virus Database: 211 - Release Date: 07/15/2002 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.377 / Virus Database: 211 - Release Date: 07/15/2002 Reply to this message...        William \(Bill\) Vaughn (VIP) It also is kinda dumb. The SQL it generates is pretty simplistic and does not address a number of issues including Update Criteria (as set in ADO classic), limiting the columns to update (it updates all columns), using TimeStamps (they are ignored), returning the Identity... and more. William (Bill) Vaughn Author, trainer, mentor Microsoft Regional Director -- Pacific Northwest Beta V Corporation Redmond, Washington USA www.betav.com (425) 556-9205 (v/f) -----Original Message----- From: Dan Wahlin [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 12:46 PM To: ngfx-sqlclient Subject: [ngfx-sqlclient] RE: SqlCommandBuilder question Also...it's quite convenient to use in some circumstances (and I'll use it for more simple apps) but due to the round trip Bill mentioned it's not as efficient as defining everything yourself. I saw a presentation at Tech Ed by Michael Pizzo (Microsoft ADO.NET software architect) and he basically said that if you want to maximize your performance don't use it (which of course makes sense based upon Bill's statement). Dan Wahlin Consulting LLC Microsoft MVP - ASP.NET http://www.XMLforASP.NET XML for ASP.NET Developers by Dan Wahlin in bookstores everywhere! -----Original Message----- From: William (Bill) Vaughn [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 12:36 PM To: ngfx-sqlclient Subject: [ngfx-sqlclient] RE: SqlCommandBuilder question The CommandBuilder class takes the SELECT statement from the DataAdapter SelectCommand, parses it and makes a round trip to the server asking the provider (and server) to describe the SQL. From that it congers the UPDATE, INSERT and DELETE action queries and populates the DataAdapter commands appropriately. hth William (Bill) Vaughn Author, trainer, mentor Microsoft Regional Director -- Pacific Northwest Beta V Corporation Redmond, Washington USA www.betav.com (425) 556-9205 (v/f) -----Original Message----- From: Bob Herrmann [mailto:Click here to reveal e-mail address] Sent: Friday, July 26, 2002 6:56 AM To: ngfx-sqlclient Subject: [ngfx-sqlclient] SqlCommandBuilder question -- Moved from [aspngdata] to [ngfx-sqlclient] by Sheik Yerbouti <Click here to reveal e-mail address> -- Hi all, I recently copied a snippet of code from a .Net web site which helped me convert a XML file to SQL. The code does work as planned. I notice this code uses a feature which I have not used before, specifically the SqlCommandBuilder. I have listed the code below. This code does the INSERT into my SQL database. My question is the how the heck does it do this? I do not see where the INSERT command is used in the SqlCOmmandBuilder object. Can someone explain how this works so that I can understand it? I'd also like to know how this could be modified to use the UPDAT and DELETE commands. Bob Private Function InsertXMLIntoDatabase(ByVal ds As DataSet) As Boolean Dim connStr As String = "server=abc;uid=sa;pwd=pass;database=BobMS" Dim sql As String = "SELECT * FROM tabTopFolder" Dim insertStatus As Boolean = True Dim dataConn As New SqlConnection(connStr) Dim da As New SqlDataAdapter(sql, dataConn) Dim cb As New SqlCommandBuilder(da) Try da.Update(ds, "tabTopFolder") Catch exp As Exception Response.Write("<br> " & exp.Message) insertStatus = False Finally If dataConn.State <> ConnectionState.Closed Then dataConn.Close() End If End Try Return insertStatus End Function 'InsertXMLIntoDatabase | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.377 / Virus Database: 211 - Release Date: 07/15/2002 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.377 / Virus Database: 211 - Release Date: 07/15/2002 | [ngfx-sqlclient] member Click here to reveal e-mail address = YOUR ID | http://www.aspfriends.com/aspfriends/ngfx-sqlclient.asp = JOIN/QUIT Reply to this message...     System.Data.Common.DataAdapter System.Data.ConnectionState System.Data.DataSet System.Data.SqlClient.SqlCommandBuilder System.Data.SqlClient.SqlConnection System.Data.SqlClient.SqlDataAdapter Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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