A Quick And Simple(?) Question About SQL Commands
Feb 28, 2008
I think I have a rather easy one but I'm somewhat new to SQL.
I am currently copying 30,000 of my forums users over to my auction software.
I want to copy some fields from the my "users" table to some fields in the my auction table. Which are all located on the same database.
I've been reading: http://dev.mysql.com/doc/refman/4.1/en/insert-select.html
to help me learn this.
However, I am a bit lost. Could someone give me an example of how to select a table and field, then copy that field into another table/field?
I mean a command to run? Then I can go from there. :-)
Thanks!
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Jan 13, 2008
Hello, Everyone,
Consider the following:
One Table
3 Columns: StudentName, ExamSubject, FinalScore
A class with 40 students
Each student took the 3 exams and have scores.
All student took the same 3 exams.
120 rows total.
Task One:
Top Score in each subject
Task Two:
Top 3 student name in each subject
Task Three:
Top 3 total score student in the class
Task Four:
Avg. Score for each student
Thank you very much...
Jack
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Oct 1, 2004
I'm building a simple webform, except Visual Studio and my service provider have combined to drive me nutty.
First, I MUST use an ODBC connection to my remote SQL Server do to some unknown configuartion problem. I've been playing with Visual Studio for only a month, so normally when something goes wrong I can go look in the mirror and find the culprit. This is different. I've got a totally functional web form with a SQL Connection, but when I try to change it to an ODBC Connection, I get the following error.
An OdbcParameter with ParameterName '@CertHolder' is not contained by this OdbcParameterCollection
My coding is fine because I stole it straight from the walkthrough and it works. But the specifications that Visual Studio provide are quite suspect. Please note the failure to include some key "@" signs.
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.SqlConnection1 = New System.Data.SqlClient.SqlConnection
Me.cmdUpdate = New System.Data.SqlClient.SqlCommand
Me.cmdGetAll = New System.Data.SqlClient.SqlCommand
Me.cmdSelect = New System.Data.SqlClient.SqlCommand
Me.OdbcConnection1 = New System.Data.Odbc.OdbcConnection
Me.OdbcGetAll = New System.Data.Odbc.OdbcCommand
Me.OdbcSelect = New System.Data.Odbc.OdbcCommand
Me.OdbcUpdate = New System.Data.Odbc.OdbcCommand
'
'SqlConnection1
'
Me.SqlConnection1.ConnectionString = "this works fine"
'
'cmdUpdate
'
Me.cmdUpdate.CommandText = "UPDATE InsuranceData SET Name = @Name, Address = @Address, Address2 = @Address2, " & _
"City = @City, State = @State, Zip = @Zip, CertHolder = WHERE (CertHolder = @Cert" & _
"Holder)"
Me.cmdUpdate.Connection = Me.SqlConnection1
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@Name", System.Data.SqlDbType.NVarChar, 50, "Name"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@Address", System.Data.SqlDbType.NVarChar, 50, "Address"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@Address2", System.Data.SqlDbType.NVarChar, 50, "Address2"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@City", System.Data.SqlDbType.NVarChar, 50, "City"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@State", System.Data.SqlDbType.NVarChar, 50, "State"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@Zip", System.Data.SqlDbType.NVarChar, 50, "Zip"))
Me.cmdUpdate.Parameters.Add(New System.Data.SqlClient.SqlParameter("@CertHolder", System.Data.SqlDbType.NVarChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "CertHolder", System.Data.DataRowVersion.Original, Nothing))
'
'cmdGetAll
'
Me.cmdGetAll.CommandText = "SELECT CertHolder, Name, Address, Address2, City, State, Zip FROM InsuranceData"
Me.cmdGetAll.Connection = Me.SqlConnection1
'
'cmdSelect
'
Me.cmdSelect.CommandText = "SELECT CertHolder, Name, Address, Address2, City, State, Zip FROM InsuranceData W" & _
"HERE (CertHolder = @CertHolder)"
Me.cmdSelect.Connection = Me.SqlConnection1
Me.cmdSelect.Parameters.Add(New System.Data.SqlClient.SqlParameter("@CertHolder", System.Data.SqlDbType.NVarChar, 50, "CertHolder"))
'
'OdbcConnection1
'
Me.OdbcConnection1.ConnectionString = "This works fine"
'
'OdbcGetAll
'
Me.OdbcGetAll.CommandText = "SELECT CertHolder, Name, Address, Address2, City, State, Zip FROM InsuranceData"
Me.OdbcGetAll.Connection = Me.OdbcConnection1
'
'OdbcSelect
'
Me.OdbcSelect.CommandText = "SELECT CertHolder, Name, Address, Address2, City, State, Zip FROM InsuranceData W" & _
"HERE CertHolder = @CertHolder"
Me.OdbcSelect.Connection = Me.OdbcConnection1
Me.OdbcSelect.Parameters.Add(New System.Data.Odbc.OdbcParameter("CertHolder", System.Data.Odbc.OdbcType.NVarChar, 50, "CertHolder"))
'
'OdbcUpdate
'
Me.OdbcUpdate.CommandText = "UPDATE InsuranceData SET Name = @Name, Address = @Address, Address2 = @Address2, " & _
"City = @City, State = @State, Zip = @Zip WHERE CertHolder = @CertHolder"
Me.OdbcUpdate.Connection = Me.OdbcConnection1
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("Name", System.Data.Odbc.OdbcType.NVarChar, 50, "Name"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("Address", System.Data.Odbc.OdbcType.NVarChar, 50, "Address"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("Address2", System.Data.Odbc.OdbcType.NVarChar, 50, "Address2"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("City", System.Data.Odbc.OdbcType.NVarChar, 50, "City"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("State", System.Data.Odbc.OdbcType.NVarChar, 50, "State"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("Zip", System.Data.Odbc.OdbcType.NVarChar, 50, "Zip"))
Me.OdbcUpdate.Parameters.Add(New System.Data.Odbc.OdbcParameter("Original_CertHolder", System.Data.Odbc.OdbcType.NVarChar, 50, System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0, Byte), "CertHolder", System.Data.DataRowVersion.Original, Nothing))
I NEVER EVER TYPED ORIGINAL_CERTHOLDER IN THE SQL PREPARATION
End Sub
Protected WithEvents btnSave As System.Web.UI.WebControls.Button
Protected WithEvents SqlConnection1 As System.Data.SqlClient.SqlConnection
Protected WithEvents ddlCertHolder As System.Web.UI.WebControls.DropDownList
Protected WithEvents txtName As System.Web.UI.WebControls.TextBox
Protected WithEvents txtAddress As System.Web.UI.WebControls.TextBox
Protected WithEvents ddlCH As System.Web.UI.WebControls.DropDownList
Protected WithEvents cmdUpdate As System.Data.SqlClient.SqlCommand
Protected WithEvents cmdGetAll As System.Data.SqlClient.SqlCommand
Protected WithEvents cmdSelect As System.Data.SqlClient.SqlCommand
Protected WithEvents txtAddress2 As System.Web.UI.WebControls.TextBox
Protected WithEvents txtCity As System.Web.UI.WebControls.TextBox
Protected WithEvents txtState As System.Web.UI.WebControls.TextBox
Protected WithEvents txtZip As System.Web.UI.WebControls.TextBox
Protected WithEvents OdbcConnection1 As System.Data.Odbc.OdbcConnection
Protected WithEvents OdbcGetAll As System.Data.Odbc.OdbcCommand
Protected WithEvents OdbcSelect As System.Data.Odbc.OdbcCommand
Protected WithEvents OdbcUpdate As System.Data.Odbc.OdbcCommand
'NOTE: The following placeholder declaration is required by the Web Form Designer.
'Do not delete or move it.
Private designerPlaceholderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeComponent()
End Sub
#End Region
Comments? Suggestions, I am not positive about how to fix this.
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May 26, 2004
Hey,
I have MS SQL database.
I have procedure:
code:--------------------------------------------------------------------------------
CREATE PROCEDURE dbo.Reg_DropTable
@ModuleId varchar(10)
AS
declare @TableName varchar, @kiek numeric
set @TableName = 'reg_'+@ModuleId
begin
DROP TABLE @TableName <- HERE I GOT ERROR
end
GO
--------------------------------------------------------------------------------
I got error when using variable with tables names.
How to do this?
Ps. Number is send to this function and it must drop table with name Reg_[That number]
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Jan 7, 2008
Hi All,
I have these two commands that I execute at the end of my stored procedure. I get an email every time I execute this stored procedure whether the select statement returns a value or not. But I only want to get an email if select statement returns an Error value. How can I accomplish this?
set @cmd = 'osql -S server -U user -P psswd -q "set nocount on; select distinct(rtrim(col1)) from ##table where datediff(dd,col2,getdate()) = 1 and (col1 like ''%Error: %'')" -h-1 -w 1025 -o J:MyFolderErrorLogMsg.txt'
EXEC master.dbo.xp_cmdshell @cmd, no_output
SET @email = 'mailsend -f someone@mymail.com -d -smtp -t someone@mymail.com -sub "Error Log Errors" -m J:MyFolderErrorLogMsg.txt'
EXEC master.dbo.xp_cmdshell @email, no_output
Thanks.
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Jan 7, 2008
Hi All,
I have these two commands that I execute at the end of my stored procedure. I get an email every time I execute this stored procedure whether the select statement returns a value or not. But I only want to get an email if select statement returns an Error value. How can I accomplish this?
set @cmd = 'osql -S server -U user -P psswd -q "set nocount on; select distinct(rtrim(col1)) from ##table where datediff(dd,col2,getdate()) = 1 and (col1 like ''%Error: %'')" -h-1 -w 1025 -o J:MyFolderErrorLogMsg.txt'
EXEC master.dbo.xp_cmdshell @cmd, no_output
SET @email = 'mailsend -f someone@mymail.com -d -smtp -t someone@mymail.com -sub "Error Log Errors" -m J:MyFolderErrorLogMsg.txt'
EXEC master.dbo.xp_cmdshell @email, no_output
Thanks.
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Jan 13, 2004
How can I get all SQL commands in SqlServer? How can I trace this commands?
Thansk
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Feb 8, 2006
Hello,
I finally got access to Northwind/pubs.
I would like to know when and why do we use the following set commands. The SQL Server BOL does not say why and when to use these commands.
Thanks in advance!!!
sqlnovice123
Option Default Setting
Set nocount OFF
Set rowcount 0
Set ansi_nulls ON
Set quoted_identifier ON
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Nov 29, 2007
Hi guys,I wanna ask bout the problem with my web application. I'm doing a select a statement from table 1 and and with the query results i got, i need it to store the result on table 2. How will i do this? I need your tips and suggestions.
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Jan 8, 2006
I'm running asp.net 2.0 and acessing MSSQL 2K. I am trying to run a query in which I need to set up variables first. I tried the following group of commands as shown, passing it to the SqlDataReader object, but it failed.. does anyone know how i can pass multiple SQL commands? MainQuery = "declare @MinGrades as Table(GradeID Bigint) " & _ " INSERT @MinGrades SELECT MIN(CreditGrades.SplitID) AS Expr1" & _ " FROM CreditGrades INNER JOIN" & _ " CreditGradeSplits ON CreditGradeSplits.CreditGradeSplitID = CreditGrades.SplitID " & _ " WHERE (CreditGrades.x0x30 = - 1 OR " & _ " CreditGrades.x0x30 >= 0) AND (CreditGrades.x1x30 = - 1 OR " & _ " CreditGrades.x1x30 >= 0) AND (CreditGrades.x2x30 = - 1 OR " & _ " CreditGrades.x2x30 >= 0) AND (CreditGrades.x3x30 = - 1 OR " & _ " CreditGrades.x3xNOD >= 0) " & _ " GROUP BY CreditGradeSplits.CreditGradeGroupID" & _ " Select * from @MinGrades "
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Nov 7, 2001
I am experiencing a situation where I issue a lengthy SQL command to MS SQL Server 7.0 through MTS and it "disappears" - no errors or recordsets are returned. The command is "SELECT * FROM CUSTOMERS WHERE LASTNAME LIKE 'SMITH%'". When I issue this command from SQL Query Analyzer it takes 27 seconds to return 87 rows. When I issue this exact same command through MTS it does not return at all.
I've used the SQL Profiler to analyze the requests. It shows the commands from MTS starting but they never stop (or at least the profiler never reports them as stopping). The same commands coming from Query Analyzer are reported as starting and stopping without fail.
Here's a twist: I can issue less demanding commands (ie, one that doesn't take so long to process) through MTS and they come back fine. For example, when a user logs into my application, I use an SQL statement to verify the user name and password and status the user as logged in. This is routed through MTS and it comes back fine in less than a second. Same application, same PC, same MTS and SQL server, same SQL database. The only difference is that the CUSTOMERS table has over 800,000 records and the USERS table has only 5 records.
PLEASE HELP!
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Jul 26, 2004
Hi,
I am very new to sql server and I have been reading up on the dbcc commands. For instance, DBCC SHOWCONTIG where do I execute this command? I went into the cmd prompt and opened osql and typed:
1> DBCC SHOWCONTIG
2> GO
This gives me the information for what I assume is the master database. But, how do I use this command under the other databases?
Also, I have been trying to learn how to determine when to do index maintenance by using the index tuning wizard. But, I don't know what a workload is. Can someone point me in the right direction or give me some information about this topic.
Thanks,
Laura
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Aug 28, 2006
Hi
Please can someone point me in the direction, i built a very badly designed database consisting of only one huge table when i first started databases, since learning about normalization i have designed and set up a new database which consists of many more tables instead of just the one. My question is where do i start in transfering the data from the old single tabled database to my new multi-tabled database?
I have MS SQL server 2005 managment studio if that helps, but want to transfer around 200,000 rows of data into the new database. Both new and old databases are on the same server.
thanks in advance
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Feb 29, 2012
I have a job that runs between the hours of 10 PM and 9 AM. It launches a controller stored procedure that will call other stored procedure until the entire process is done.I would like the controlling stored procedure to only call the steps between the hours of 10PM and 9AM also.. So at 8:59 AM it will start the next step, but at 9:00 AM it will exit.
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Nov 4, 2007
hi all
when i set up a new subcription ,i notice in hte replication monitor thet this subscription 'uninitialize subscription' and the are 70 undelevier commands.
how can i fixed this problem,or how can i remove those undeleveirs commands?
thanx
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Jul 23, 2005
Hi All,Is there way that commands executed in the query analyzer get loggedautomatically?TIAJoriz
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May 19, 2006
Hi,
Suppose there are two tables employee and salary and a,b are two instances of tables employee and salary.There are 20 records in each table.Then what will be the result of the following query
select a.*, b.* from employee a, salary b.
regards
arun
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Feb 6, 2007
Hi al,
Are there commands that are not supported when mirroring is active? (truncate table, bcp, set identity insert on/off etc.)
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Aug 7, 2007
Hi
Can we use
DBCC CHECKIDENT ('dbo.MyTable', RESEED, 0)
Command in Stored procedure. Which executes daily.
Thanks
Sridhar K
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May 25, 2006
Hello, I am running SQL 2000 SP4 on a Windows 2003 standard edition server.
The SQL database gets changed/updated through a web interface. I was wondering if there was any way for me to see which SQL commands were being run on the database when changed like deleting/inserting users are being applied from the Web frontend?
Any help is appreciated, thanks.
Robert
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Apr 17, 2007
When we send any SQL command to database engine , how exactly it gets executed?
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May 13, 2008
I have to implement some logic in a view and I don't know how to do it. Let me outline the logic:
- I'm working with a view where records represent participant activities.
- Some participants can have numerous activities.
- Each activity has a start date and an activity code.
- Only records with activity code 23 or 33 appear in the view currently.
What I need to do is NOT include records where the participant has another activity with code 26 (from another table, the one the current view is derived from) which has the same start date as the activity 23/33 record in the view currently. Also, this should only be implemented if the start date is the first start date (minimum start date for that participant).
Little help?
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Mar 15, 2007
I've noticed that there are a lot of questions on this forum, but not as many thank you's. I'm far from a DBA (more of a simple, small town, one stop shop), but have learned tons of information from reading your posts. I certainly appreciate everyone's willingness and excitment to contribute to the SQL community. So here's to you...thank you!
Erik
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Jul 24, 2007
hey guys, how could you get the primary key field of a record you have just inserted into a table?
Many thanks
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Jul 31, 2007
Hey guys,
How would you copy data between two identical tables residing on two different databases?
So we have table1 on database1 and table2 on database2. I would like to copy the entire contents from table1 to table2.
Muchos gracias
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Aug 10, 2007
Hi All
What am i doing wrong with this im tired and for the life of me it wont work
Cheers
Phil
if
(Select sum(Unitprice*qtysold) from #DataExport_tmp where recordtype = 'L'group by transref )<> select Totalcost from #DataExport_tmp where recordtype = 'T'
BEGIN
PRINT 'no good'
end
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Oct 28, 2007
i use windows vista and installed visual net 2005 and sqlserver 2005
but i have some proplem:
my step:
1.open vs net 2005
2.make one project
3.make one button
4.get data->datagridview
5.choose add data source
6.choose new data---> this step then choose microsoft sql server
7.typing servername
8.choose attach a database file and choose browe..
9.link to folder have database(.dbf)
but i have worked them very much but not run for me
i dont know why it is like that
"login faild"or you dont have permission to pen this filecontact the file ower or an administrator to obtain permissio
pls help me i very need for learning
my Y!M: phok28a@yahoo.com
pls contact me and help me
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Aug 10, 2006
How can I make sure that a couple of commands are either all executed on the database or none of them. For example right now I have an insert, update and delete command. I'm calling each of them with a SqlCommand. So I am afraid that that one of them might be executed, then there's a bad connection and the other two are not. How can I prevent this so that only all commands or nothing is executed on the database?
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Jan 16, 2008
Is there a way to have two sql update commands so I can use both during an update depending on which row it is?
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Mar 25, 2008
Hi everyoneI created a database graphically in VS2005.Now I want the text version of those DDL(create) commands. Question is where and how are those commands stored in SqlServer I have the management studio too. Any ideas??
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Mar 29, 2008
Please forgive me if my questions seem very simple. I'm trying to pick up vb.net, asp.net, and SQL all at the same time, and while making progress in some areas I'm finding other questions I have harder to figure out where to look for answers.
First question - if I want to join 2 tables do the fields I'm joining on have to have the same name? I know they have to be of the same type, but does the name itself matter? For instance in this line of code I try to join forums
objdataadapter.SelectCommand.CommandText = "select * from msg_forums" & "JOIN users ON msg_forums.forum_moderators = users.user_ID"
Second question nagging at me, since I specify the table <msg_forums and users> before the field names <forum_moderators and user_ID> does it matter which one comes first? See, my primary table in this line is msg_forums, so do I have to specify it's field first, or does that even matter (or do I have it backwards and need to specify the other one first)?
Last question, and of course the root of what's caused me to wonder about all of this. I'm getting an error similar to some of what I found in the forums, but it's slightly different in that it says there is a problem near "OR". As far as I can tell I've written this correctly, and so, I'm stumped. Here is the error followed by the code. Thanks a bunch for any assistance anyone offers. :-) Incorrect syntax near the keyword 'ON'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near the keyword 'ON'.
'This time trying to learn an adapter instead of a reader, will also try a join
'Build the connectionDim StrConnection As String = (System.Configuration.ConfigurationManager.AppSettings("DbConnect"))
Dim objConnection As New SqlConnection(StrConnection)Dim objdataadapter As New SqlDataAdapter()
Dim objdataset As New DataSet()
'set the SelectCommand Properties objDataadapter.SelectCommand = New SqlCommand
objdataadapter.SelectCommand.Connection = objConnection
'try after renaming to fields to match
objdataadapter.SelectCommand.CommandText = "select * from msg_forums" & "JOIN users ON msg_forums.user_ID = users.user_ID"
'Try without specifying the table
'objdataadapter.SelectCommand.CommandText = "select * from msg_forums" & "JOIN users ON user_ID = user_ID"
'Original attempt
objdataadapter.SelectCommand.CommandText = "select * from msg_forums" & "JOIN users ON msg_forums.forum_moderators = users.user_ID"
objdataadapter.SelectCommand.CommandType = CommandType.Text
'open the database connection
objConnection.Open()
'Fill the dataset with object data giving the dataset to use and the table name (primary table even when pulling from a couple)objdataadapter.Fill(objdataset, "msg_forums")
'close connection
objConnection.Close()
'Set DataGridView properties
grdforums.AutoGenerateColumns = True
grdforums.DataSource = objdataset
grdforums.DataMember = "msg_forums"End Sub
End Class
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Jan 21, 2004
I'm more used to mysql, which i haven't coded for a while, but how do you show tables? or show databases you have available from the osql prompt?
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