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Wow, it's too strange and really interesting  . I've never seen it before (even in SQL Help). You're right, it really works... Thanks a lot! 
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Blue_Skye wrote:
You're right, it really works...
I know, I learned it here! 
I'm glad to have helped you. Good luck!
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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I've just found the solution. The way i solve the problem is using cursor :
declare @VariableName datatype<br />
declare CursorName<br />
for<br />
select TableColumn from Table1<br />
open CursorName<br />
fetch next from CursorName into @VariableName<br />
while(@@FETCH_STATUS = 0)<br />
begin<br />
Insert into Table2 values(@VariableName,...,...)<br />
fetch next from CursorName into @VariableName<br />
end<br />
close CursorName<br />
deallocate CursorName
The example i used here take just one column but you can use as many columns as you like. This cursor remind me while(Reader.Read()) in C#
Thanks your reply. I'm very happy to talk with you
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I'm glad you solved it, but cursors are very inefficient. I would recommend you at least try my idea, it should work much faster. See my response to toxcct above; the code I gave you works.
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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Hello,
When l got to update my database l get this error message "Missing the datacolumn 'DepartmentName' in the DataTable 'Employee' for the sourceColumn 'DepartmentName' ".
I have a database application. 2 tables. Department and Employee.
Department -> DepartmentCode (PK)
DepartmentName
Employee -> EmployeeID (PK)
Name
Surname
DepartmentCode (FK)
I have create this relationship in code using relationships in the form load event. see below:
<br />
private void frmEmployees_Load(object sender, System.EventArgs e)<br />
{<br />
try<br />
{<br />
cnn.Open();<br />
OleDbCommand cmd = cnn.CreateCommand();<br />
cmd.CommandType = CommandType.Text;<br />
cmd.CommandText = "SELECT * FROM Employee";<br />
da.SelectCommand = cmd;<br />
da.FillSchema(ds,SchemaType.Source,"Employee");<br />
da.Fill(ds,"Employee");<br />
<br />
cmd.CommandText = "SELECT * FROM Department";<br />
da.SelectCommand = cmd;<br />
da.FillSchema(ds,SchemaType.Source,"Department");<br />
da.Fill(ds,"Department");<br />
<br />
DataColumn parentColumn = ds.Tables["Department"].Columns["DepartmentCode"];<br />
DataColumn childColumn = ds.Tables["Employee"].Columns["DepartmentCode"];<br />
<br />
ds.Relations.Clear();<br />
drEmployees = new DataRelation("EmployeeDetails",parentColumn,childColumn);<br />
ds.Relations.Add(drEmployees);<br />
<br />
txtEmployeeID.Text = ds.Tables["Employee"].Rows[0]["EmployeeNumber"].ToString();<br />
txtFirstName.Text = ds.Tables["Employee"].Rows[0]["FirstName"].ToString();<br />
txtSurname.Text = ds.Tables["Employee"].Rows[0]["Surname"].ToString();<br />
txtDateOfBirth.Text = ds.Tables["Employee"].Rows[0]["DateOfBirth"].ToString();<br />
txtAddress1.Text = ds.Tables["Employee"].Rows[0]["Address1"].ToString();<br />
txtAddress2.Text = ds.Tables["Employee"].Rows[0]["Address2"].ToString();<br />
cboDepartment.Text = ds.Tables["Employee"].Rows[0]["DepartmentCode"].ToString();<br />
<br />
string departmentCode = ds.Tables["Employee"].Rows[0]["DepartmentCode"].ToString();<br />
DataRow[] departmentRow = ds.Tables["Department"].Select("DepartmentCode = '" + departmentCode + "' ");<br />
string departmentName = departmentRow[0]["DepartmentName"].ToString();<br />
<br />
<br />
this.UpdateDepartments();
} <br />
catch ( OleDbException ex )<br />
{<br />
MessageBox.Show(ex.Message);<br />
}<br />
catch ( Exception ex )<br />
{<br />
MessageBox.Show(ex.Message);<br />
}<br />
}<br />
When l click the update button, l run this code and get an error on the update.
<br />
ds.Tables["Employee"].Rows[0]["FirstName"] = txtFirstName.Text;<br />
ds.Tables["Employee"].Rows[0]["Surname"] = txtSurname.Text;<br />
ds.Tables["Employee"].Rows[0]["DepartmentCode"] = departmentCode;<br />
<br />
da.Update(ds,"Employee");
I hope someone can help me with this question. very important.
Thanks in advance,
Steve
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Hey guys, morning....
Got a prob thats kept me up for a little too long tonight,
I need to find a way (is it possible?) to have a variable query written in vb.net that will change based on a text box input. Yah, i could write an if/then statment to get the solution out the door, but that seems the long way around, plus it would be more time consuming as I have about 60 different possible 'variables'.
Basically I have 60 different machines that record money transactions, and I need to beable to search by either a textbox input or a dropdown list of the machines (named in order from 01-60) to pull the value amount currently in the machines.
Help!
Dim Beautiful As String
Beautiful = "ignorant"
Label1.Text = "The world is full of " & Beautiful & " people."
Why is common sense such an un-common comodity?
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wetrivrrat wrote:
I need to find a way (is it possible?) to have a variable query written in vb.net that will change based on a text box input.
Yes, of course.
myCommand.CommandText = "SELECT someColumns From someTable WHERE machineName = @machineName";
myCommand.Parameters.Add("@machineName", someMachineName);
Assumes that your command object is called myCommand.
The variable someMachine contains the name of the machine that you retrieved out of your user interface.
Does this help?
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in your code i'm assuming you're writing it in a command function? right, if
so then i'm only limited to 'GetType' unless i add the 'as string' or
someother class. so I guess my first Q would be, what class are you
expecting this to go under? if it helps any I was just using a
OleDbDataAdapter and DataSet to connect to sql(so if i had to use access later its already ready for it!).
Second Q was, is my interpretation of your code correct?
Function LoadLastInvoice()
Dim VAMachineName As String
VAMachineName = TextBox3.Text
LoadLastInvoice.CommandText = "SELECT last_invoice From Location_table WHERE
Location_ID = @machineName"
LoadLastInvoice.Parameters.Add("@machineName", VAMachineName)
End Function
Because I'm getting the following crash-related error...
'Object variable or With block variable not set'
and I'm not sure how to set the @machineName variable as I tried several ways and nothing seemed to work...
Thanks
Dim Beautiful As String
Beautiful = "ignorant"
Label1.Text = "The world is full of " & Beautiful & " people."
Why is common sense such an un-common comodity?
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hello my dear,
want to register the sql database from my local computer using enteprize manager but this error apeared :
sql server does not exist or access is denied.
i am sure about the correction of the user name and password and server name.my local windows is xp2000 but the windows of the server is 20003pro.the version of the sql in my local is personal no enteprize.
thanks in advanced
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Anonymous wrote:
i am sure about the ... server name.
OK on your local intranet, otherwise you will need to use an IP address. Could the problem be as simple as that?
cheers
Phil
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thank you,
I used the ip but did'nt get advantage.
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can i bind a parameter to a column of a datagrid, or it can only be binded in table's columns?
I have the aggregated values of total sales for each year(from sh schema) in a datagrid, and i want to retrieve all the detail tuples from a year which user will 'click'.
i use the following query to do this:
select decode(prod_subcategory,null,'ALL',prod_subcategory) as subcateg,decode(prod_category,null,'ALL',prod_category) as categ,sum(amount_sold) as dolars
from sh.products,sh.sales,sh.times
where products.prod_id=sales.prod_id and times.time_id=sales.time_id and end_of_cal_year=:param1
group by rollup(prod_category,prod_subcategory)
where param1 it's an OracleParameter with parameter->set_SourceColumn("END_OF_CAL_YEAR") and i get an
ORA-01008 error( not all variables binded )
any help?
thanks in advance
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A big problem is a Datetime object in the CommandText property. I always get an error. Is .NET unable to convert Datetime object into the right SQL Server system format? When it's possible ... how to solve it?
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Seraphin wrote:
A big problem is a Datetime object in the CommandText property.
Why are you putting a DateTime in the CommandText property?
Seraphin wrote:
Is .NET unable to convert Datetime object into the right SQL Server system format?
.NET is perfectly capbable of converting a DateTime object to what ever format you wish in multiple calendars (should you so wish it).
Seraphin wrote:
how to solve it?
If you need to use a DataTime (or anything else for that matter) in a query you should use parameters. This reduces the possibility of security holes.
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "SELECT * FROM MyTable WHERE SomeDate > @theDate";
cmd.Parameters.Add("@theDate", myDateTimeObject);
Does this help?
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Thank you. That's what I want.
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I want my DateTime value type fields just store date values (month/day/year) or time values (hour:minute). How can i do that?
I have datetime fields in tables with full information (month/day/year hour:minute:second:milisecond). But i just want to take month/day/year or hour:minute in my select query string. How can i do that?
Thanks!
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Is there an easier way than
SELECT ltrim(str(DATEPART(month, GETDATE()))) + '/' + ltrim(str(DATEPART(day, GETDATE()))) + '/' + ltrim(str(DATEPART(year, GETDATE()))) ?
<italic>Work hard, Work effectively.
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I haven't got the solution Colin. I have tried
select convert(datetime,getDate(),101) .  I only want the day, month, and year. Thank you for the reply.
<italic>Work hard, Work effectively.
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Yeah, i often use ltrim to take the day, month, year string too. But it's too long. I wonder why there isn't just a date data type? And i can't find out in which situation we need to store millisecond.
The way using the convert function to get the day, month, year that Colin helps works Yulianto! You must convert it into varchar type, not datetime type :
select convert(varchar(100),getdate(),101)
Thanks Colin!
But sometimes i what i want to take is hour and minute  I think the convert function doesn't work on this case. Maybe i should use ltrim again. 
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Blue_Skye wrote:
And i can't find out in which situation we need to store millisecond.
There are a number of reasons for storing milliseconds. For instance, Security audit information often uses milliseconds.
Blue_Skye wrote:
But sometimes i what i want to take is hour and minute I think the convert function doesn't work on this case.
You're right, the function is quite limited and you will need to roll your own conversion if you want anything other than what the CONVERT function supplies.
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Can I use a Parameter ( either in MSAccess / SQL Server ) to set the name of a table which I want to create or get data from .
To make it simple, can I execute an SQL this way,
(Assuming the DB to be MSAccess)
Parameters TableName Text;
SELECT * FROM TableName;
Or is there a workaround for this?
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You for something like that you will need to create dynamic SQL in either .NET or in a Stored Procedure. In other words:
string tableName = "Account";
string sqlQuery = string.Format("SELECT * FROM {0}", tableName);
Here's how you do this in a stored procedure
CREATE PROCEDURE dbo.ExecQuery
(
@tableName varchar(50)
)
AS
declare @sql varchar(100)
set @sql = 'SELECT * FROM ' + @tableName
exec @sql
return 0
The main question is, is this there a different approach all together?
~Javier Lozano
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