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Quick way to widen a decimal column in place?

Posted By:      Posted Date: September 03, 2010    Points: 0   Category :Sql Server
 
Hi all, I have a table with over 400 million rows in it, and it turns out that one of the columns that was defined as decimal(14,5) needs to be widened to decimal(18,5).  The column is not used an any keys or indexes. What's the fastest way of doing that?  When I attempt to change the column definition (right-click the table in SSMS, select Design, update the column definition, then attempt to save), SSMS complains, saying Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created.... Thanks, Matthew  


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Quick way to widen a decimal column in place?

  
Hi all, I have a table with over 400 million rows in it, and it turns out that one of the columns that was defined as decimal(14,5) needs to be widened to decimal(18,5).  The column is not used an any keys or indexes. What's the fastest way of doing that?  When I attempt to change the column definition (right-click the table in SSMS, select Design, update the column definition, then attempt to save), SSMS complains, saying Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created.... Thanks, Matthew  

Need RegEx for four decimal place

  
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find amounts with more than 2 decimal places in a float type column

  
I was trying to use charindex but that didnt work.  Also what happens if i change the column to money data type? does it round or truncate?

decimal place problem in convert string to double

  

Hi guys, i have a strange error creaping into my web app but am unsure as to how to fix it.  When i run this code on my debug workstation it works fine but when i transfer it to my server things seam to go wrong.

dev station (windows 7) + VS2010
regional and language settings all set to uk
server (windows 2008r2)
regional and language settings all set to uk

What seams to be happening is that when converting a string to a double it works correctly on the dev environment but moves the decimal place to the end on the server.

example code(vb)

dim lat as string = "52.983829"
dim long as string = "-0.036500"

dim latint as double = lat
dim longint as double = long

now on the dev server the value of latint is 52.983829 as you might expect but on when published to the server it becomes 52983829.0

the same with longint on the dev staion it is -0.036500 but on the server it becomes -36500.0

i get equally confusing problems if i try to change it to an integer instead.

 

can anyone help point be in the right direction?


Designing lists: Quick key combination for adding a new list column field?

  

I'm simply looking for a way to quickly design lists, and I find it rather slow to use the mouse to go to the Add New Column button in the ribbon every time when I want to add a new list field.

The only column that can't be changed type of later seems to be the Calculated column. But for all others, you can still change them afterwards.


Create a 12 place decimal value in a select statement

  
I am needing to create a 12 place decimal field in sql2005 using a select statement.  I can do select 999999999.99 as 'Amount' but I really don't want the 9's.  Any idea how this can be done without creating the 9's? 

ASP.NET 4.0: WebForm Routing (quick n dirty version)

  
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Alternating row background for first column of a report

  

is there a way to make the first column of a report use the an alternating background color? 

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In the file below only the textbox for part number does not show an alternating background.  All others work correctly.

<TableRows>
            <TableRow>
              <TableCells>
                <TableCell>
                  <ReportItems>
                    <Textbox Name="PartNumber">
                      <rd:DefaultName>PartNumber</rd:DefaultName>
 

Use a column as parameter for a sds in another column; gridview

  

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Pass a grid column value to a Modal

  

Hi, I have a requirement to hide a field called details on a gridview and show it in a jQuery modal dialog when users click on the Customer ID hyperlink. This grid is created programmatically. I will be hiding the details column via the CSS display:none property. Does some one know how can I pass the grid's selected hidden column value to the modal? Here is some of the code I started:

            GridView mygrid = new GridView();
            //.....................................More columns code for the grid

            //Here is where I need to pass the Details column value associated with the customer ID field selected to the Modal and open the Modal dialog.            
            HyperLinkField linkField = new HyperLinkField();
            string[] dataNavigateUrlFields = { "CustomerID" };
            linkField.DataTextField = "CustomerID";
            linkFi

Bug: Does not change column type from nvarchar to ntext

  

Scenario: If you create a table with a column of type nvarchar, populate it with some content and try to modify it using the WebMatrix editor, from nvarchar to ntext, it does not display any error message or warning that this is not possible. It silently saves and reverts the change, back to nvarchar. Wasted some hours on this issue as I thought my column was ntext, but in fact was still nvarchar.

Expected behavior: It should change to ntext, or if SQL CE doesn't support that, it should notify the user that no change was applied.


Display column from child table. Possible ?

  

Hello,

I'am using dnamic entity with EF4. On a list page of a table, I would like to display a column containing information from a child table of the current element. Sample :

Order List :

Order Data | Required Date | Shipped Date | etc... | ... | Customer Name (foreign key with tostring() method override) | Customer Postal Code (Column that I want to add) |

I don't known how to do that. Is it possible ? Maybe I have to to create my own Metadata proxy that will add dynamicly a column on the MetaColumn list of the table.

Does someone have an easier or better idea ?


Thank you for any help.


Rendering data with HTML tags in the DD Gridview for a selected column

  

I am having trouble finding out where and how to HTML Encode a cell's data on the Dynamic Data (v4.0) gridview of List.aspx.  As a simple case, suppose I have formatted cell data that is A<br/>B in the DB.    Obviously, I want A stacked on B in the cell.

It seems gridView1.HtmlEncode = true has gone away.

So maybe I'll try to catch it on the RowDataBound event:

protected void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)

        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                // Html Encode the cells
            }

        }

but this event never fires?


Has anyone figured out how to properly render HTML tags data in the List.aspx's GridView1? 

If I figure this out, then I can add a MetaAttribute called something like [EncodeAsHtml(true)] and be on my way.  Thanks!


Filter by Computed Column

  

Hello!


After looking for a driver to open legacy dbf drivers to connect, the next level trouble a have is this one:


first, i can retrieve the data but when trying to filter by a parameter (somesc columns) i get an error.

The error says about the database can't determine some blah blah!

The error is a columm tha is formated (  1234  ) about  8 space, fixed. The values in the query appears like that. I resolve this by Trimming Ltrim(ColumnName) and i get this (1234).

Now in SqlExpress, how can i filter by the new Trimmed Expression? (This is a primary key that the DBF use)

Sample:

SELECT column1, column2, column3
TABLE FoxProDB

Now 

SELECT Ltrim(column1) as NewExp, column2, column3
TABLE FoxProDB
Where NewExpre = @NewExpres                  -Error-


Thanx!


Unique text value in databse column

  

Hi Everyone!

I know this is probably a very basic question but how do I keep a column's text values unique in SQL server (ie for a unique username)?  The column is not an integer it's varchar(50), and it's not the primary key but I could make it the primary key if recommended.

The front end could handle it;  where the user would enter text, it's validated, then a query is done to see if that username is available.  If so, then user can decide to choose it and an insert is done, if not they pick a new username and process repeats.  With this approach, the responsibility of keeping the value unique solely rests on the front end, nothing on the database side.

Is this the correct way to handle this? 

Thank you!

 


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