Change The Column_Name – Data Type With A Query? Possible?

Apr 6, 2004

Hi everyone,

I’ve got a small question: Is it possible to change the Column_Name – Data Type from a SQL table with a query?

I want to do this with a query.

The Data Type ‘ntext’ must be changed to ‘text’

Thanks in advance!

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DTS Error: Data For Source Column 2 (‘column_name) Is Too Large For The Specified Buffer Size.

Oct 4, 2005

Hi,
 
I’m attempting to use DTS to import data from a Memo field in MS Access (Jet 4.0 OLE DB Provider) into a SQL Server nvarchar(4000) field.  Unfortunately, I’m getting the following error message:
 
Error at Source for Row number 30. Errors encountered so far in this task: 1.
Data for source column 2 (‘Html’) is too large for the specified buffer size.
 
I also get this error message when attempting to import the same data from Excel.
 
Per the MS Knowledgebase article located at http://support.microsoft.com/?kbid=281517, I changed the registry property indicated to 0.  This modification did not help. 
 
Per suggestions in other SQL Server forums, I moved the offending row from row number 30 to row number 1.  This change only resulted in the same error message, but with the row number indicated as “Row number 1â€?.  (Incidentally, the data in this field is greater than 255 characters in every row, so the cause described in the Knowledgebase article doesn’t seem to be my problem).
 
You might also like to know that the data in the Access table was exported into this table from a SQL Server nvarchar(4000) field.
 
Does anybody know what might trigger this error message other than the data being less than 255 characters in the first eight rows (as described in the KB article)?
 
I’ve hit a brick wall, so I’d appreciate any insight.Thanks in advance!

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Oct 3, 2007



Is there anyway to change the data type of a variable while in an expression?
My problem is I am trying to compare a variable w/ a string data type to a variable w/ an object data type. I would change the data type of the variable from object to string but if I do that my sql task fails when it tries to write a value to that variable. The variable w/ the object data type is the result of an openquery sql stmnt. So I guess there are two ways around my problem.

1. Change data type of variable while in an expression..ie flow constriant
or
2. Change data type of vraiable from object to string and still get the openquery result to work.

Any help???
Thanks !!

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May 14, 2008



Hi.

I have tables (they are empty and there are no constraints) with columns typed as varchar. In a database I want to change the type of all the varchar columns in all the tables from varchar to nvarchar. What's the best way to do it? Can you suggest code?

I know that to get all the relevant columns I would issue a query like this

select *
from information_schema.columns
where data_type = 'varchar'

Then I would use a cursor... And that's exactly what I would not like to do. Is there any other way?

Thanx.
Darek

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I have a table say Friend which has a column "IsSingle VARCHAR(10)" and this column has values like yes or No
Now I want to change type of column IsSingle from VARCHAR to BIT, if I try to do it manaually SQL throws error that cannot convert yes to bit etc.
I know that we can write a script to do this task but i dont know how ?
Any pointers,links, suggestions will help me to start with.
 
Thanks for your help. 
 
 

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Hello,



I have a SQL update statement that updates some user names, however, the user names exceed the length of the data type. Currently, for the column username the data type is set to nvarchar (8).



How can I change that to nvarchar(10) in a SQL Update statement?



Thanks in advance.

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Dec 11, 2007



Hi All,

I am using SQL Server 2000 Enterprise Edition fully patched. Database is in Simple Recovery mode.

I need to change a column's data type from "int(4)" to "smallint(2)". I know for sure that there will be no data (precision) lost, because I know the possible values that this column could have.

My problem is that the table I am dealing with has 600,000,000 records in it. I dropped all indexes before I tried to alter the table. But still it is taking forever and filling up my 280GB disk with transaction log file.

I know that in Oracle, if I want I can turn off logging and do these kind of modifications relatively faster.

I was wondering if there is a way of disabling logging before running this alter command.

What is the best practice to handle a situation of this sort?

I appreciate your help.

Thanks in advance,
Sinan Topuz

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Now the format i have is: 2015-11-16 09:04:00.000

And i want this format: 16.11.2015 09:04:00

Is any way to convert automaticaly by select only column? or can i change at all once? or must write function to when i select the column can change automatic ? or another thing, i ve see in column properties something like formula. In computed column specification in formula i wrote this: 

((CONVERT([varchar](10),getdate(),(104))+' ')+CONVERT([varchar](10),getdate(),(108)))

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Hi

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Thanks in Advance
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Jan 11, 2006

Hi
 
I have Try to Create Stored Procedure in C# with the following structure
 
[Microsoft.SqlServer.Server.SqlProcedure]
public static void sp_AddImage(Guid ImageID, string ImageFileName, byte[] Image)
{
       
}
 
But  when I try to deploy that SP to SQL Server Express  , The SP Parameters become in the following Stature
 
@ImageID uniqueidentifier
@ImageFileName nvarchar(4000)
@Image varbinary(8000)
 
But I don€™t want that Data types .. I want it to be in the following format
 
@ImageID uniqueidentifier
@ImageFileName nText
@Image Image
 
 
How Can I Control the data type for each parameter ??
Or
How Can I Change the data type of the parameter for the Deployed Stored Procedure ??
Or
How Can I defined the new Data type ??
 
Or
 
What's the solution to this problem ??
 
Note : I get Error when I try to use Alert Statement to change the parameter Data type for the SP
 
ALTER PROCEDURE [dbo].[sp_AddImage]
      @ImageID [uniqueidentifier],
      @ImageFileName nText,
      @Image Image
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME [DatabaseAndImages].[StoredProcedures].[sp_AddImage]
GO
 
And thanks with my best regarding
Fraas

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Dec 10, 2014

I need to update a large table, about 55 million rows, without filling the transaction log, in the shortest time as possible. The goal is to alter the table and change the data type for Text column from VARCHAR(7900) to NVARCHAR(MAX).

Since I cannot do it with an ALTER TABLE statement (it would fill up the transaction log) I'm thinking to:

- rename column Text in Text_OLD
- add Text column of type NVARCHAR(MAX)
- copy values in batches from Text_OLD to Text

The table is defined like:

create table DATATEXT(
rID INTEGER NOT NULL,
sID INTEGER NOT NULL,
pID INTEGER NOT NULL,
cID INTEGER NOT NULL,
err TINYINT NOT NULL,

[Code] ....

I've thought about a stored procedure doing this but how to copy values in batch from Text_OLD to Text.

The code I would start with (doing just this part) is the following, but maybe there are more efficient ways to do it, or at least there's a better way to select @startSeq in the WHILE loop (avoiding to select a bunch of 100000 sequences and later selecting the max).

declare @startSeq timestamp
declare @lastSeq timestamp
select @lastSeq = MAX(sequence) from [DATATEXT] where [Text] is null
select @startSeq = MIN(Sequence) FROM [DATATEXT] where [Text]is null
BEGIN TRANSACTION T1
WHILE @startSeq < @lastSeq

[Code] ....

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TITLE | _title
LEARNINGLEVEL | _learningLevel
coursetitle | _courseTitle

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the datasXML has some XML datas, there into one data is:
<root>      <item val="true"></item>      <others ... /></root>
Now,I want to query this table's datasXML column,and root/item value is true.
How to design this SQL string?
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Ray Lynn

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Hi there

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Dept, TotalProj
A , 10
B , 5
C , 2

Question: How do I change the query so that the result will return as follows:

Dept/TotalProj
A, B, C
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Nov 13, 2007



Hi All,

I have some problems when changing and running report subscription in the existing data-driven Email subscription using console app.

arg[0] is the ReportID
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I passed these parameters in command_line when I call the executable. (e.g RunSubscription.exe 1 2)

After I run my application, the query changed successfully,
however, I didn't get the email from the subscription So I checked the subscription status,
Error: Cannot create a connection to data source ''.

If I remove the get & set subscription property codes, then application runs fine but then I can't change the query on the fly. Please help!!! I will be very appreciate if someone can give me some helps or suggestion.




static void Main(string[] args)

{

ReportService.ExtensionSettings ExtensionSetting;

ReportService.DataRetrievalPlan DataRetrievalPlan;

String Description;

ReportService.ActiveState ActiveState;

String Status;

String EventType;

String MatchData;

ReportService.ParameterValueOrFieldReference[] Parameter;



ReportService.ReportingService2005 MyRS = new ReportService.ReportingService2005();

MyRS.Credentials = System.Net.CredentialCache.DefaultCredentials;





ReportService.Subscription[] subs = MyRS.ListSubscriptions("/MyReports/" + args[0], null);



if (subs != null)

{

int i=0;

while (i < subs.Length)

{


// Get Subscription Property

MyRS.GetDataDrivenSubscriptionProperties(subs.SubscriptionID, out ExtensionSetting, out DataRetrievalPlan, out Description, out ActiveState, out Status, out EventType, out MatchData, out Parameter);

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MyRS.SetDataDrivenSubscriptionProperties(subs.SubscriptionID, ExtensionSetting, DataRetrievalPlan, Description, EventType, MatchData, Parameter);



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Console.WriteLine("Event Fired: "+ subs.SubscriptionID);

i++;

}

}


} //main

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At first I thought the problem is with the date, but then I can see
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anyone having this problem before?? hopefully you guys can help.

Thanks,

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Hi,

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Thanks

Yaksh

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Hi,

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this.court0TableAdapter1.Update(this.mycourtsDataSet1.Court0);

this.mycourtsDataSet1.AcceptChanges();

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This did not happen with VS2005/CE3.01.

I have tried changing all references to decimal (or money in CE3.5) without luck.

I'm beginning to think that string may be the way to go!!!!!!!

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Thanks,

Later:

It's necessary to update the datatable adapter as the 3.01 and 3.5 CE are not compatible.

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I need to copy rows from Oracle to SQL Server using SSIS. I used the Data Conversion transformation editor to change it to DT_DATE, but the rows are not being inserted to the destination.

On Error, If I fail the component, then the error is :

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Regards

RH

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See example snippet bellow (first IIF statement)

/*Calendar*/
[Date Calculation].[Calculation].[Calendar Actual versus PY WK %] =
IIF
(
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[Code] ....

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0.50
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1.25
0.75
0
0
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