How To Change Tipe From Varchar To Text

Dec 18, 2002

Please, i have a big db with a "VarChar" field (8000 char) and now i need more "space".
I can use "Text" but how i can convert all my data?
If i try to change from the Enterprise Manager i loose all data!!!!

:confused: :confused: :confused:
Please, help me!

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Replace Text In Text, Char && Varchar Fields All At Once?

Jan 22, 2008

I have followed many tutorials on selecting and replacing text in text fields, varchar fields and char fields, but I have yet to find a single script that will to all 3 based on field type. Let's assume for a moment that I don't know where all in my database a certain value that I need changed resides ... i.e., the data's tablename and fieldname. How would I go about doing the following ... or more importantly, is this even possible in a SQL only procedure?1) Loop over entire database and get all user tables2) Loop over all user tables and get all fields3) Loop over all fields and determine the field type4) switch between field types and change a string of text from 'a' to 'b'Please be gentle, I'm a procedure newb.

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May 15, 2008

I have a column that is set to VARCHAR 1 and want to change it to NUMERIC 5,2

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Cheers,
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Feb 28, 2001

Hi,

I have to change a due_date field with a varchar(10) to a datetime. I created a new table with datetime but when I imported data into the table it errored out due to the datatype. A varchar(10) going into a datetime(8).

Is there way to resolve this without losing data?. or how do you result this problem?.

Thanks for your help,
Jeff.A.

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Nov 27, 2007

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tried
Monday, Nov. 26, 2007
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so then I tried
Monday, Nov. 26, 2007
"FontColor = Blue FontWeight = Bold " & John Doe & CHAR(9) & "FontColor = Red FontWeight = Normal " & Jane Smith & CHAR(9) & "FontColor = Black FontWeight = Bold" John Roberts

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Monday, Nov. 26, 2007
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Nov 14, 2007

Hello,

I would like to change the datatype on a particular column from varchar to bigint across 100's of tables within a database.

I have the command ready which is:

ALTER TABLE tablename ALTER COLUMN columnname BIGINT

The problem happening is that it seems there are constraints across all the columns in every tables.

The error message is:

Server: Msg 5074, Level 16, State 1, Line 1
The object 'DF__tablename__columnname__0ABD916C' is dependent on column 'columnname'.
Server: Msg 4922, Level 16, State 1, Line 1
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I understand that if I delete this constraint, then it will let me modify the datatype of the column, but since there are tons of them and they are randomly named, how do I achive changing the datatype across multiple tables in bulk.

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Sep 10, 2007

Hi,
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Regards
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Oct 17, 2014

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Aug 14, 2007

I have a table with a column of varchar(4000) and another table with 2 columns that are varchar(2000)
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The varchar(4000) column has a full text index on it.
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Thank you

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Sep 15, 2005

Hi ,

 I have a website where we review cds ... the users write their own reviews ...

But when the reviews are displayed on screen all the breaks are gone and all the text comes in one block .
Can anyone advise on what to do ?

I tried to change from varchar to text but it didn't change anything.

Thanks for the help

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Hello, I have read that microsoft is getting rid of the text datatype and replacing it with varchar. The maximum that varchar can hold is 8000 bytes. Is there a way to get above 8000 bytes without using text?

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Hi,What is the maximum character a text type column can contain ? Can'tchange the length to upper than 16....What is the bigger ? Varchar(8000) or Text ?Regards

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Mar 18, 2004

Hi all
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best regards

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thanx, it's a very hard question for me!

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Jun 25, 2001

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Dec 11, 2007

Hello Guys.

Here is my issue i have email addresses in a column of a table in sql server. Are addreses has changed since and i need to do a mass update of these email addreses i need to replace a few char to reflect this change like ex:

AAAAA@BBB.CCC.Com i need to replace the BBB. part with nothing so that it looks like this AAAAA@CCC.Com.

Please help.

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Oct 22, 2007

hi,

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Jul 20, 2005

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Oct 12, 2006

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HELP: Text And Varchar Are Incompatible Agrivation!

Apr 26, 2007

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SettingsDeanMy DocumentsVisual Studio 2005ProjectsMsgSRXMsgSRXServiceApp_CodeRelayService.vb:line 377   --- End of inner exception stack trace ---"  Node=""  Role=""  Source="System.Web.Services"  StackTrace:       at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)       at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)       at ChatClient.MsgSRX.RelayService.SendMessage(String msg, String AccessID, Int64& MsgID) in C:Documents and SettingsDeanMy DocumentsVisual Studio 2005ProjectsMsgSRXChatClientWeb ReferencesMsgSRXReference.vb:line 342       at ChatClient.Form1.btnSend_Click(Object sender, EventArgs e) in C:Documents and SettingsDeanMy DocumentsVisual Studio 2005ProjectsMsgSRXChatClientForm1.vb:line 13       at System.Windows.Forms.Control.OnClick(EventArgs e)       at System.Windows.Forms.Button.OnClick(EventArgs e)       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ContextCallback callback, Object state)       at System.Threading.ThreadHelper.ThreadStart() ... Here is the source code to the method I am using ... Private Function ValidAccessID(ByVal ID As String) As Boolean        Dim conn As New SqlConnection()        conn.ConnectionString = ConfigurationManager.ConnectionStrings("dbConnect").ConnectionString        Dim cmd As String        cmd = "SELECT AccessID, ExpireTime "        cmd &= "FROM AccessIDNumbers "        cmd &= "WHERE AccessID IN ('" & ID & "')"        ' cmd &= "WHERE AccessID ='@ID'"        Dim C As New SqlCommand(cmd, conn)        ' C.Parameters.AddWithValue("@ID", New SqlTypes.SqlString(ID))        '  C.Parameters.Item("@ID").SqlDbType = SqlDbType.Text        conn.Open()        Dim Count As Integer = 0        Dim reader As SqlDataReader = C.ExecuteReader        Dim expired As Boolean = False        If reader.HasRows Then            While reader.Read                Count += 1                Dim et As SqlTypes.SqlDateTime                et = SqlTypes.SqlDateTime.Parse(reader("ExpireTime"))                Dim ct As New SqlTypes.SqlDateTime(Now)                If ct > et AndAlso expired = False Then expired = True            End While        End If        conn.Close()        C.Dispose()        C = Nothing        conn.Dispose()        conn = Nothing        Return expired = False    End Function ... the problem is with the  cmd &= "WHERE AccessID IN ('" & ID & "')" statement. How Can I get this to work properly!!! My data types for the AccessIDNumbers table are as fallows ..UserName -> text -> nulls not allowedAccessID -> text -> nulls not allowedCreationTime -> datatime -> nulls not allowedExpireTime -> datatime -> nulls not allowedCurrentTable -> text -> nulls allowedI don't understand why I'm getting this error!!! 

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Oct 27, 2007

I encounter this particular error.
Exception Details: System.Data.SqlClient.SqlException: The data types varchar and text are incompatible in the equal to operator.
Line 21:             Dim reader As SqlDataReader = command.ExecuteReader() 
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Dim querystring As String = "SELECT Password FROM Member WHERE Username = @username"

'Dim conn as SqlConnection
Using conn As New SqlConnection(ConfigurationManager.ConnectionStrings("mainconnect").ConnectionString)
Dim command As New SqlCommand(querystring, conn)
command.Parameters.Add("@username", SqlDbType.Text)
command.Parameters("@username").Value = txtLogin.Text
conn.Open()

Dim reader As SqlDataReader = command.ExecuteReader()
While reader.Read()
password = reader("Password").ToString()
End While

reader.Close()

End Using
 
My database:
User_ID int(4)
Username varchar(50)
Password varchar(255)
Email varchar(50)
 
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Aug 16, 2000

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[Microsoft][ODBC SQL Server Driver][SQL Server]The statement has been terminated.


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Feb 2, 2005

Hi, all
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May 29, 2008

I am trying to add a carriage return to the end of a text field through a script. This is what I'm trying:


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I also tried

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Thanks in advance
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Jun 15, 2001

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dn

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create table tblxmldata
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I am stuck! and need help!

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Within a stored procedure called Store_Check, I need to dynamically build a string (@string) using VARCHAR(255) since the text datatype can't be used in a stored procedure.

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