Changing A Column Datatype
Dec 2, 2006Hello I am having a table
table1
col1 (bit)
and i want to changethe col1 type for smallint
col1 (smallint)
true will be = 1
and false = 0
how can i do it ??
thank you
Hello I am having a table
table1
col1 (bit)
and i want to changethe col1 type for smallint
col1 (smallint)
true will be = 1
and false = 0
how can i do it ??
thank you
Hi guys,
Is there any way or method to CHANGE the DATATYPE of a column in a published table being used for transactional replication (MSSQL 2000), WITHOUT DROPPING THE SUBSCRIPTION ????
Im stuck in this mess and do have the option to drop the subscription, alter the table, create the subscription and rerun the snapshot or to recreate it by Manual Synchronisation either.
Can anyone help? Has anyone been across this dilemma before and have troubleshooted the problem? If yes, help is much appreciated.
MY PROBLEM:
~~~~~~~~~~~~~
'MyTable' is currently being published and has subscriptions to it. The PRIMARY KEY column 'id' has an Identity property as well. 'id' is of datatype smallint, however because of bad planning, i now need to change that datatype to an integer to support a larger range WITHOUT DROPPING SUBSCRIPTIONS.
I CANT DROP THE COLUMN EITHER AS IT IS BEING THE PRIMARY KEY COLUMN.
IS THERE ANY OTHER WAY I CAN DO TO ARCHIEVE MY GOAL? THANKYOU.
I am trying to make the following update: All the columns are fine except for the 'name' column. datatype for 'name' column in the target table is varchar(30) and the datatype for 'name' in the sourcetable is varchar(40), I cannot change the datatype of the column 'name' to varchar(40) because I am told it may affect performance. what I want to do is just update the first 'name' column of the target table by the first 30 characters of the source table column 'name'
I am using the following query, is it possible to do it or are there any other ways I can update the column without changing the datatype?
MERGE INTO [S].[dbo].[AF_Copy] AS TargetTable
USING (SELECT source_code, name, addr1, city, zip FROM
[D].[D_TEST].[dbo].[SO_Copy]) AS SourceTable
ON ([TargetTable].[Code] = [SourceTable].[source_code])
[code]...
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I'm trying to change the data type on a column in a table that is used for a merge-replication with another (identical) DB.
I get this error:
Cannot alter the table '[Tablename]' because it is being published for replication.
I've tried to remove that specific table from the publication (Publication properties -> Articles tab) so I can change the data type and then put the table back into the publication, but I can't (probably because it's a MERGE rep.)
Any ideas ?
/CN
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Hi,
I need to change the datatype of a very large table from smallint to int...
What would be an ideal solution to get this done in least amount of time. May be I can try with ALTER but , I am not sure about the time it would take ...and the page splits etc..
pls help on the same!!
Thanks
Cheriyan.
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A table consists of a column with name "Createddate" with datatype smalldatetime.
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Mar 12 2008 11:38AM
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thanks & regards
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I Have table Emp contains 3 columns one column is EName that datatype is char. now I want to change char to Varchar(4) . but column is primary key . and it is refernced by othertable columns .
i write query
alter table emp alter column ename varchar(4)
but it throws an error is
Msg 5074, Level 16, State 1, Line 1
The object 'PK_emp is dependent on column 'Ename'.
Msg 4922, Level 16, State 9, Line 1
ALTER TABLE ALTER COLUMN ename failed because one or more objects access this column.
please help me
asap.
Regards
Swamy
Hello,
I'm having trouble extracting the datetime value of a datacolumn in order to compare it's value to another datetime. The error I get is "unable to cast object of type System.Data.DataColumn to type System.DateTime. I'm sure I'm just missing a step or a cast, but nothing has worked. I hope someone can help!
Here's the code:
protected void ddlRooms_SelectedIndexChanged(object sender, EventArgs e)
{
SqlCommand cmd;
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["EventBookingConnectionString"].ConnectionString);
SqlDataAdapter da;
DataSet ds;
try
{
cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT Events.ID as 'Event ID', Name as 'Event Name', Rooms.Room as 'Event Room', AttendeeList as 'Attendee List', EventDate as 'Event Date' from Events INNER JOIN Rooms on Events.Room=Rooms.ID";
ds = new DataSet();
da = new SqlDataAdapter();
da.SelectCommand = cmd;
da.Fill(ds, "BookedRooms");
if (ds.Tables["BookedRooms"].Columns["Event Room"] != null)
{
foreach (DataRow row in ds.Tables[0].Rows)
{
string room = (string)row["Event Room"];
if (ddlRooms.SelectedItem.ToString() == room)
{
System.DateTime date = (System.DateTime)ds.Tables[0].Columns["Event Date"]; //HERE'S WHERE THE ERROR OCCURS
if (Calendar1.SelectedDate == date)
{
lblBookedRooms.Visible = true;
lblBookedRooms.Text = "I'm sorry, that room is booked for that day.<br />Please choose another day or a different room.";
}
}
}
}
}
catch (Exception ex)
{
lblResults.Text = ex.Message;
}
}
Thanks in advance to anyone willing to help out!
Monster
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Hi guys,
I have a table with following columns and records.
Empid Empname Phone Flag
14 Rajan 2143 116 Balan 4321 122 Nalini 3456 023 Ganesh 9543 0
Now i need to create a stored procedure which will convert the flag values to vice versa since it is a bit datatype. That is if execute the stored procedure it should convert all the flag values to 1 if it zero and zero's to 1. How? Pls provide me the full coding for the stored procedure.
Thanx.