How To Change The Datatype Of A Column Without Dropping The Table?

Jan 11, 1999

Can anyone tell me how to change the datatype of a column.
Without dropping and recreating the table...
The table is empty...




THNK YOU VERY MUCH...

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create table dbo.IdentityTest
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descript varchar(255) null,
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CREATE TABLE #Activities(activityName NVARCHAR(100))

INSERT INTO #Activities VALUES('Field phase S14-04932-01')
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[Code] ....

The output of the query is like this:

A1
A2
A3
A4
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E10
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[Code] .....

The output what I require is this:

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A2
A3
A4
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Ex:

Table: netComputers(3 rows)
Column Name: ipAddress (string data type)

ipAddress
0.0.18.1
0.1.1.2
0.0.0.1

Sql query : if I use the query

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Gives result as :
ipAddress
0.0.0.1
0.1.1.2
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Where as expected result should be:

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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.

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I appreciate your help.

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Hello



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Hi,

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sID INTEGER NOT NULL,
pID INTEGER NOT NULL,
cID INTEGER NOT NULL,
err TINYINT NOT NULL,

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[Code] ....

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The error message is:

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Server: Msg 4922, Level 16, State 1, Line 1
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View2, Column4
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/***** Set Up Test Data *****/
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DROP VIEW dbo.[View1]
GO
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[Code] ....

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