change field size in SQL

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Hey guys

Is it possible changing a field size in SQL?
I created a table with a line called "description" with a field size of max. 20 characte. Now, I want to change this number into 30 but not by just entering this number in the properties of the field, I want to use SQL-Code.

Can anyone help me?

Greetings
Epanjohura

Posted 17-Dec-12 0:16am

epanjohura

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3 solutions

Solution 1

Assuming you are using SQL server take a look at this link
SQL SERVER – Change Column DataTypes[^]

Posted 17-Dec-12 0:20am

__TR__

Comments

epanjohura 17-Dec-12 6:22am

I'm not using SQL server

__TR__ 17-Dec-12 6:26am

Then i would suggest you to tag your question properly with the database you are using.

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jayantbramhankar · Accepted Answer · 2012-12-17T00:22:00

Solution 2

SQL

ALTER TABLE dbo.tableName
ALTER COLUMN description VARCHAR(30) NOT NULL

Posted 17-Dec-12 0:22am

jayantbramhankar

Comments

epanjohura 17-Dec-12 7:40am

Thanks for your help.
I'll try it as fast as possible and mark your solution as accepted, if it helped me..

epanjohura 18-Dec-12 7:49am

thank you so much, that really helped :)

ankur789 · Accepted Answer · 2012-12-17T20:14:00

Solution 3

SQL

ALTER TABLE [dbo].[Table Name] ALTER COLUMN [Coloumn Name] [DataType Name ](Size Of Data Type u Want)NULL

Posted 17-Dec-12 20:14pm

ankur789

Updated 17-Dec-12 21:42pm

v2

Comments

epanjohura 18-Dec-12 3:13am

Thanks for your help.
I'll try it as fast as possible and mark your solution as accepted, if it helped me..

epanjohura 18-Dec-12 7:49am

thank you so much, that really helped :)