Mar 9, 2009 · I am trying to change a column from a varchar(50) to a nvarchar(200). What is the SQL command to alter this table?

Jun 21, 2016 · ALTER TABLE [dbo.table_name] ADD [Column_Name] BIT NOT NULL Default ( 0 ) Here is another way to add a column to an existing database table with a default value. A …

SQL-script: How to write ALTER statements to set Primary key on an existing table? Asked 13 years, 4 months ago Modified 1 year, 7 months ago Viewed 1.1m times

Apr 13, 2012 · How to change the column size of the salary column in the employee table from numeric(18,0) to numeric(22,5)

SELECT * from history WHERE id is NULL <---- This shows 0 results ALTER TABLE history ALTER COLUMN id int NOT NULL ALTER TABLE history ADD PRIMARY KEY (id) ALTER …

Dec 19, 2022 · ALTER TABLE YourTable ADD Bar INT NOT NULL DEFAULT(0) /*Adds a new int column existing rows will be given the value zero*/ In SQL Server 2008 the first one is a …

Jan 12, 2012 · In Microsoft SQL Server Management Studio, you can also right-click a table and select "Design" to open the design view. From here you are presented with a list of each …

ALTER TABLE dbo.MyTable ALTER COLUMN Created DATETIME NOT NULL Is there any way to also specify the default value as well on the ALTER statement?

Jan 24, 2015 · I need to ALTER the data types of several columns in a table. For a single column, the following works fine: ALTER TABLE tblcommodityOHLC ALTER COLUMN …

Sep 17, 2010 · My MS SQL Server will allow me to run "ALTER TABLE table_name ADD UNIQUE (column_name)" as many times as I want. If I then go into SQL Management Studio …