Oct 15, 2016 · ALTER TABLE Yourtable -- Table Name DROP CONSTRAINT PK_primarykey_name -- Primary Key name If you don't know the primary key constraint name …

I need to drop the primary key of a table Student in a SQL Server database. I have edited in the table and the script I got is. ALTER TABLE dbo.Student DROP CONSTRAINT …

Using: SQL Server Database: Northwind. I'd like to drop a table primary key, without knowing the PK constraint name. E.g., using the Categories table in the Northwind Sample database, the …

May 2, 2011 · CREATE TABLE #Tempbox (Id int primary key identity(1,1), Name varchar(200) unique) creating a table with column Id, and name, notice it doesn't have constraint name. …

Apr 24, 2015 · You need to drop the constraint, the name of which can be found in the Keys folder of the table in SQL Management Studio. ALTER TABLE t_data_dnefrc DROP CONSTRAINT …

SELECT 'ALTER TABLE ' + OBJECT_NAME(OBJECT_ID) + ' DROP CONSTRAINT ' + name FROM sys.indexes WHERE is_primary_key = 1 use that result set, copy & paste that into a …

Sep 30, 2015 · I ran a quick test where I opened a transaction, selected all rows from the table then sleep for 10s, ran the drop and create constraint statements, then selected again and …

May 15, 2012 · How to DROP PRIMARY KEY from Column in SQL Server 2008 R2. 19. Changing primary key value for a database ...

Oct 25, 2014 · CREATE TABLE #mytable (Date_ DATETIME NOT NULL, Name_ CHAR(50) NOT NULL, VALUE_ INT ) ALTER TABLE #mytable ADD PRIMARY KEY CLUSTERED (Date_, …

May 6, 2018 · SELECT name FROM sys.key_constraints AS pk WHERE pk.parent_object_id = OBJECT_ID(N'OLTMS_0B8DF2') AND type = 'PK'; If you have foreign key constraints …