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How to alter an existing primary key on SQL Azure?
[Friend] ADD CONSTRAINT [PK_Friend] PRIMARY KEY CLUSTERED ( [UserId] ASC, [Id] ASC ) However, on SQL Azure, when I try to execute the above, it will of course fail: Table ‘Friend’ already has a primary key defined on it. Tables without a clustered index are not supported in this version of SQL Server.
How to rename PRIMARY KEY constraint in SQL Server?
You noticed that in one of the database the Primary Key Constraints are not following your company naming convention standards that is “Pk_SchemaName_TableName_ColumnName” as shown below in red. First of all we need to find the Primary Key Constraints which do not follow naming convention standards.
How to rename a check constraint in SQL?
The following examples rename a PRIMARY KEY constraint, a CHECK constraint and a FOREIGN KEY constraint. When renaming a constraint, the schema to which the constraint belongs must be specified. USE AdventureWorks2012; GO — Return the current Primary Key, Foreign Key and Check constraints for the Employee table.
Is the unique key constraint supported in azure?
UNIQUE constraint is only supported with NOT ENFORCED is used. For syntax, check ALTER TABLE and CREATE TABLE. FOREIGN KEY constraint is not supported in dedicated SQL pool.
Can you alter primary key column in ALTER TABLE?
You can use Alter table Alter column to make changes to your columns’ data type, but there are some restrictions. In your case, you are running into issue with the Primary key constrain on your primary key column. “The modified column can’t have a PRIMARY KEY or FOREIGN KEY constraint defined on it.”
How to change the primarykey column datatype?
You can drop the constrain, change data type and reassign the primary key to the column. Try this to see whether it works for you.
How to change primary column in SQL Server?
If you want to see the code for such a change, before saving, you can right-click >> “Generate Change Script ..”. Preview changes or save them in file. This works for any change to the table, just bare in mind that SSMS creates a temporary second table to do the difficult changes like primary column type change.