How do you change the datatype of a primary key column in SQL Server?

How do you change the datatype of a primary key column in SQL Server?

You can’t change primary key column,unless you drop it.. Any operations to change its data type will lead to below error.. The object ‘XXXX’ is dependent on column ‘XXXX’.

How do I change the datatype of a column in an existing table?

To change the data type of a column in a table, use the following syntax:

1. SQL Server / MS Access: ALTER TABLE table_name. ALTER COLUMN column_name datatype;
2. My SQL / Oracle (prior version 10G): ALTER TABLE table_name. MODIFY COLUMN column_name datatype;
3. Oracle 10G and later: ALTER TABLE table_name.

How do I change primary key?

To set the primary key:

1. Open the database that you want to modify.
2. In the Navigation Pane, right click the table in which you want to set the primary key and, on the shortcut menu, click Design View.
3. Select the field or fields that you want to use as the primary key.

Where does primary key go in partitioning table?

By default indexes are created on the same Data Space (ie Filegroup or Partition Scheme) as the table. So you have to explicitly place the primary key index on a filegroup. Eg BTW this will create Heap table, which is probably the worst option.

Is the column part of the primary key?

This fails because the column is part of the Primary Key in some of the tables (and the columns included in the PK vary from table to table). I really don’t want to have to drop and recreate each PK manually for each table.

Can you specify the type of a partitioned table?

You can’t specify type_name for existing columns of partitioned tables. type_name can be any one of the following types: A SQL Server system data type. An alias data type based on a SQL Server system data type. You create alias data types with the CREATE TYPE statement before they can be used in a table definition.

Can you change the primary key data type?

Thank you. You can’t change primary key column,unless you drop it..Any operations to change its data type will lead to below error.. The object ‘XXXX’ is dependent on column ‘XXXX’.