alter column sql server integer code example

Example 1: sql change column types

ALTER TABLE table_name
ALTER COLUMN column_name datatype;

-- Example
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);

Example 2: alter table query sql server change column

ALTER TABLE employees
  ALTER COLUMN last_name VARCHAR(75) NOT NULL;

Example 3: alter table query sql server change column

sp_rename 'table_name.old_column_name', 'new_column_name', 'COLUMN';

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