alter column datatype in sql server code example
Example 1: sql change column types
ALTER TABLE table_name
ALTER COLUMN column_name datatype;
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);
Example 2: sql server alter column
ALTER TABLE table_name
ALTER COLUMN column_name new_data_type(size);
Example 3: sql alter column size
ALTER TABLE table_name
ALTER COLUMN column_name datatype;
Example 4: sqlserver add column to table
ALTER TABLE dbo.doc_exa
ADD column_b VARCHAR(20) NULL,
column_c INT NULL ;
Example 5: alter table modify column
ALTER TABLE table_name
MODIFY column_name datatype;
ALTER TABLE product
MODIFY description VARCHAR2(500 char);