Question

Write down the syntax to modify a column (eg change field name or datatype).

Answer 1

To modify a column in a database, use the ALTER TABLE statement with the appropriate syntax to rename a column or change its datatype, while noting that syntax may vary by DBMS.

Step-by-step explanation:

To modify a column in a database table, such as changing the field name or datatype, you use the ALTER TABLE statement in SQL. The syntax for modifying a column name is:

ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name;

To change the datatype of a column, you would use the following syntax:

ALTER TABLE table_name MODIFY column_name new_datatype;

Remember that the exact syntax can vary depending on the database management system (DBMS) you are using, such as MySQL, PostgreSQL, or SQL Server. Always check the documentation for the specific commands and syntax supported by your DBMS.