What SQL command can be used to add columns to a table?

A ALTER TABLE TableName ADD ColumnName
B ALTER TABLE TableName ADD COLUMN ColumnName
C MODIFY TABLE TableName ADD ColumnName
D MODIFY TABLE TableName ADD COLUMN ColumnName

Correct Answer: ALTER TABLE TableName ADD ColumnName

To add columns to a table in SQL, you can use the ALTER TABLE TableName ADD ColumnName command. Option A is the correct choice for adding new columns to an existing table. Options B, C, and D do not represent the standard SQL syntax for adding columns.

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