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SQL•SQL References

SQL ALTER COLUMN Keyword

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Core idea

What is the main idea behind SQL ALTER COLUMN Keyword?

Lesson checks

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Short Mimo-style checks built from this lesson's code, terms, and sequence.

1Quick choice

Which statement best captures the main point of this lesson?

2Fill blank

Complete the missing token from the example code.

___ TABLE Employees

Alter Column

The ALTER COLUMN command is used to change the data type of a column in a table.

The following SQL changes the data type of the column named "BirthDate" in the "Employees" table to type year:

Example

ALTER TABLE Employees
ALTER COLUMN BirthDate
 year;

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SQL ALTER Keyword

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SQL ALTER TABLE Keyword