extract.md

📚 EXTRACT

The EXTRACT function is used in SQL to retrieve specific parts of a date or time value, such as the year, month, or day.
It is useful for breaking down timestamps for reporting or filtering.

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🛠️ Basic Syntax

SELECT EXTRACT(part FROM date_column)
FROM table_name;

• part can be YEAR, MONTH, DAY, HOUR, MINUTE, SECOND, etc.
• date_column is the column containing the date or timestamp.

Example

SELECT EXTRACT(YEAR FROM hire_date) AS hire_year
FROM employees;

• This query extracts the year from each employee’s hire date.

Key Points

• Common parts you can extract: YEAR, MONTH, DAY, HOUR, MINUTE, SECOND.
• Some databases (like MySQL) use functions like YEAR(date_column) instead of EXTRACT.
• EXTRACT works with both DATE and TIMESTAMP data types.

Additional Example

SELECT EXTRACT(MONTH FROM order_date) AS order_month
FROM orders;

• This query extracts the month from each order date.

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🎥 Video Notes

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📝 Problem Description

Describe the problem, challenge, or topic discussed in a video related to SELECT FROM.
What concept was explained or what exercise was solved?

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DataBase Given

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💻 My SQL Code

-- Write your SQL code attempt or solution related to SQL COMMAND
SQL COMMAND

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🧠 Solution Code / Explanation

SQL COMMAND

Explanation - Explain what you learned, any key takeaways, or how you solved the problem related to COMMAND._

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