How to Get Year And Month Of A Date Using Oracle?

To get the year and month of a date in Oracle, you can use the following SQL query:

SELECT EXTRACT(YEAR FROM your_date_column) AS year, EXTRACT(MONTH FROM your_date_column) AS month FROM your_table_name;

This query will extract the year and month from the date stored in the specified column of the specified table. You can replace "your_date_column" and "your_table_name" with the actual column name and table name in your database. The EXTRACT function is used to extract the specified part (YEAR or MONTH) from a date.

What is the function to display the day of the week from a date in Oracle?

The function to display the day of the week from a date in Oracle is TO_CHAR with the format model 'DAY'. Here is an example query:

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SELECT TO_CHAR(your_date_column, 'DAY') AS day_of_week
FROM your_table;

Replace your_date_column with the column name where the date is stored, and your_table with the table name. This query will return the day of the week (e.g. Monday, Tuesday, etc.) for each date in the specified column.

How to extract year and month using built-in functions in Oracle?

You can use the EXTRACT function in Oracle to extract the year and month from a date. Here is an example of how to extract the year and month using this function:

To extract the year:

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SELECT EXTRACT(YEAR FROM your_date_column) AS year
FROM your_table_name;

To extract the month:

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SELECT EXTRACT(MONTH FROM your_date_column) AS month
FROM your_table_name;

Replace your_date_column with the column name that contains the date you want to extract the year and month from, and your_table_name with the name of your table.

How to calculate the age from a given birthdate in Oracle?

You can calculate the age from a given birthdate in Oracle by using the months_between function to determine the number of months between the birthdate and the current date, and then dividing that number by 12 to get the number of years.

Here is an example SQL query:

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SELECT TRUNC(MONTHS_BETWEEN(SYSDATE, birthdate) / 12) AS age
FROM your_table_name
WHERE your_condition_here;

Replace your_table_name with the name of your table and your_condition_here with any conditions you want to apply to the query. This query will return the age of each record in the table based on the birthdate column.

How to extract month from a date in Oracle?

You can use the EXTRACT function in Oracle to extract the month from a date. Here is an example query:

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SELECT EXTRACT(MONTH FROM your_date_column) AS month
FROM your_table;

Replace your_date_column with the column that contains the date you want to extract the month from, and your_table with the name of the table where the data is stored. This query will return the month as a number (1 for January, 2 for February, and so on).

How to filter data based on year and month in Oracle?

You can filter data based on year and month in Oracle using the EXTRACT function along with the TO_DATE function. Here's an example query that filters data based on a specific year and month:

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SELECT *
FROM your_table
WHERE EXTRACT(YEAR FROM date_column) = 2022
AND EXTRACT(MONTH FROM date_column) = 10;

In this query:

• EXTRACT(YEAR FROM date_column) extracts the year from the date_column.
• EXTRACT(MONTH FROM date_column) extracts the month from the date_column.
• 2022 is the desired year to filter by.
• 10 is the desired month to filter by.

You can modify the values in the EXTRACT function and the constant values to filter the data based on a specific year and month of your choice.

How to handle leap years when extracting year and month in Oracle?

In Oracle, you can handle leap years when extracting year and month by using the EXTRACT function. Here's an example:

To extract the year and month from a date column that takes leap years into account, you can use the following SQL query:

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SELECT EXTRACT(YEAR FROM your_date_column) AS year,
       EXTRACT(MONTH FROM your_date_column) AS month
FROM your_table;

This query will correctly extract the year and month from the date column, taking into account leap years. The EXTRACT function automatically handles leap years, so you don't need to worry about it when using this function.

Just replace your_date_column with the name of the date column you want to extract the year and month from, and your_table with the name of your table.