How to Get the Year From the Max Date In Oracle Sql?

To get the year from the maximum date in Oracle SQL, you can use the EXTRACT function along with the MAX function. First, you would select the MAX date from your table using the MAX function. Then, you can use the EXTRACT function to extract the year from that maximum date. The syntax would be something like this:

SELECT EXTRACT(YEAR FROM MAX(date_column)) AS max_year FROM your_table;

This query will return the year from the maximum date in the specified date column of your table.

What is the MODE function in Oracle SQL?

The MODE function is used in Oracle SQL to find the most frequently occurring value in a set of values. It is often used to determine the most common value in a column of a table.

What is the MEDIAN function in Oracle SQL?

The MEDIAN function in Oracle SQL is used to find the median value of a set of values in a column. The median is the middle value of a dataset when it is sorted in ascending order. It is useful for finding the middle value in a dataset that has outliers or is not normally distributed.

The syntax for the MEDIAN function is:

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SELECT MEDIAN(column_name) 
FROM table_name;

This will return the median value of the specified column in the table.

How to group by year in Oracle SQL?

To group by year in Oracle SQL, you can use the EXTRACT function to extract the year from a date column and then group by that result. Here's an example query that groups a table by year:

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SELECT EXTRACT(YEAR FROM date_column) AS year,
       COUNT(*) AS total_records
FROM your_table
GROUP BY EXTRACT(YEAR FROM date_column)
ORDER BY year;

In this query:

• EXTRACT(YEAR FROM date_column) extracts the year from the date_column in each row.
• COUNT(*) calculates the total number of records for each year.
• GROUP BY EXTRACT(YEAR FROM date_column) groups the results by the extracted year.
• ORDER BY year sorts the results by year in ascending order.

You can replace date_column with the actual column name in your table, and your_table with the actual table name that you are working with.

What is the NEXT_DAY function in Oracle SQL?

The NEXT_DAY function in Oracle SQL is used to find the date of the next occurrence of a specified day of the week after a given date. The syntax is as follows:

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NEXT_DAY(date, day_of_week)

Where date is the starting date, and day_of_week is the day of the week (in English) for which you want to find the next occurrence.

For example, if you want to find the next Monday after a given date, you can use the NEXT_DAY function like this:

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SELECT NEXT_DAY('2022-01-15', 'MONDAY') FROM dual;

This will return the date of the next Monday after January 15, 2022.