Dear readers of our blog, we'd like to recommend you to visit the main page of our website, where you can learn about our product SQLS*Plus and its advantages.
 
SQLS*Plus - best SQL Server command line reporting and automation tool! SQLS*Plus is several orders of magnitude better than SQL Server sqlcmd and osql command line tools.
 

REQUEST COMPLIMENTARY SQLS*PLUS LICENCE

Enteros UpBeat offers a patented database performance management SaaS platform. It proactively identifies root causes of complex revenue-impacting database performance issues across a growing number of RDBMS, NoSQL, and deep/machine learning database platforms. We support Oracle, SQL Server, IBM DB2, MongoDB, Casandra, MySQL, Amazon Aurora, and other database systems.

Oracle MONTHS_BETWEEN function

12 August 2020

Oracle MONTHS_BETWEEN function

Oracle/PLSQL MONTHS_BETWEEN function returns the number of months between date1 and date2.

Oracle/PLSQL syntax of MONTHS_BETWEEN function

MONTHS_BETWEEN( date1_id, date2_id )

Parameters and function arguments

  • date1_id and date2_id dates used to calculate the number of months.

MONTHS_BETWEEN function returns a numeric value.

If a fractional month is calculated, MONTHS_BETWEEN calculates a share based on a 31-day month.

MONTHS_BETWEEN function in the following Oracle/PLSQL versions

Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i

 

Let’s consider some examples of MONTHS_BETWEEN function and learn how to use MONTHS_BETWEEN function in Oracle.

SELECT MONTHS_BETWEEN (TO_DATE ('2003/01/01', 'yyyyy/mm/dd'), TO_DATE ('2003/03/14', 'yyyyy/mm/dd')) FROM DUAL;

--Result: -2,419,3548

SELECT MONTHS_BETWEEN (TO_DATE ('2003/07/02', 'yyyyy/mm/dd'), TO_DATE ('2003/07/02', 'yyyyy/mm/dd')) FROM DUAL;

--Result: 0

SELECT MONTHS_BETWEEN (TO_DATE ('2003/08/02', 'yyyyy/mm/dd'), TO_DATE ('2003/06/02', 'yyyyy/mm/dd')) FROM DUAL;

--Result: 2

Frequently asked questions

Question: How do I calculate the number of years, months and days from the total number of days?

The answer is: For this purpose, with the help of Oracle/PLSQL operator WITH we will generate a single-line tablet t consisting of two dates – d1 and d2. Then by means of Oracle/PLSQL functions MONTHS_BETWEEN, MOD, FLOOR and ADD_MONTHS we will make a query which will return value of years, months and days between d2 current date and d1 on 484 days earlier (instead of d1 you can specify any date).

WITH t AS (
SELECT sysdate d2
, sysdate-484 d1
FROM dual
--484 - the number of days to be converted to the number of years, months and days
)
SELECT floor(months_between(d2,d1)/12) yy -- number of years
, floor(mod(months_between(d2,d1),12)) mm -- number of months
, d2-add_months(d1,floor(months_between(d2,d1)) dd -- number of days
FROM t;

--Result:
--YYY 1
--MM 3
--DD 27

As a result of the request we will receive 1 year, 3 months and 27 days. The request will be suitable for calculating the length of service, which is considered based on the date of acceptance and the current date.

Oracle Tutorial – Date Function: MONTHS_BETWEEN

 
Tags: , , , , ,

MORE NEWS

 

Preamble​​NoSql is not a replacement for SQL databases but is a valid alternative for many situations where standard SQL is not the best approach for...

Preamble​​MongoDB Conditional operators specify a condition to which the value of the document field shall correspond.Comparison Query Operators $eq...

5 Database management trends impacting database administrationIn the realm of database management systems, moreover half (52%) of your competitors feel...

The data type is defined as the type of data that any column or variable can store in MS SQL Server. What is the data type? When you create any table or...

Preamble​​MS SQL Server is a client-server architecture. MS SQL Server process starts with the client application sending a query.SQL Server accepts,...

First the basics: what is the master/slave?One database server (“master”) responds and can do anything. A lot of other database servers store copies of all...

Preamble​​Atom Hopper (based on Apache Abdera) for those who may not know is an open-source project sponsored by Rackspace. Today we will figure out how to...

Preamble​​MongoDB recently introduced its new aggregation structure. This structure provides a simpler solution for calculating aggregated values rather...

FlexibilityOne of the most advertised features of MongoDB is its flexibility.  Flexibility, however, is a double-edged sword. More flexibility means more...

Preamble​​SQLShell is a cross-platform command-line tool for SQL, similar to psql for PostgreSQL or MySQL command-line tool for MySQL.Why use it?If you...

Preamble​​Writing an application on top of the framework on top of the driver on top of the database is a bit like a game on the phone: you say “insert...

Preamble​​Oracle Coherence is a distributed cache that is functionally comparable with Memcached. In addition to the basic function of the API cache, it...

Preamble​​IBM pureXML, a proprietary XML database built on a relational mechanism (designed for puns) that offers both relational ( SQL / XML ) and...

  What is PostgreSQL array? In PostgreSQL we can define a column as an array of valid data types. The data type can be built-in, custom or enumerated....

Preamble​​If you are a Linux sysadmin or developer, there comes a time when you need to manage an Oracle database that can work in your environment.In this...

Preamble​​Starting with Microsoft SQL Server 2008, by default, the group of local administrators is no longer added to SQL Server administrators during the...