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postgreSQL Difference between two date timestamps month wise and year wise


Monthwise difference between two dates(timestamp)

select
 (
(DATE_PART('year', AgeonDate) - DATE_PART('year', tmpdate)) * 12
 +
 (DATE_PART('month', AgeonDate) - DATE_PART('month', tmpdate))
 )
from dbo."Table1"

Yearwise difference between two dates(timestamp)

select (DATE_PART('year', AgeonDate) - DATE_PART('year', tmpdate)) from dbo."Table1"

Query to Copy/Move/Transafer table data from one database to other database table with same schema


First Execute

CREATE EXTENSION DBLINK;

Then

INSERT INTO
 <SCHEMA_NAME>.<TABLE_NAME_1>
SELECT *
FROM
 DBLINK(
 'HOST=<IP-ADDRESS> USER=<USERNAME> PASSWORD=<PASSWORD> DBNAME=<DATABASE>',
 'SELECT * FROM <SCHEMA_NAME>.<TABLE_NAME_2>')
 AS <TABLE_NAME>
 (
 <COLUMN_1> <DATATYPE_1>,
 <COLUMN_1> <DATATYPE_2>,
 <COLUMN_1> <DATATYPE_3>
 );


Conclusion

In this page (written and validated by ) you learned about postgreSQL Difference between two date timestamps month wise and year wise . What's Next? If you are interested in completing postgreSQL tutorial, your next topic will be learning about: postgreSQL High Availability.



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