How Can I Determine the Last Updated Date for My MySQL Tables?

Two methods to get the last updated date of a MySQL table

In the digital age, presenting the latest information is crucial. For some web pages, it is very valuable to display the last modification time of a specific MySQL table. This article will explore two methods of obtaining this information to help you present relevant data to your users.

Method 1: Using information_schema database

Modern MySQL versions include the information_schema database, which provides insights into other tables. By querying this database, you can extract the last updated date using the following query:

SELECT UPDATE_TIME
FROM   information_schema.tables
WHERE  TABLE_SCHEMA = 'dbname'
   AND TABLE_NAME = 'tabname'

Please note that this method requires a database connection.

Method 2: Create a timestamp file

Another approach is to create a timestamp file that is updated every time the MySQL table is modified. This file acts as a proxy for the last updated date.

• Database update: Open the timestamp file in read-write mode and close it to update its timestamp. Alternatively, you can use the touch() function to directly change the file's timestamp.
• The page shows: Use stat() to access the file again to retrieve its last modification time. This value represents the last update time of the MySQL table.

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