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How does Oracle count the total number of unique values?

How to implement recording browsing history in PHP?

What are the methods for backing up and restoring a MySQL database?

How is the function usage of PHP strtotime?

How to match the data from two SQL tables?

How to open MySQL Query Analyzer?

How can one add elements to an array in PHP?

How do you write code to refresh data in real time using PHP?

What are some applications of MySQL datetime?

What is the command to restart PHP on Linux?