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The Art of PostgreSQL

Some Useful Commands

Explore essential PostgreSQL commands that help you manage your database effectively. Learn how to compare files using the diff command, check your PostgreSQL version, utilize online help within psql, and safely log out of your database. This lesson equips you with the practical command-line skills needed for efficient PostgreSQL use.

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The diff command

We can use the diff command to compare the content of the files. For comparing the files diff-a.sql and diff-b.sql, we’ll write the file names with the diff keyword as follows:

Diff
diff /usercode/diff-a.sql /usercode/diff-b.sql

Here we have the path for both files to be used then do the following two steps:

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