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9.3.1 SQL comments

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Before you start diving into the world of SQL, just a short note about commenting your SQL code. In SQL, there are a number of ways to comment your code, of which the most popular are /* */ and #, both of which are seen in PHP. Of the two, # is more popular - like PHP, it comments to the end of the line.

Author's Note: I personally find # good for SQL because I never use it in PHP scripts - it makes the distinct between complex SQL queries and PHP code that little bit more obvious. Choose what fits you best.

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