It emphasises the use of zero as a placeholder .
The use of zero as a placeholder was probably first developed by the Babylonians, possibly as early as 1500 BCE.
The it in suffice it to say is an impersonal or indefinite pronoun, one that functions as a grammatical placeholder without supplying much real meaning.
With the Impress files created, I needed to replace my graphic image placeholders with the actual image.
The HTML files contain placeholders for data that will be substituted in at runtime.
Notice how we use DBI's placeholders , shown here as a question mark in the list of VALUES, to avoid potential problems with quoted strings within our SQL query.
But even users of low-end databases can benefit from using placeholders because they ensure strings will be quoted correctly, even if they contain quotation marks or apostrophes.
According to this model, readers process text in parallel at several levels of analysis, which mesh the ease of identification with the role of function words as structural placeholders .
Not only does this reduce the risk of someone messing with our SQL, but some database drivers will take advantage of our placeholders in subsequent queries, giving us a speed boost.