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What is the required argument to openDatabase?

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What is the required argument to openDatabase?

(a) version number

(b) database name

(c) size of a database

(d) text description

The question was asked in my homework.

Query is from Web Databases in portion HTML Images & Web Page Files of HTML

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Right option is (a) version number

To explain I would say: The required argument to openDatabase is version number. So it is mandatory that you should know the version number before we try to open the database. If we do not pass this argument then an exception is thrown.

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