How and why I get lowered note version 4.1 to 3.2 SQL Developer?

First of all, I must say that I am a newbie.  I know a little SQL to use it on my own over the years to build queries and reports outside the overview of the it Department.  I'm at halfway through the first book Fundamentals SQL for Oracle Database 12 c Certification in the end.

A week ago when I started this journey, I downloaded Oracle 12 c and later SQL Developer 4.1 and was using SQL Developer 4.1 successfully.  But when I tried to follow the examples of OE and HR in the book of preparation review making simple queries, I had to download the "examples of database" oracle.com/downloads.  I downloaded the zip and run the setup.exe file.  Now, I'm going to open the same exact shortcut, which I had used for SQL Developer 4.1 and it now opens instead of the SQL Developer 3.2!  Why the hell should I suddenly have SQL Developer 3.2 an older version? Has anyone else got a happen to them?  Do you know why it happened to me?  And above all, it won't hurt anything if I returned to oracle.com/downloads and re - download SQL Developer 4.1 the latest version?  Or do I somehow the old version of the SQL Developer to use the HR and OE schemas, tables, and data?

Thanks for any idea you may have in this weird situation.

Heather

You can install as many versions of SQL Developer you want, simply unpack each in its own empty directory.

"Examples of database" download & install must have diverted your shortcut.  Probably version 4.1 is still installed and you just create a new shortcut.  Better yet, 2 shortcuts: one for version 3.2 and one for version 4.1, as in the names of shortcut 'SQLDev32' and 'SQLDev41 '.

Edit: Using 3.2 for the examples in the book preparation will be easier because the SQL Developer can change from one version to another and no longer exactly correspond with them.

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