First, if you plan to develop Java applications on eclipse, make sure you use the Eclipse IDE for Java EE developers. This will allow you to install the most suitable plugins and does not allow you to load additional plugins.
You can download additional connection profiles through the DTP (Data Tools Platform) plugin. Or through the "Eclipse Marketplace", "DTP Search" or "Install New Software ...", enter your version of eclipse in the "Work with:" field (in this case, "Kepler") and search for "Database Development"> " Tool Data Platform "Enablement Extender SDK"
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