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How to Resolve Oracle Connection Issues

How to Resolve Oracle Connection Issues

One of the hardest parts about learning Oracle SQL is getting the database connection working.

After you download Oracle (either Oracle Express or the full database), and an IDE of your choice (such as SQL Developer), it should be easy to set up a new connection and log in.

However, it’s not.

By far, the most common question I receive in my Introduction to Oracle SQL course is how to connect to the database. There were quite a few steps involved in 11g, but now that Oracle Express has released 18c, there are a few more issues that appear.

This article explains what Oracle connection issues may occur and how to fix them.

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SQL Wildcards

SQL Wildcards

Wildcards are a useful technique when working with strings in SQL. Learn all about them and see some examples in this article.

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