18c JSON TO_UTC_TIMESTAMP_TZ bug

My blog has moved, the article you are looking for can be found here:
https://seanstuber.com/2018/04/28/18c-json-to_utc_timestamp_tz-bug/

Performance Diagnostics and Tuning With and Without Your DBA

My blog has moved, the article you are looking for can be found here:
https://seanstuber.com/2018/04/24/performance-diagnostics-and-tuning-with-and-without-your-dba/

Reading a PDF blob with PL/SQL and SQL

My blog has moved, the article you are looking for can be found here:
https://seanstuber.com/2018/04/16/reading-a-pdf-blob-with-pl-sql-and-sql/

NULL vs NOT NULL columns and Index usage

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https://seanstuber.com/2018/04/07/null-vs-not-null-columns-and-index-usage/

SQL for the fun of it: finding typing patterns in words (Part 3 of 3)

My blog has moved, the article you are looking for can be found here:
https://seanstuber.com/2018/04/04/sql-for-the-fun-of-it-finding-typing-patterns-in-words-part-3-of-3/

SQL for the fun of it: finding typing patterns in words (Part 2 of 3: using Model Clause)

My blog has moved, the article you are looking for can be found here:
https://seanstuber.com/2018/04/02/sql-for-the-fun-of-it-finding-typing-patterns-in-words-part-2-using-model-clause/