Oracle DBA

Oracle Database 19c represents the culmination of years of innovation in the Oracle 12c product line, delivering a suite of enhancements that elevate the humble SELECT statement from a straightforward data retrieval mechanism into an intelligent, self-optimizing, and JSON-aware powerhouse. In this deep-dive blog post, we’ll explore each of these advancements in detail, illustrate them […]

In Oracle Database 19c, the optimizer introduces a powerful feature called SQL Quarantine. This feature prevents recurring execution of problematic SQL statements that consume excessive resources or cause performance degradation. By automatically detecting high-resource SQL statements and placing them into quarantine, Oracle ensures that such queries cannot repeatedly impact system performance. This feature is especially […]