Oracle Enable FAL Tracing on Primary Database Purpose Enabling FAL (Fetch Archive Log) tracing on the primary database helps database administrators monitor and troubleshoot archive log gap resolution between primary and standby databases in Oracle Data Guard environments. This command activates detailed trace logging …

Check Missing Archive Logs in Oracle Data Guard Standby Database Purpose This SQL query helps database administrators identify missing archive logs on an Oracle Data Guard standby database. When archive logs fail to transfer from the primary to the standby database, it creates gaps that prevent proper synchronization. …

How to Manually Take an AWR Snapshot in Oracle Database with dbms_workload_repository.create_snapshot What is Oracle AWR Snapshot Creation? Creating a manual AWR snapshot in Oracle Database allows database administrators to capture performance statistics at specific points in time, providing precise data for …

Oracle SQL Hash Lookup Query - Retrieving SQL Text from V$SQLAREA Purpose This Oracle Database query is designed to retrieve the complete SQL statement text from the V$SQLAREA view using a specific hash value. This is particularly useful for database administrators and developers who need to identify and analyze SQL …

Identifying Oracle Database Hot Blocks using Oracle Table v$system_event: A Comprehensive Guide Purpose Understanding Hot Blocks In an Oracle database, a "hot block" refers to a data block in the buffer cache that experiences a disproportionately high volume of concurrent requests. This contention can lead to …

Oracle "Data Block" Waits using Oracle table v$waitstat to identify disk Contention Purpose In Oracle databases, waiting for "data blocks" signifies contention for specific data blocks in memory. This contention can lead to performance bottlenecks and slowdowns. Understanding the root cause of these waits is crucial to …

Unmasking Buffer Busy Waits in Oracle: A Deep Dive with v$session_wait Purpose "Buffer busy waits" are a common performance bottleneck in Oracle databases, occurring when multiple sessions try to access the same data block concurrently. Identifying the specific blocks and understanding the reasons behind these waits is …

Oracle Database: Understanding Lock Conflicts with dba_lock and Column Formatting Purpose This Oracle SQL query is designed to investigate and understand lock conflicts within your database, particularly those causing performance bottlenecks. It leverages the dba_lock view to expose critical lock information in a …

Oracle Database: Uncover Blocking Sessions with a Powerful SQL Query using v$lock Purpose Identify and resolve performance bottlenecks in your Oracle database by detecting blocking sessions using this powerful SQL query. Gain insights into the query's mechanics and learn how to optimize your database for smoother …

Oracle Database: Identifying Parent Tables for Repair or Re-import using dba_constraints Purpose When working with Oracle databases, ensuring data integrity is paramount. Foreign key constraints play a crucial role in maintaining relationships between tables, but disabled constraints can signal potential issues that …