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  • Analyzing Oracle 'Data Block' Waits with v$waitstat

    calendar Sep 30, 2024 / Jul 1, 2025 · 2 min read · oracle database performance tuning sql troubleshooting optimization v$waitstat  ·
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    Oracle "Data Block" Waits using Oracle table v$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 …


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  • Analyzing Oracle 'Buffer Busy Waits' with v$session_wait

    calendar Sep 29, 2024 / Jul 1, 2025 · 2 min read · oracle database performance tuning sql troubleshooting optimization v$session_wait  ·
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    Unmasking Buffer Busy Waits in Oracle: A Deep Dive with v$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 …


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  • Analyzing Oracle Performance Statistics with v$statname and v$sysstat

    calendar Sep 28, 2024 / Jul 1, 2025 · 2 min read · v$statname v$sysstat Oracle Database Performance Tuning SQL Monitoring Optimization  ·
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    Analyzing Oracle Performance Statistics with v$statname and v$sysstat Purpose Monitoring and understanding your Oracle database instance's performance is crucial for maintaining optimal efficiency. Oracle provides dynamic performance views, such as v$statname and v$sysstat, to access a wealth of performance statistics. …


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  • Oracle Segment Waits In-Depth Code Analysis and Insights using v$segment_statistics

    calendar Sep 25, 2024 / Jul 1, 2025 · 3 min read · Oracle Database Performance SQL Optimization v$segment_statistics  ·
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    Demystifying Oracle Segment Waits: In-Depth Code Analysis and Insights Using Oracle Table v$segment_statistics Purpose In the realm of Oracle database performance tuning, understanding segment waits is crucial. Waits indicate areas where processes are contending for resources, potentially leading to bottlenecks. The …


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  • Oracle Performance Tuning Analyzing Latch Contention with Time Waited for Latches Using Oracle Tables v$system_event and v$sysstat

    calendar Sep 24, 2024 / Jul 1, 2025 · 3 min read · performance tuning latch performance tuning latch contention v$system_event v$sysstat  ·
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    Oracle Performance Tuning: Analyzing Latch Contention with "Time Waited for Latches" using Using Oracle Tables v$system_event and v$sysstat Purpose In the world of Oracle database performance tuning, identifying and resolving latch contention is critical for maintaining a responsive system. Latches are low-level …


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  • Top 10 Hottest Objects in Oracle by Touch Count using tables x$bh obj$ and user$

    calendar Sep 20, 2024 / Jul 1, 2025 · 2 min read · Oracle Database Performance x$bh obj$ user$  ·
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    Top 10 Hottest Objects in Oracle by Touch Count using tables x$bh obj$ and user$ Purpose This Oracle SQL query identifies the top 10 "hottest" objects within your database. In this context, "hot" refers to objects that have been accessed (or "touched") the most frequently. Understanding which objects are frequently …


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  • Identify Waits by Datafile in Oracle using tables v$datafile and x$kcbfwait

    calendar Sep 19, 2024 / Jul 1, 2025 · 2 min read · Oracle Database Performance x$kcbfwaitv $datafile  ·
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    Identify Waits by Datafile in Oracle using tables v$datafile and x$kcbfwait Purpose In Oracle databases, waiting events often indicate performance bottlenecks. This SQL query helps you pinpoint which datafiles are associated with the most wait events. By understanding where waits are occurring, you can take targeted …


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  • Oracle Database Understanding Lock Conflicts with dba_lock and Column Formatting

    calendar Sep 6, 2024 / Jul 1, 2025 · 2 min read · Database SQL Performance Troubleshooting Oracle Database Administration Performance Tuning dba_lock  ·
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    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 …


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  • Identifying Locked Rows in Oracle Database using tables v$session and dba_objects

    calendar Sep 5, 2024 / Jul 1, 2025 · 2 min read · v$session dba_objects Oracle Database Administration SQL  ·
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    Identifying Locked Rows in Oracle Database using tables v$session and dba_objects Purpose This Oracle query pinpoints the exact row a specific session is waiting on due to a lock. It first finds the locked object and row location, then constructs a ROWID to fetch and display the entire locked row from the table. Sample …


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  • Oracle Database Uncover & Resolve Blocking Sessions with SQL using v$lock

    calendar Sep 4, 2024 / Jul 1, 2025 · 2 min read · v$lock Oracle Database SQL Performance Troubleshooting  ·
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    Oracle Database: Uncover Blocking Sessions with a Powerful SQL Query using v$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 …


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