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

    calendar Sep 25, 2024 · 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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  • Top 10 Hottest Objects in Oracle by Touch Count using tables x$bh obj$ and user$

    calendar Sep 20, 2024 · 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 …


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

    calendar Sep 19, 2024 · 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 · 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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  • Oracle Database Uncover & Resolve Blocking Sessions with SQL using v$lock

    calendar Sep 4, 2024 · 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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  • Monitor Real-Time SQL Activity in Oracle Identify Running Queries

    calendar Sep 2, 2024 · 2 min read · Oracle SQL Database Performance Monitoring v$sqlarea  ·
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    Oracle Database: Show Currently Executing SQL Statements

    Purpose

    This Oracle SQL query allows you to monitor and view the SQL statements that are actively running in your database. It provides insights into the current workload and helps identify resource-intensive or long-running queries that might impact performance. …


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  • Oracle Database Show All Table Constraints for a User using dba_constraints

    calendar Sep 1, 2024 · 3 min read · Oracle SQL Database Constraints Data Integrity DBA_CONSTRAINTS  ·
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    Oracle Database: Show All Table Constraints for a User using dba_constraints

    Purpose

    This Oracle SQL query is designed to retrieve a comprehensive list of all constraints associated with tables owned by a specific user in your Oracle database. Constraints are essential rules that ensure data integrity and consistency. …


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  • Oracle Database Identifying Parent Tables for Repair or Re-import using dba_constraints

    calendar Aug 31, 2024 · 2 min read · Oracle SQL Database Data Integrity Troubleshooting dba_constraints  ·
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    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 …


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  • Oracle SQL Finding Missing Foreign Key Values (ORA-02298)

    calendar Aug 30, 2024 · 4 min read · Oracle SQL Database Data Integrity Troubleshooting DBA_CONSTRAINTS DBA_CONS_COLUMNS  ·
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    Oracle SQL: Finding Missing Foreign Key Values (ORA-02298)

    Purpose

    This Oracle SQL query is designed to help identify missing foreign key values within your database. This is particularly useful when troubleshooting the ORA-02298: cannot validate (constraint_name) - parent keys not found error, which indicates a …


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  • Oracle Performance Tuning Deep Dive into Session Statistics with SQL

    calendar Aug 29, 2024 · 3 min read · Oracle SQL Database Performance Monitoring v$sesstat v$statname  ·
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    Oracle Database: Deep Dive into Session Statistics

    Purpose

    This Oracle SQL query is designed to retrieve a snapshot of active session statistics for a specific session within your Oracle database. Session statistics provide invaluable insights into the current activity and resource utilization of a particular database …


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SCRIPTS 115 ORACLE ADMINISTRATION RAC 12 ORACLE STRUCTURE TABLESPACE 11 ORACLE STRUCTURE FILES 10 ORACLE STRUCTURE OBJECTS 10 ORACLE ADMINISTRATION SESSION 9 ORACLE ADMINISTRATION ASM 8 ORACLE PERFORMANCE GENERAL 8 ORACLE PERFORMANCE WAITS 8 ORACLE ADMINISTRATION STATUS 7 ORACLE STRUCTURE CONSTRAINTS 7 ORACLE ADMINISTRATION USER 5 ORACLE PERFORMANCE LOCKS DML 4 ORACLE PERFORMANCE STATISTICS 4
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ORACLE ADMINISTRATION ASM8 ORACLE ADMINISTRATION INIT PARAMETERS3 ORACLE ADMINISTRATION RAC12 ORACLE ADMINISTRATION SESSION9 ORACLE ADMINISTRATION STATUS7 ORACLE ADMINISTRATION USER5 ORACLE PERFORMANCE GENERAL8 ORACLE PERFORMANCE LOCKS DML4 ORACLE PERFORMANCE STATISTICS4 ORACLE PERFORMANCE WAITS8 ORACLE STRUCTURE CONSTRAINTS7 ORACLE STRUCTURE FILES10 ORACLE STRUCTURE INDEXES2 ORACLE STRUCTURE OBJECTS10 ORACLE STRUCTURE REDO LOGS3 ORACLE STRUCTURE TABLESPACE11 ORACLE STRUCTURE UNDO4 SCRIPTS115
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ADMIN GUIDE 116

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ORACLE 94 DATABASE 49 SQL 35 ADMINISTRATION 30 PERFORMANCE 20 DATABASE ADMINISTRATION 18 OPTIMIZATION 16 V$SESSION 12 DBA 11 ORACLE CLUSTERWARE 11 MANAGING 10 TABLESPACE 10 TROUBLESHOOTING 10 DBA_SEGMENTS 9
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$DATAFILE1 ACCOUNT1 ADMINISTRATION30 ALL_OBJECTS1 ALTER SESSION1 ASM2 ASM DISK UTILIZATION1 BACKUP1 CHARACTER-SET1 CLUSTER5 CLUSTER MANAGEMENT1 CONNECTED-USERS3 CONSTRAINTS3 DATA INTEGRITY3 DATA-MANAGEMENT8 DATABASE49 DATABASE ADMINISTRATION18 DATABASE MANAGEMENT2 DATABASE SIZE1 DATABASE START-UP1 DATAFILES5 DBA11 DBA_CONS_COLUMNS1 DBA_CONSTRAINTS6 DBA_DATA_FILES5 DBA_ERRORS1 DBA_EXTENTS1 DBA_FEATURE_USAGE_STATISTICS1 DBA_FREE_SPACE2 DBA_INDEXES1 DBA_LOCK1 DBA_OBJECTS7 DBA_ROLES1 DBA_ROLLBACK_SEGS1 DBA_SEGMENTS9 DBA_SOURCE1 DBA_TAB_COLUMNS1 DBA_TABLESPACES1 DBA_TEMP_FILES2 DBA_TS_QUOTAS1 DBA_UNDO_EXTENTS1 DBA_USERS1 DBMS_METADATA1 DBMS_STATS4 DBMS_STATS.GATHER_DATABASE_STATS1 DBMS_STATS.GATHER_SCHEMA_STATS1 DDL1 DEVELOPMENT1 DISK GROUP CREATION1 DISK INFORMATION4 DISK SPACE ANALYSIS1 DISKGROUP3 EXTERNAL REDUNDANCY1 FEATURES1 FREE SPACE1 GATHER_SYSTEM_STATS1 HOT-BACKUP1 I/O1 INSTALLED3 JAVA1 LAST-ACTIVITY1 LATCH1 LATCH CONTENTION1 MAINTENANCE1 MANAGEMENT8 MANAGING10 MODIFY1 MONITORING4 NLS_DATABASE_PARAMETERS1 OBJ$1 OBJECTS6 OIFCFG1 OPTIMIZATION16 ORACHECK1 ORACLE94 ORACLE - DATABASE ADMINISTRATION - SQL - DBA_CONSTRAINTS1 ORACLE ASM5 ORACLE ASM - ORACLE - DISK INFORMATION - STORAGE MANAGEMENT - DISKGROUP1 ORACLE CLUSTERWARE11 ORACLE CRS9 ORACLE DATABASE7 OSUSER1 PARAMETERS2 PEFORMANCE1 PERFORMANCE20 PERFORMANCE OPTIMIZATION3 PERFORMANCE TUNING9 PERFORMANCE-MONITORING4 PL SQL1 PLSQL1 PRIVILEGES1 PROCEDURE2 QUERY1 QUERY OPTIMIZATION1 QUOTAS1 RAC7 RECOVERY3 RESOURCE OPTIMIZATION3 ROLE PRIVILEGES1 ROLE_SYS_PRIVS1 ROLE_TAB_PRIVS1 SCHEMA SPACE USED1 SCRIPTING1 SCRIPTS1 SECURITY1 SEGMENTS3 SESSION-PID1 SESSIONS1 SESSIONS-SORTED1 SHOW2 SHOW ROLES1 SHOW_TABLE_ROLE_PRIVILEGES1 SHOW-USER-SQL5 SPACE USAGE1 SPACE USED1 SPFILE1 SQL35 SQL COMMANDS1 SQL TUTORIAL1 SQL-QUERIES1 SRVCTL3 START4 START-UP TIME1 STATISTICS MANAGEMENT1 STOP4 STORAGE2 STORAGE CAPACITY MONITORING1 STORAGE MANAGEMENT4 TABLESPACE10 TEMP2 TRACING2 TRANSACTIONS1 TROUBLESHOOTING10 TUNING2 UNDO_RETENTION1 USAGE2 USED SPACE1 USER4 USER SPACE1 USER$1 USERS2 V$ASM_OPERATION1 V$BACKUP1 V$CONTROLFILE3 V$DATAFILE7 V$DB_CACHE_ADVICE1 V$FILESTAT1 V$INSTANCE1 V$LOCK2 V$LOCKED_OBJECT1 V$LOG3 V$LOGFILE4 V$PARAMETER2 V$PROCESS2 V$SEGMENT_STATISTICS1 V$SESSION12 V$SESSION_LONGOPS1 V$SESSION_WAIT1 V$SESSTAT1 V$SQLAREA5 V$STATNAME2 V$SYSSTAT2 V$SYSTEM_EVENT2 V$TEMPFILE3 V$TRANSACTION1 V$WAITSTAT1 VDATAFILE2 X$BH1 X$KCBFWAITV1
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