Oracle on PolloChang 工作筆記

open Statspack

Tue, 14 Apr 2026 22:57:49 +0800

因為 Oracle AWR 需要 DIAGNOSTIC+TUNING 授權才可以明確使用，但是在實務中沒有監控 DBA 只能當通靈大師 Tunning Database，因此轉而使用Oracle Statspack 作為替代方案。

以下是啟用方式

Oracle Index 維護方式

Tue, 07 Apr 2026 23:00:49 +0800

Oracle 11g
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1. 清查統計資訊：確認資料的「新鮮度」
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在 11g，如果 LAST_ANALYZED 太久遠，BLEVEL 的參考價值會大打折扣。

How to check need redo size

Mon, 06 Apr 2026 15:57:49 +0800

以下內容待確認，我這邊先筆記

太棒了！你已經完美地將我們討論的「15-20 分鐘法則」、精確計算公式以及「過大 vs. 過小」的權衡整理成了一份標準作業程序（SOP）。這就是一位優秀 DBA 的養成之路：不僅要解決問題，更要建立可量化的評估標準。

Oracle files design

Mon, 06 Apr 2026 15:57:49 +0800

這是一個非常關鍵的架構問題。在儲存設備（Storage）的配置上，Redo Log 與 Datafile 的特性截然不同：Redo Log 追求的是「極致的寫入低延遲（Latency）」，而 Datafile 追求的是「穩定且平衡的吞吐量（Throughput）」。

maa consolidation TW

Sun, 05 Apr 2026 16:23:49 +0800

Oracle 資料庫整合最佳實踐深度研究報告：基於 MAA 參考架構與 AI 原生技術的全面實施指南
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資訊技術（IT）組織在當今瞬息萬變的商業環境中，面臨著日益嚴苛的挑戰，必須在控管成本、提升業務敏捷性、確保系統持續可用、降低資安風險以及交付卓越效能之間取得平衡 ¹。為了達成這些目標，資料庫整合（Database Consolidation）已成為全球領先企業的核心策略，旨在優化運算資源的利用率，同時簡化紛繁複雜的維運環境。本報告將深入探討 Oracle 資料庫整合的最佳實踐，範圍涵蓋作業系統虛擬化、資源管理技術、多租戶架構、Oracle Exadata 平台，以及 2026 年最新發布的 Oracle AI 資料庫 26ai 與 Exascale 智能資料架構 ¹。

AL32UTF8_編碼起源與發展

Sun, 22 Mar 2026 23:00:52 +0800

全球化資訊時代的基石：Oracle AL32UTF8 字元集起源、技術演進與架構深度研究報告
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在當代關聯式資料庫管理系統（RDBMS）的發展史中，資料的表現形式始終受到底層硬體限制與全球資訊交換需求之間的雙重拉鋸。隨着網際網路在二十世紀九十年代中期的爆發式增長，企業對於支援多語言、多文化數據儲存的需求，從原本的區域性解決方案演變為一種全球性的技術指令。在此背景下，Oracle 公司的 AL32UTF8 字元集應運而生。本報告旨在詳盡探討 AL32UTF8 的起源時間、技術動機、架構原理及其在過去二十多年間如何隨着 Unicode 標準的演進而成為當前全球資料庫部署的核心標準。

Oracle Encoding History - AL32UTF8

Sun, 22 Mar 2026 23:00:52 +0800

The Cornerstone of the Globalized Information Era: A Deep Research Report on the Origins, Technical Evolution, and Architecture of Oracle AL32UTF8
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In the history of Relational Database Management Systems (RDBMS), the representation of data has always been caught between the limitations of hardware and the demands of global information exchange. With the explosion of the Internet in the mid-1990s, the need for enterprises to support multi-language and multi-cultural data storage evolved from a regional solution into a global technical mandate. In this context, Oracle's AL32UTF8 character set was born. This report explores the origins, technical motivations, architectural principles, and evolution of AL32UTF8 alongside Unicode standards over the past two decades.

deploy Oracle26ai on Oracle Linux 8

Sat, 28 Feb 2026 10:57:49 +0800

資料庫環境
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Database version:
ORACLE_HOME: /u01/app/oracle/product/26/db

準備檔案
#

資料庫軟體: LINUX.X64_2326100_db_home.zip
- sha256sum : 5419f613af80477403edbd12f6ce038f3dba5da535b619d3928aee340f0d9ed6
database-preinstall RPM: oracle-ai-database-preinstall-26ai-1.0-0.1.el8.x86_64.rpm

Download Page: https://www.oracle.com/database/technologies/oracle26ai-linux-downloads.html

deploy Oracle19c RAC on RHEL9

Sun, 22 Feb 2026 23:57:49 +0800

準備檔案
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Oracle Database 19.3.0.0.0 for Linux x86-64
- File Name: LINUX.X64_193000_db_home.zip (2.8 GB)
- sha256sum: ba8329c757133da313ed3b6d7f86c5ac42cd9970a28bf2e6233f3235233aa8d8
Oracle Database Grid Infrastructure 19.3.0.0.0 for Linux x86-64
- File Name: V982068-01.zip (2.7 GB)
- sha256sum: d668002664d9399cf61eb03c0d1e3687121fc890b1ddd50b35dcbe13c5307d2e
OPatch 12.2.0.1.49 (Patch 6880880: OPatch 12.2.0.1.49 for DB 19.0.0.0.0 (Jan 2026))
- File Name: p6880880_190000_Linux-x86-64.zip
- sha256sum: 79181853ce156252719dc2ace2327f9388a694c33312c2da1eac2ffdacb0dcf7
GI RELEASE UPDATE 19.30.0.0.0(REL-JAN260130)(Patch:Linux x86-64)
- File Name: p38629535_190000_Linux-x86-64.zip (3.8 GB)
- sha256sum: ce2eb4ea9b973e788ceb6f2bd4c8365999e2a26521c14e4267eea727c7c22d73
DATABASE RELEASE UPDATE 19.30.0.0.0(REL-JAN260130)(Patch:Linux x86-64)
- File Name: p38632161_190000_Linux-x86-64.zip (2.1 GB)
- sha256sum: 74bb470a435de8eb129cd94d65aa7052f4998671053c29efb60dbf510b83a8f5

KVM
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預先設定 KVM VM 的 MAC Address

`1`	`printf '52:54:00:%02x:%02x:%02x\n' $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256))`

環境資訊
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硬體資訊
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第一個版本(notebook version): 這是我的筆記型電腦
#

❯ screenfetch                          
         _,met$$$$$gg.           pollochang@pollo-nb-5310
      ,g$$$$$$$$$$$$$$$P.        OS: Debian 13 trixie
    ,g$$P""       """Y$$.".      Kernel: x86_64 Linux 6.12.63+deb13-amd64
   ,$$P'              `$$$.      Uptime: 1d 7h 34m
  ',$$P       ,ggs.     `$$b:    Packages: 2925
  `d$$'     ,$P"'   .    $$$     Shell: zsh 5.9
   $$P      d$'     ,    $$P     Resolution: 2970x1680
   $$:      $$.   -    ,d$$'     DE: GNOME 48.4
   $$\;      Y$b._   _,d$P'      WM: Mutter
   Y$$.    `.`"Y$$$$P"'          WM Theme: 
   `$$b      "-.__               GTK Theme: Adwaita [GTK2/3]
    `Y$$                         Icon Theme: Adwaita
     `Y$$.                       Font: Cantarell 11
       `$$b.                     Disk: 604G / 1.9T (35%)
         `Y$$b.                  CPU: Intel Core i5-10310U @ 8x 4.4GHz [71.0°C]
            `"Y$b._              GPU: UHD Graphics
                `""""            RAM: 27513MiB / 63996MiB

第二個版本(lab version): 這是我的實驗室主機
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[root@kvm-004 ~]# df -h
/dev/nvme1n1    954G  107G  847G  12% /vm-disk-02
/dev/nvme0n1    932G  150G  782G  17% /vm-disk-01
/dev/sdb2      1014M  351M  664M  35% /boot
/dev/sdb1      1022M  6.0M 1017M   1% /boot/efi
/dev/sdd1       1.9T   14G  1.9T   1% /nas-disk-01
/dev/sdc1       932G   52G  880G   6% /vm-disk-03
[root@kvm-004 ~]# lsblk -d -o NAME,MODEL,ROTA,SIZE
NAME    MODEL                                    ROTA   SIZE
sdb     Samsung SSD 870                             0 465.8G
sdc     WDC WD10TPVT-00U                            1 931.5G
sdd     WDC WD20EZAZ-00G                            1   1.8T
nvme1n1 ADATA SX8200PNP                             0 953.9G
nvme0n1 CT1000P3PSSD8                               0 931.5G

VM Host
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notebook version
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VM Planform: KVM
Share Disk
- Oracle database:
  - /var/lib/libvirt/images/db145-data-01.raw
  - /var/lib/libvirt/images/db145-data-02.raw
- Oracle grid:
  - /var/lib/libvirt/images/db145-OCR-01.raw
  - /var/lib/libvirt/images/db145-OCR-02.raw
  - /var/lib/libvirt/images/db145-OCR-03.raw

lab version
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VM Planform: Oracle KVM
Share Disk
- Oracle database:(data 寫在兩顆硬碟)
  - /vm-disk-01/db155-data-01.raw
  - /vm-disk-02/db155-data-02.raw
- Oracle grid:
  - /vm-disk-03/db155-OCR-01.raw
  - /vm-disk-03/db155-OCR-02.raw
  - /vm-disk-03/db155-OCR-03.raw

資料庫系統
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notebook version
#

OS Version: Redhat Linux 9.7 (Minimal Linux Installation)
CPU: 8 vCore
RAM: 16G
Disk:
- swap: 16G
- /boot: 1G
- /u01: 20G
Database Info
- Database version: Oracle Database 19.30.0.0.0 for Linux x86-64
- domain
  - db145.pollo.local
- scan IP:
  - 192.168.122.145
  - 192.168.122.146
  - 192.168.122.147
common-server
- hostname: common-server-005.pollo.local
- IP: 192.168.122.5
- Service
  - DNS Server
  - NTP Server
  - NFS server: 這邊我是為了節省點腦的硬碟空間
database host 1
- hostname: db141.pollo.local
- ORCLE_SID: db1 (這個有區分大小寫)
- ORACLE_HOME: /u01/app/oracle/product/19/db
- Pulic IP: 192.168.122.141
  - MAC: 52:54:00:b5:8b:7a
- Virtual IP: 192.168.122.143 , db141-vip.pollo.local
- Private IP: 192.168.55.141 , db141-priv.pollo.local
- CPU: 8vCore
- RAM: 16G
- SWAP: 16G
database host2
- hostname: db142.pollo.local
- ORCLE_SID: db2 (這個有區分大小寫)
- ORACLE_HOME: /u01/app/oracle/product/19/db
- Pulic IP: 192.168.122.142
  - MAC: 52:54:00:19:ae:b2
- Virtual IP: 192.168.122.144 , db142-vip.pollo.local
- Private IP: 192.168.55.142 , db142-priv.pollo.local
- CPU: 8vCore
- RAM: 16G
- SWAP: 16G
Disk Groups
- database
  - DATA-01: 20G
  - DATA-02: 20G
- grid (asm disk)
  - OCR-01: 5 G
  - OCR-02: 5 G
  - OCR-03: 5 G

lab version
#

OS Version: Redhat Linux 9.7 (Minimal Linux Installation)
CPU: 8 vCore
RAM: 16G
Disk:
- swap: 16G
- /boot: 1G
- /u01: 20G
Database Info
- Database version: Oracle Database 19.30.0.0.0 for Linux x86-64
- domain
  - db155.home.pollochang.work
- scan IP:
  - 172.30.1.155
  - 172.30.1.156
  - 172.30.1.157
database host 1
- hostname: db151.home.pollochang.work
- ORCLE_SID: db151 (這個有區分大小寫)
- ORACLE_HOME: /u01/app/oracle/product/19/db
- Pulic IP: 172.30.1.151
  - NIC:
  - MAC:
- Virtual IP: 172.30.1.153 , db151-vip.home.pollochang.work
- Private IP: 10.192.0.151 , db151-priv.pollochang.work
  - MAC:
- CPU: 8vCore
- RAM: 16G
- SWAP: 16G
database host2
- hostname: db152.home.pollochang.work
- ORCLE_SID: db2 (這個有區分大小寫)
- ORACLE_HOME: /u01/app/oracle/product/19/db
- Pulic IP: 172.30.1.152
  - NIC:
  - MAC:
- Virtual IP: 172.30.1.154 , db152-vip.home.pollochang.work
- Private IP: 10.192.0.152 , db152-priv.home.pollochang.work
  - NIC:
  - MAC:
- CPU: 8vCore
- RAM: 16G
- SWAP: 16G
Disk Groups
- database
  - DATA-01: 50G
  - DATA-02: 50G
- grid (asm disk)
  - OCR-01: 5 G
  - OCR-02: 5 G
  - OCR-03: 5 G

規劃 ASM
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既然您正在安裝 RAC，而不是單節點的 Standalone Cluster，您只有兩個主要的選項：

SQL tunning task common

Sat, 31 Jan 2026 23:50:53 +0800

以**「電商物流系統」**為主題。這個場景包含了高頻交易、大量文字描述以及複雜的關聯。

以下是針對 Oracle 11g 環境設計的實作腳本。

第一步：設計與建立資料表 (DDL)
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我們設計五張表：客戶 (CUSTOMERS)、商品 (PRODUCTS)、訂單主檔 (ORDERS)、訂單明細 (ORDER_ITEMS)、以及物流追蹤備註 (LOGISTICS_DETAIL)。

SQL tunning task MES

Sat, 31 Jan 2026 23:50:53 +0800

第一步：MES 系統資料表設計 (DDL)
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我們設計六張核心表，涵蓋工單、批次（Lot）、機台、過帳紀錄與參數採集。

oracle AWR TOP SQL

Thu, 15 Jan 2026 23:23:49 +0800

以下我針對 AWR 中的 TOP SQL 進行研究

SQL ordered by Elapsed Time
SQL ordered by CPU Time
SQL ordered by User I/O Wait Time
SQL ordered by Gets
SQL ordered by Reads
SQL ordered by Physical Reads (UnOptimized)
SQL ordered by Executions
SQL ordered by Parse Calls
SQL ordered by Sharable Memory
SQL ordered by Version Count

尋找方式
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1. SQL ordered by TOP Event
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WITH sql_metrics AS (
    -- 1. 從歷史視圖中加總各項增量指標
    SELECT 
        s.sql_id,
        SUM(s.elapsed_time_delta) / 1000000 as total_elapsed_sec,
        SUM(s.cpu_time_delta) / 1000000 as total_cpu_sec,
        SUM(s.iowait_delta) / 1000000 as total_io_wait_sec,
        SUM(s.buffer_gets_delta) as total_gets,
        SUM(s.disk_reads_delta) as total_reads,
        -- Physical Reads (UnOptimized) 通常是指排除掉從 Flash Cache 讀取的真正磁碟讀取
        SUM(s.physical_read_requests_delta) as total_phys_read_req,
        SUM(s.executions_delta) as total_execs,
        SUM(s.parse_calls_delta) as total_parse_calls,
        -- 這些是目前快照點的狀態值，取最大值作為參考
        MAX(s.sharable_mem) / 1024 / 1024 as max_sharable_mem_mb,
        MAX(s.version_count) as max_version_count
    FROM dba_hist_sqlstat s
    JOIN dba_hist_snapshot sn ON s.snap_id = sn.snap_id AND s.dbid = sn.dbid AND s.instance_number = sn.instance_number
    WHERE sn.begin_interval_time >= SYSDATE - 1
    GROUP BY s.sql_id
),
ranked_sql AS (
    -- 2. 針對各個維度進行排名
    SELECT 
        m.*,
        RANK() OVER (ORDER BY total_elapsed_sec DESC) as rank_elapsed,
        RANK() OVER (ORDER BY total_cpu_sec DESC) as rank_cpu,
        RANK() OVER (ORDER BY total_io_wait_sec DESC) as rank_io,
        RANK() OVER (ORDER BY total_gets DESC) as rank_gets,
        RANK() OVER (ORDER BY total_reads DESC) as rank_reads,
        RANK() OVER (ORDER BY total_phys_read_req DESC) as rank_unoptimized,
        RANK() OVER (ORDER BY total_execs DESC) as rank_execs,
        RANK() OVER (ORDER BY total_parse_calls DESC) as rank_parse,
        RANK() OVER (ORDER BY max_sharable_mem_mb DESC) as rank_mem,
        RANK() OVER (ORDER BY max_version_count DESC) as rank_version
    FROM sql_metrics m
)
-- 3. 結合 SQL 文字並輸出 (此處以 Elapsed Time 前 20 名為例)
SELECT * FROM (
    SELECT 
        r.sql_id,
        r.total_elapsed_sec as "Elapsed(s)",
        r.total_cpu_sec as "CPU(s)",
        r.total_io_wait_sec as "IO_Wait(s)",
        r.total_gets as "Gets",
        r.total_reads as "Reads",
        r.total_execs as "Execs",
        r.total_parse_calls as "Parses",
        ROUND(r.max_sharable_mem_mb, 2) as "Mem(MB)",
        r.max_version_count as "Versions",
        -- 顯示前 100 個字元的 SQL 文字
        DBMS_LOB.SUBSTR(st.sql_text, 100, 1) as sql_snippet
    FROM ranked_sql r
    LEFT JOIN dba_hist_sqltext st ON r.sql_id = st.sql_id
    -- 你可以更換下方的排序條件來查看不同的 TOP 榜單
    ORDER BY r.rank_elapsed ASC 
) WHERE ROWNUM <= 20

執行結果範例

oracle AWR PERF TREND HISTORY

Thu, 15 Jan 2026 21:23:49 +0800

最近常常接觸 AWR 報表分析，想說AWR已經有儲存資料庫運作歷史資訊，為何不依據裡頭的紀錄資訊進行效能分析呢？因此開始著手研究如何將AWR的資料呈現出趨勢資料～

Oracle AWR 常用筆記

Fri, 02 Jan 2026 20:57:49 +0800

--手動執行快照
exec DBMS_WORKLOAD_REPOSITORY.CREATE_SNAPSHOT();

-- 設定AWR 快照區間
BEGIN
  DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS(
    retention => 259200,   -- 以分鐘為單位 (7天 = 7 * 24 * 60)
    interval  => 10        -- 以分鐘為單位
  );
END;

-- 查詢 AWR 資料範圍
select SNAP_ID,DBID,INSTANCE_NUMBER,BEGIN_INTERVAL_TIME,END_INTERVAL_TIME 
FROM awr_pdb_snapshot 
WHERE
END_INTERVAL_TIME >= to_date('2025-12-27 22:55:00','yyyy-mm-dd hh24:mi:ss') 
AND BEGIN_INTERVAL_TIME <= to_date('2025-12-28 05:20:00','yyyy-mm-dd hh24:mi:ss') 
AND INSTANCE_NUMBER=1 
ORDER BY SNAP_ID;

-- 輸出 AWR HTML
SELECT 
DBMS_WORKLOAD_REPOSITORY.AWR_REPORT_HTML(1979277899,1,88, 89)
FROM dual;

--輸出AWR TEXT
SELECT output FROM TABLE(
   DBMS_WORKLOAD_REPOSITORY.AWR_REPORT_TEXT(1979277899,1,88, 89)
  );

SELECT output FROM TABLE(
   DBMS_WORKLOAD_REPOSITORY.AWR_REPORT_HTML(1979277899,1,88, 89)
  );

--匯出 AWR 所有資料
 
EXECUTE DBMS_WORKLOAD_REPOSITORY.AWR_EXP(
dmpfile => ‘awrdat’,
dmpdir => ‘DATA_PUMP_DIR’,
bid => 1,
eid => 1000000
);

--匯入 AWR 所有資料

EXECUTE DBMS_WORKLOAD_REPOSITORY.AWR_IMP(
dmpfile => ‘awrdat’,
dmpdir => ‘DATA_PUMP_DIR’
);

-- AWR 空間使用率
SELECT space_usage_kbytes/1024 MB_used 
FROM v$sysaux_occupants 
WHERE occupant_name='SM/AWR';

generate_awr.sh

#!/bin/bash
ORACLE_SID=ORCLCDB
ORACLE_HOME=/u01/app/oracle/product/19.3/dbhome_1
REPORT_FILE="awr_report_$(date +%Y%m%d).html"

sqlplus -s / as sysdba <<EOF
set pages 0 lines 200 feedback off
spool $REPORT_FILE
SELECT dbms_workload_repository.awr_report_html(
  (SELECT dbid FROM v\$database),
  (SELECT instance_number FROM v\$instance),
  (SELECT MAX(snap_id)-1 FROM dba_hist_snapshot),
  (SELECT MAX(snap_id) FROM dba_hist_snapshot)
) FROM dual;
spool off
EOF

echo "AWR報告路徑：$REPORT_FILE"

Reference
#

Redo test

Mon, 29 Dec 2025 23:50:53 +0800

Test Summary
#

insert and delete

item	start_storm	start_storm_batch_commit	start_storm_optimized	start_storm_hint
test result	success	execute timeout	success	success
time range	2025-12-30 14:34:06 - 2025-12-30 14:37:50	2025-12-29 10:01:54 - 2025-12-29 21:49:39	2025-12-30 09:28:01 - 2025-12-30 09:34:40	2025-12-30 09:40:52 - 2025-12-30 09:42:25
total run time(s)	224	42465	399	93

CTAS

item	start_ctas	start_ctas_nologging	start_ctas_nologging_paralel
test result	success	success	success
time range	2025-12-30 10:50:23 - 2025-12-30 10:51:54	2025-12-30 11:01:09 - 2025-12-30 11:01:11	2025-12-30 13:58:01 - 2025-12-30 13:58:03
total run time(s)	91	2	2

測試環境
#

DB version: Oracle 19c
OS: Oracle linux 7
CPU: 4 vCore
RAM: 8G

測試前準備
#

SELECT GROUP# , status, bytes/1024/1024 FROM v$log l;

GROUP#|STATUS  |BYTES/1024/1024
------+--------+---------------
     1|INACTIVE|            200
     2|INACTIVE|            200
     3|ACTIVE  |            200
     4|CURRENT |             10
     5|UNUSED  |             10
     6|UNUSED  |             10

ALTER DATABASE ADD LOGFILE GROUP 4 ('/u01/app/oracle/oradata/DB/redo04.log') SIZE 10M;
ALTER DATABASE ADD LOGFILE GROUP 5 ('/u01/app/oracle/oradata/DB/redo05.log') SIZE 10M;
ALTER DATABASE ADD LOGFILE GROUP 6 ('/u01/app/oracle/oradata/DB/redo06.log') SIZE 10M;

ALTER SYSTEM SWITCH LOGFILE;
ALTER SYSTEM CHECKPOINT;

ALTER DATABASE DROP LOGFILE GROUP 1;
ALTER DATABASE DROP LOGFILE GROUP 2;
ALTER DATABASE DROP LOGFILE GROUP 3;


GROUP#|STATUS  |BYTES/1024/1024
------+--------+---------------
     4|CURRENT |             10
     5|UNUSED  |             10
     6|UNUSED  |             10

BEGIN
  DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS(
    retention => 259200,   -- 以分鐘為單位 (7天 = 7 * 24 * 60)
    interval  => 10        -- 以分鐘為單位
  );
END;

-- 建立測試 User (若已有可跳過)
CREATE USER pollo IDENTIFIED BY oracle;
GRANT CONNECT, RESOURCE, DBA TO demo_user;

-- 準備來源表 (約 100~200MB 資料量)
CREATE TABLE pollo.src_data NOLOGGING AS
SELECT rownum AS id, a.* FROM dba_objects a, (SELECT 1 FROM dual CONNECT BY level <= 20) b;

-- 以測試 User 登入
CONN pollo/oracle

-- 準備目標空表
CREATE TABLE dest_table AS SELECT * FROM src_data WHERE 1=0;


CREATE TABLE stress_demo_log(
OBJID NUMERIC GENERATED BY DEFAULT AS IDENTITY ,
DATE_CREATED DATE DEFAULT SYSDATE NOT NULL,
test_id NUMERIC,
test_name varchar2(100),
DESC# nvarchar2(200),
status varchar2(30),
CONSTRAINT stress_demo_log_pk PRIMARY KEY (OBJID)
);

-- 確保 Package 已經是 VALID 狀態
SELECT type, line, position, text 
FROM all_errors 
WHERE name = 'PKG_STRESS_DEMO' 
  AND owner = 'POLLO'
ORDER BY type, sequence;

there is my test package sql script

各式檔案雜湊

Wed, 11 Jun 2025 11:54:59 +0800

oracle
#

AIX.PPC64_193000_db_home.zip
- tags: oracle
- sha256sum: 03cb2aff2984b47597108572048d4ee432c7e05a74362829f5ddb5540baf56b1
oracle-database-preinstall-19c-1.0-2.el8.x86_64.rpm
- tags: oracle
- sha256sum: 141926e265ff3cbc8ce7c8a67ab2ad2d40d5fb4de3a105d0cdd20de4e23dbd2a
oracle-database-preinstall-21c-1.0-1.el8.x86_64.rpm
- tags: oracle
- sha256sum: 3e99be00f010988370885c1e58acbc6d8a93c6d2d790cbb95420dd8ea554b36b
V982063-01.zip
- tags: oracle
- sha256sum: ba8329c757133da313ed3b6d7f86c5ac42cd9970a28bf2e6233f3235233aa8d8
v9.7fp7_linuxx64_server.tar.gz
- tags: db2
- sha256sum: 8b9a15035204aa99dfc00217849cf79996adb1b625306951121e849c48dc344b
OracleLinux-R9-U6-x86_64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: 6aab225832263299c209aa1096b665e36c789ea6d0da77c19920e6ad21620bb7
OracleLinux-R9-U6-x86_64-boot.iso
- tags: oracle, Oracle Linux
- sha256sum: d420b4d02ca8172236dfe60cb2c0d2b407645e9a8ed460c5ccdf7b6a868ea8de
OracleLinux-R9-U6-x86_64-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: 499dd0df4969fbd06d0d3083a572504b51aca5a4428bcbff51a68c47925bcbad
OracleLinux-R9-U6-aarch64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: 5480e921172545afd6dd6c09b6e1d6df8f24ca109a2ca4ce6b8b641597bb67ea
OracleLinux-R9-U6-aarch64-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: 18ad394a43bfb3ade82b5625fa335d21ba544fd91ddb4f0bdb5edeed6b76fda2
OracleLinux-R8-U10-x86_64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: 7676a80eeaafa16903eebb2abba147a3afe230b130cc066d56fdd6854d8da900
OracleLinux-R8-U10-x86_64-boot.iso
- tags: oracle, Oracle Linux
- sha256sum: c7009ca2b28ddbedd6c09fc9141f933dec01a6ea73c503634786809746af1906
OracleLinux-R8-U10-x86_64-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: a14ef5c626b6fba5fa0667068d3a9cabbb533d8a6ab45635078e6bd9d87d80d6
OracleLinux-R8-U10-aarch64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: feff28528569308896f18f7da330a726cc94563fd8c7f26f64fe486961fb490e
OracleLinux-R8-U10-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: f45bcb23008020d6f210fd1eea598e2aa98800852c54925744328641af83ff0c
OracleLinux-R7-U9-Server-x86_64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: 28d2928ded40baddcd11884b9a6a611429df12897784923c346057ec5cdd1012
x86_64-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: 6da0323423f3a52d20d1021c2651885052319ca4ace7532859d8d20640829004
x86_64-boot.iso
- tags: oracle, Oracle Linux
- sha256sum: 4b87b6009500f2eb81e52548c6c31f43dc60797193da7c4c47ff9381e14fff6e
aarch64-boot-uek.iso
- tags: oracle, Oracle Linux
- sha256sum: 0e771bf2b2439d79f8538a9b93d0e1f78b04c045e5644406471d34222fc9f35c
OracleLinux-R7-U9-Server-aarch64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: fd2c1b1e26858576534f6e6c4cf000a15cd81bec010dad5e827b204a14a1750e
V978757-01.iso
- tags: oracle, Oracle Linux
- sha256sum: 625044388ee60a031965a42a32f4c1de0c029268975edcd542fd14160e0dadcb
OracleLinux-R6-U10-Server-x86_64-dvd.iso
- tags: oracle, Oracle Linux
- sha256sum: 625044388ee60a031965a42a32f4c1de0c029268975edcd542fd14160e0dadcb
x86_64-boot.iso
- tags: oracle, Oracle Linux , V978753-01.iso
- sha256sum: b8f73738bc605b952f5bf2ed04c40c880e5c119588b3f0af647e237fae2232b8
x86_64-boot-uek.iso
- tags: oracle, Oracle Linux , V978755-01.iso
- sha256sum: 001c05d5ea90341de768ba8bde4bbb0209f2b5e06996dc8637b9d3e86df206fe
OracleLinux-R6-U10-Server-i386-dvd.iso
- tags: oracle, Oracle Linux, V978754-01.iso
- sha256sum: 73755329985c96805c1d3ef31dfcb7f7561cd139cc8fe9226b8e794ad7ea4bd4
i386-boot.iso
- tags: oracle, Oracle Linux, V978751-01.iso
- sha256sum: 6a16c63d9d22f333181e7055b0f839e3f3e805bded281ab165cf4d2b4be5af20
i386-boot-uek.iso
- tags: oracle, Oracle Linux, V978752-01.iso
- sha256sum: 7a6478f87c54453eedc0916d67bbfbf892cfb71a08bca7fac580e64b830751c8

jasperReports
#

jasperReportServer-ultimate-guide-7.9.pdf
- tags: jasperReports
- sha256sum: 46322eaa9b37b0322b90c07981c3dc30617fb697735257ef25d6d570749129ba
Jasperserver-7.8.0.zip
- tags: jasperReports
- 28bff90c3f2cd4ef38948a700ea3ee829c75bca168c2cb1409da844e7ca294d5
TIB_js-jrs-cp_7.8.0_linux_x86_64.run
- tags: jasperReports
- e19e3d39b73f29ee96987c271d75b859c800e37913d11c3b5c855a50634982af
TIB_js-jrs-cp_8.0.0_bin.zip
- tags: jasperReports
- 6f60dca5b4dd48ce20e7ea0e42902c62082dca89f3695188890224de91f98a52
TIB_js-jrs-cp_8.0.0_macosx_x86_64.zip
- tags: jasperReports
- 6a6e5e109a92e9d95924ec21dd0d95606a1675ee2997d77b77013186248151cc
TIB_js-jrs-cp_8.0.0_win_x86_64.exe
- tags: jasperReports
- 6cee8503a493582923d00caf972f33975afff6550ce79e3b0bc1bb1cc7944792
TIB_js-jrs-cp_8.1.0_bin.zip
- tags: jasperReports
- 4c1edac34490c99c14d142acdac432154c94a7226fa718749afaf3e2d3739e30
TIB_js-jrs-cp_8.2.0_bin.zip
- tags: jasperReports
- 3659c5e6be23ab49a5a095741fd8111d8246b1622788e44b2af8b2295a384575

Oracle Clusterware 初學

Wed, 03 Jul 2024 23:57:49 +0800

指令 `crsctl status res -t`
#

`1`	`crsctl status res -t`

功能: 顯示集群資源的狀態，以表格形式展示各資源的詳細信息。
參數: -t 是 –terse 的縮寫，表示以簡潔的表格格式輸出信息。

示例
#

NAME           TARGET  STATE        SERVER                 STATE_DETAIL
--------------------------------------------------------------
ora.net1.network ONLINE ONLINE       node1, node2          ONLINE
ora.asm         ONLINE ONLINE       node1                  ONLINE
ora.db          ONLINE ONLINE       node1                  ONLINE
ora.listener    ONLINE ONLINE       node1, node2          ONLINE

示例解釋
#

ora.diskgroup1: 這是一個磁碟組資源，當前狀態是 ONLINE。
ora.db1: 這是資料庫資源，當前狀態是 ONLINE。
ora.listener1: 這是資料庫監聽器資源，當前狀態是 ONLINE。

主要字段解釋
#

NAME: 資源的名稱。
TARGET: 設定的目標狀態。
STATE: 當前狀態。
SERVER: 資源所在的節點。
STATE_DETAIL: 其他詳細狀態信息。

常見用途
#

檢查資源狀態: 確認集群中各個資源的運行狀態。
故障排查: 用於排查集群問題，了解哪些資源可能存在問題。
監控集群健康: 確保所有必要的資源都在正常運行。

檢查資源詳細信息: `crsctl status res <resource_name> -details`
#

查看集群狀態: `crsctl check cluster`
#

查看節點狀態: `crsctl status resource -t`
#

參考資料
#

1 Introduction to Oracle Clusterware

Oracle OCFS2 初學

Wed, 03 Jul 2024 23:50:53 +0800

Oracle Cluster File System 2 (OCFS2) 文件系统

指令
#

手動掛載
#

`1`	`mount -t ocfs2 /dev/xvdb1 /data`

處理結果

Oracle PL/SQL 學習筆記

Wed, 13 Mar 2024 14:54:24 +0800

切字串成陣列

regexp_substr
#

select regexp_substr (
           :str,
           '[^,]+',
           1,
           level
         ) value
  from   dual

參考資料
#

Oracle PL/SQL 學習筆記

Wed, 13 Mar 2024 14:42:44 +0800

判斷式 if else
#

if a > b then
  t := 0;
elsif
  a > c
then
  t := 1;
else
  t := 2;
end if;

迴圈
#

LOOP

    ...

    V_LOOP_CONT := V_LOOP_CONT +1 ;
    IF V_TOTAL_LOOP_CONT <= V_LOOP_CONT THEN 
        EXIT; 
    END IF;
  END LOOP;

package
#

head

CREATE OR REPLACE PACKAGE PK_1 AS
/******************************************************************************
   NAME:       PK_1
   PURPOSE:    PK_1

   REVISIONS:
   Ver        Date        Author           Description
   ---------  ----------  ---------------  ------------------------------------
   1.0        2024-03-13  PolloChang       1. 初次新增
******************************************************************************/

  FUNCTION FUNCTION_NAME_1 (P_VAL IN VARCHAR2) RETURN VARCHAR2;

END PK_1;

body

CREATE OR REPLACE PACKAGE PK_1 AS
/******************************************************************************
   NAME:       PK_1
   PURPOSE:    PK_1

   REVISIONS:
   Ver        Date        Author           Description
   ---------  ----------  ---------------  ------------------------------------
   1.0        2024-03-13  PolloChang       1. 初次新增
******************************************************************************/

  FUNCTION FUNCTION_NAME_1 (P_VAL IN VARCHAR2) RETURN VARCHAR2
  AS
  V_RETUREVAL VARCHAR2(1000);
  
  begin

  V_RETUREVAL := '';
  
  ...
    
  return V_RETUREVAL;
  end;


END PK_1;

參考資料
#

Oracle 學習筆記

Thu, 07 Mar 2024 22:43:06 +0800

最近在工作上遇到Oracle 發生的系統效能問題，雖然有順利解決了，但是在解決的過程中似乎覺的自己對Oracle知識相當貧乏，於是在這邊筆記一下我學到的知識。

oracle 監控SQL 效能

Tue, 05 Mar 2024 00:02:22 +0800

這幾天在調校系統校能，想說從資料庫快取中看看能不能找出花費系統高的系統資源，後來從網路拼拼湊湊加上過去的經驗拼湊下面的監控SQL。拼湊好後，會透過kettle 搭配系統排程匯出查詢結果。

oracle 記憶體監控

Mon, 04 Mar 2024 00:02:22 +0800

透過 v$sgastat 、v$pgastat 檢測 SGA PGA 空間使用狀況

select name,used,free, pctused, max_allocated , sysdate opdt from (
select name,total,round(total-free,2) used, round(free,2) free,round((total-free)/total*100,2) pctused, round(MAX_ALLOCATED,2) MAX_ALLOCATED from
(
select 'SGA' name,(select sum(value/1024/1024) from v$sga) total,
(SELECT SUM (bytes/1024/1024)  FROM V$SGAINFO WHERE NAME='Maximum SGA Size') MAX_ALLOCATED ,
(select sum(bytes/1024/1024) from v$sgastat where name='free memory')free 
from dual
)
union
select name,total,round(used,2)used,round(total-used,2)free,round(used/total*100,2) pctused,round(MAX_ALLOCATED,2)   from (
select 'PGA' name,(select value/1024/1024 total from v$pgastat where name='aggregate PGA target parameter')total,
(SELECT (value/1024/1024)  FROM V$PGASTAT WHERE NAME = 'maximum PGA allocated') MAX_ALLOCATED,
(select value/1024/1024 used from v$pgastat where name='total PGA allocated')used 
from dual
)
);

sqlplus / as sysdba << EOF
@/home/oracle/check-health-script/check-memory.sql
exit
EOF

awrrpt
#

sqlplus / as sysdba << EOF
@/u01/app/oracle/product/12.2.0/dbhome_1/rdbms/admin/awrrpt.sql
exit
EOF

參考資料
#

Database Reference-8.121 V$PGASTAT

Oracle on PolloChang 工作筆記

open Statspack

Oracle Index 維護方式

Oracle 11g #

1. 清查統計資訊：確認資料的「新鮮度」 #

How to check need redo size

Oracle files design

maa consolidation TW

Oracle 資料庫整合最佳實踐深度研究報告：基於 MAA 參考架構與 AI 原生技術的全面實施指南 #

AL32UTF8_編碼起源與發展

全球化資訊時代的基石：Oracle AL32UTF8 字元集起源、技術演進與架構深度研究報告 #

Oracle Encoding History - AL32UTF8

The Cornerstone of the Globalized Information Era: A Deep Research Report on the Origins, Technical Evolution, and Architecture of Oracle AL32UTF8 #

deploy Oracle26ai on Oracle Linux 8

資料庫環境 #

準備檔案 #

deploy Oracle19c RAC on RHEL9

準備檔案 #

KVM #

環境資訊 #

硬體資訊 #

第一個版本(notebook version): 這是我的筆記型電腦 #

第二個版本(lab version): 這是我的實驗室主機 #

VM Host #

notebook version #

lab version #

資料庫系統 #

notebook version #

lab version #

規劃 ASM #

SQL tunning task common

第一步：設計與建立資料表 (DDL) #

SQL tunning task MES

第一步：MES 系統資料表設計 (DDL) #

oracle AWR TOP SQL

尋找方式 #

1. SQL ordered by TOP Event #

oracle AWR PERF TREND HISTORY

Oracle AWR 常用筆記

Reference #

Redo test

Test Summary #

測試環境 #

測試前準備 #

各式檔案雜湊

oracle #

jasperReports #

Oracle Clusterware 初學

指令 crsctl status res -t #

示例 #

示例解釋 #

主要字段解釋 #

常見用途 #

檢查資源詳細信息: crsctl status res <resource_name> -details #

查看集群狀態: crsctl check cluster #

查看節點狀態: crsctl status resource -t #

參考資料 #

Oracle OCFS2 初學

指令 #

手動掛載 #

Oracle PL/SQL 學習筆記

regexp_substr #

參考資料 #

Oracle PL/SQL 學習筆記

判斷式 if else #

迴圈 #

package #

參考資料 #

Oracle 學習筆記

oracle 監控SQL 效能

oracle 記憶體監控

awrrpt #

參考資料 #

Oracle 11g
#

1. 清查統計資訊：確認資料的「新鮮度」
#

Oracle 資料庫整合最佳實踐深度研究報告：基於 MAA 參考架構與 AI 原生技術的全面實施指南
#

全球化資訊時代的基石：Oracle AL32UTF8 字元集起源、技術演進與架構深度研究報告
#

The Cornerstone of the Globalized Information Era: A Deep Research Report on the Origins, Technical Evolution, and Architecture of Oracle AL32UTF8
#

資料庫環境
#

準備檔案
#

準備檔案
#

KVM
#

環境資訊
#

硬體資訊
#

第一個版本(notebook version): 這是我的筆記型電腦
#

第二個版本(lab version): 這是我的實驗室主機
#

VM Host
#

notebook version
#

lab version
#

資料庫系統
#

notebook version
#

lab version
#

規劃 ASM
#

第一步：設計與建立資料表 (DDL)
#

第一步：MES 系統資料表設計 (DDL)
#

尋找方式
#

1. SQL ordered by TOP Event
#

Reference
#

Test Summary
#

測試環境
#

測試前準備
#

oracle
#

jasperReports
#

指令 `crsctl status res -t`
#

示例
#

示例解釋
#

主要字段解釋
#

常見用途
#

檢查資源詳細信息: `crsctl status res <resource_name> -details`
#

查看集群狀態: `crsctl check cluster`
#

查看節點狀態: `crsctl status resource -t`
#

參考資料
#

指令
#

手動掛載
#

regexp_substr
#

參考資料
#

判斷式 if else
#

迴圈
#

package
#

參考資料
#

awrrpt
#

參考資料
#