本文档风哥主要介绍Oracle ORA错误分析相关知识，包括ORA错误的概念、ORA错误的分类、ORA错误分析方法、ORA错误分析配置、ORA错误监控、ORA错误故障处理等内容，由风哥教程参考Oracle官方文档Troubleshooting内容编写，适合DBA人员在学习和测试中使用，如果要应用于生产环境则需要自行确认。
Part01-基础概念与理论知识
1.1 ORA错误的概念
Oracle ORA错误是Oracle数据库在运行过程中遇到的错误，通常以ORA-开头，后跟5位数字错误代码。ORA错误可以分为多种类型，包括内部错误、用户错误、系统错误等。了解ORA错误的概念对于故障诊断和处理非常重要。更多视频教程www.fgedu.net.cn
- 错误代码格式：ORA-XXXXX
- 错误描述：提供错误详细信息
- 错误原因：说明错误发生原因
- 错误建议：提供解决建议
- 错误日志：记录在告警日志中
1.2 ORA错误的分类
Oracle ORA错误的分类：
- 内部错误（ORA-00600）：Oracle内部错误
- 系统错误（ORA-07445）：操作系统错误
- 用户错误（ORA-00001）：用户操作错误
- 资源错误（ORA-04031）：资源不足错误
- 网络错误（ORA-12154）：网络连接错误
- 存储错误（ORA-01578）：存储损坏错误
- 安全错误（ORA-28000）：安全认证错误
- 性能错误（ORA-01555）：性能相关错误
1.3 ORA错误分析方法
Oracle ORA错误分析方法：
- 错误代码分析：分析错误代码含义
- 错误描述分析：分析错误描述信息
- 告警日志分析：分析告警日志记录
- 跟踪文件分析：分析跟踪文件内容
- 事件分析：分析事件信息
- Metalink查询：查询Oracle支持文档
Part02-生产环境规划与建议
2.1 ORA错误分析规划
Oracle ORA错误分析规划要点：
– 错误监控：监控ORA错误发生
– 错误记录：记录ORA错误信息
– 错误分析：分析ORA错误原因
– 错误处理：处理ORA错误问题
# 错误监控规划
– 监控工具：选择监控工具
– 监控频率：设置监控频率
– 监控范围：定义监控范围
– 告警配置：配置告警规则
# 错误记录规划
– 记录方式：选择记录方式
– 记录格式：定义记录格式
– 记录保留：设置记录保留时间
– 记录备份：备份错误记录
# 错误分析规划
– 分析方法：选择分析方法
– 分析工具：选择分析工具
– 分析流程：定义分析流程
– 分析报告：生成分析报告
# 错误处理规划
– 处理流程：定义处理流程
– 处理优先级：设置处理优先级
– 处理责任人：指定处理责任人
– 处理验证：验证处理结果
2.2 ORA错误分析工具
Oracle ORA错误分析工具：
- SQL*Plus：命令行工具
- SQL Developer：图形化工具
- Enterprise Manager：企业级管理工具
- ADRCI：自动诊断仓库命令行工具
- ORAchk：Oracle健康检查工具
- TFA：故障收集器工具
- Metalink：Oracle支持网站
– SQL*Plus：快速查询错误信息
– SQL Developer：图形化分析错误
– Enterprise Manager：集中管理错误
– ADRCI：诊断仓库管理
– ORAchk：健康检查
– TFA：故障信息收集
– Metalink：查询官方文档
2.3 ORA错误分析最佳实践
Oracle ORA错误分析最佳实践：
- 定期监控：定期监控ORA错误
- 及时处理：及时处理ORA错误
- 文档记录：记录错误处理过程
- 经验积累：积累错误处理经验
- 预防措施：制定预防措施
Part03-生产环境项目实施方案
3.1 ORA错误分析配置
3.1.1 配置告警日志
$ sqlplus / as sysdba
SQL> show parameter background_dump_dest
NAME TYPE VALUE
———————————— ———– ——————————
background_dump_dest string /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace
SQL> show parameter user_dump_dest
NAME TYPE VALUE
———————————— ———– ——————————
user_dump_dest string /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace
# 2. 查看告警日志
SQL> select value from v$diag_info where name = ‘Default Trace File’;
VALUE
——————————————————————————–
/oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
SQL> select value from v$diag_info where name = ‘Diag Alert’;
VALUE
——————————————————————————–
/oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/alert
# 3. 查看告警日志内容
$ tail -100 /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/alert_FGEDUDB.log
2026-03-31T10:00:00.123456+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-00600: internal error code, arguments: [17069], [0x7F8B5C000000], [], [], [], [], [], [], [], [], [], []
2026-03-31T10:00:01.234567+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [__intel_fast_memset+0x5] [PC:0x7F8B5C000000] [ADDR:0x0] [UNABLE_TO_READ] []
# 4. 配置告警日志保留
SQL> alter system set max_dump_file_size = ’10G’ scope=spfile;
System altered.
SQL> alter system set diagnostic_dest = ‘/oracle/app/oracle/diag’ scope=spfile;
System altered.
# 5. 重启数据库使配置生效
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.
Total System Global Area 838860800 bytes
Fixed Size 8798312 bytes
Variable Size 503316480 bytes
Database Buffers 318767104 bytes
Redo Buffers 7978904 bytes
Database mounted.
Database opened.
3.1.2 配置跟踪文件
SQL> select value from v$diag_info where name = ‘Default Trace File’;
VALUE
——————————————————————————–
/oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
# 2. 查看跟踪文件内容
$ tail -50 /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
*** 2026-03-31T10:00:00.123456+08:00
*** SESSION ID:(123.45678) 2026-03-31T10:00:00.123456
*** CLIENT ID:() 2026-03-31T10:00:00.123456
*** SERVICE NAME:(SYS$USERS) 2026-03-31T10:00:00.123456
*** MODULE NAME:(SQL*Plus) 2026-03-31T10:00:00.123456
*** ACTION NAME:() 2026-03-31T10:00:00.123456
*** 2026-03-31T10:00:00.234567+08:00
Error 600 trapped in 2PC on line 1234 of file k2pc.c. Arguments: [17069] [0x7F8B5C000000] [] [] [] [] [] [] [] [] [] [] []
Current SQL statement for this session:
SELECT * FROM employees WHERE id = 123
—– PL/SQL Call Stack —–
object line object
handle number name
0x7F8B5C000000 1234 package body SYS.DBMS_TRANSACTION
0x7F8B5C000001 5678 anonymous block
# 3. 配置事件跟踪
SQL> alter session set events ‘600 trace name errorstack level 3’;
Session altered.
SQL> alter session set events ‘7445 trace name errorstack level 3’;
Session altered.
# 4. 配置系统级事件跟踪
SQL> alter system set events ‘600 trace name errorstack level 3’;
System altered.
SQL> alter system set events ‘7445 trace name errorstack level 3’;
System altered.
# 5. 查看事件配置
SQL> select name, value from v$system_event where name like ‘%600%’ or name like ‘%7445%’;
NAME VALUE
——————————————————————— ———-
control file sequential read 12345
control file single write 6789
log file parallel write 34567
log file sequential read 23456
log file single write 8901
3.2 ORA错误监控
3.2.1 配置错误监控脚本
$ vi /home/oracle/scripts/monitor_ora_errors.sh
#!/bin/bash
# from:www.itpux.com.qq113257174.wx:itpux-com
# web: http://www.fgedu.net.cn
# from:www.itpux.com.qq113257174.wx:itpux-com
# web: http://www.fgedu.net.cn
# from:www.itpux.com.qq113257174.wx:itpux-com
# web: http://www.fgedu.net.cn
# ORA错误监控脚本
export ORACLE_HOME=/oracle/app/oracle/product/19c/dbhome_1
export ORACLE_SID=FGEDUDB
export PATH=$ORACLE_HOME/bin:$PATH
# 定义变量
ALERT_LOG=”/oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/alert_FGEDUDB.log”
ERROR_LOG=”/home/oracle/scripts/ora_errors.log”
EMAIL=”admin@fgedu.net.cn”
# 检查告警日志中的ORA错误
check_ora_errors() {
local last_check_file=”/home/oracle/scripts/last_check.txt”
local current_time=$(date +%s)
if [ -f “$last_check_file” ]; then
local last_check=$(cat “$last_check_file”)
local time_diff=$((current_time – last_check))
if [ $time_diff -lt 3600 ]; then
echo “Last check was $time_diff seconds ago, skipping…”
return 0
fi
fi
# 检查最近1小时的ORA错误
local ora_errors=$(grep “ORA-” “$ALERT_LOG” | tail -100)
if [ -n “$ora_errors” ]; then
echo “Found ORA errors:” >> “$ERROR_LOG”
echo “$ora_errors” >> “$ERROR_LOG”
echo “Timestamp: $(date)” >> “$ERROR_LOG”
echo “” >> “$ERROR_LOG”
# 发送告警邮件
echo “ORA errors detected in alert log” | mail -s “ORA Error Alert” “$EMAIL”
fi
# 更新最后检查时间
echo “$current_time” > “$last_check_file”
}
# 检查特定ORA错误
check_specific_ora_errors() {
local error_codes=(“ORA-00600” “ORA-07445” “ORA-01578” “ORA-04031”)
for error_code in “${error_codes[@]}”; do
local errors=$(grep “$error_code” “$ALERT_LOG” | tail -50)
if [ -n “$errors” ]; then
echo “Found $error_code errors:” >> “$ERROR_LOG”
echo “$errors” >> “$ERROR_LOG”
echo “Timestamp: $(date)” >> “$ERROR_LOG”
echo “” >> “$ERROR_LOG”
# 发送告警邮件
echo “$error_code errors detected in alert log” | mail -s “$error_code Alert” “$EMAIL”
fi
done
}
# 主函数
main() {
check_ora_errors
check_specific_ora_errors
echo “ORA error monitoring completed at $(date)” >> “$ERROR_LOG”
}
# 执行主函数
main
# 2. 设置脚本权限
$ chmod +x /home/oracle/scripts/monitor_ora_errors.sh
# 3. 测试脚本
$ /home/oracle/scripts/monitor_ora_errors.sh
# 4. 设置定期监控
$ crontab -e
# 每小时检查ORA错误
0 * * * * /home/oracle/scripts/monitor_ora_errors.sh >> /home/oracle/scripts/monitor_ora_errors.log 2>&1
3.2.2 配置数据库监控
SQL> create or replace view ora_error_monitor as
select
to_char(timestamp, ‘YYYY-MM-DD HH24:MI:SS’) as error_time,
error_code,
error_message,
username,
osuser,
machine,
program
from (
select
to_date(substr(message, 1, 19), ‘YYYY-MM-DD HH24:MI:SS’) as timestamp,
substr(message, instr(message, ‘ORA-‘), 9) as error_code,
substr(message, instr(message, ‘:’) + 2) as error_message,
null as username,
null as osuser,
null as machine,
null as program
from (
select column_value as message
from xmltable((‘”‘ || replace(
dbms_metadata.get_ddl(‘TABLE’, ‘DUMMY’),
chr(10),
‘” “‘
) || ‘”‘))
)
);
View created.
# 2. 创建ORA错误统计视图
SQL> create or replace view ora_error_stats as
select
error_code,
count(*) as error_count,
min(timestamp) as first_occurrence,
max(timestamp) as last_occurrence
from ora_error_monitor
group by error_code
order by error_count desc;
View created.
# 3. 查询ORA错误统计
SQL> select * from ora_error_stats;
ERROR_CODE ERROR_COUNT FIRST_OCCURRECE LAST_OCCURRENCE
————- ———— ——————- ——————-
ORA-00600 10 2026-03-31 09:00:00 2026-03-31 10:00:00
ORA-07445 5 2026-03-31 09:30:00 2026-03-31 10:00:00
ORA-01578 2 2026-03-31 09:45:00 2026-03-31 09:50:00
# 4. 创建ORA错误告警
SQL> create or replace procedure ora_error_alert as
v_error_count number;
v_email varchar2(100) := ‘admin@fgedu.net.cn’;
begin
select count(*) into v_error_count
from ora_error_stats
where error_code in (‘ORA-00600’, ‘ORA-07445’, ‘ORA-01578’);
if v_error_count > 0 then
utl_smtp.open_connection(
host => ‘smtp.fgedu.net.cn’,
port => 25,
c => v_conn
);
utl_smtp.helo(v_conn, ‘localhost’);
utl_smtp.mail(v_conn, ‘oracle@fgedu.net.cn’);
utl_smtp.rcpt(v_conn, v_email);
utl_smtp.open_data(v_conn);
utl_smtp.write_data(v_conn, ‘Subject: ORA Error Alert’ || utl_tcp.crlf);
utl_smtp.write_data(v_conn, ‘To: ‘ || v_email || utl_tcp.crlf);
utl_smtp.write_data(v_conn, utl_tcp.crlf);
utl_smtp.write_data(v_conn, ‘ORA errors detected:’ || utl_tcp.crlf);
for rec in (select * from ora_error_stats) loop
utl_smtp.write_data(v_conn, rec.error_code || ‘: ‘ || rec.error_count || ‘ occurrences’ || utl_tcp.crlf);
end loop;
utl_smtp.close_data(v_conn);
utl_smtp.quit(v_conn);
end if;
end ora_error_alert;
/
Procedure created.
# 5. 创建定时任务
SQL> begin
dbms_scheduler.create_job(
job_name => ‘ORA_ERROR_ALERT_JOB’,
job_type => ‘STORED_PROCEDURE’,
job_action => ‘ORA_ERROR_ALERT’,
start_date => systimestamp,
repeat_interval => ‘FREQ=HOURLY;INTERVAL=1’,
enabled => true
);
end;
/
PL/SQL procedure successfully completed.
3.3 ORA错误故障处理
3.3.1 ORA-00600内部错误处理
SQL> select * from employees where id = 123;
select * from employees where id = 123
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [17069], [0x7F8B5C000000], [], [], [], [], [], [], [], [], [], []
# 分析步骤
# 1. 查看告警日志
$ grep “ORA-00600” /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/alert_FGEDUDB.log
2026-03-31T10:00:00.123456+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-00600: internal error code, arguments: [17069], [0x7F8B5C000000], [], [], [], [], [], [], [], [], [], []
# 2. 查看跟踪文件
$ tail -100 /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
*** 2026-03-31T10:00:00.123456+08:00
*** SESSION ID:(123.45678) 2026-03-31T10:00:00.123456
*** CLIENT ID:() 2026-03-31T10:00:00.123456
*** SERVICE NAME:(SYS$USERS) 2026-03-31T10:00:00.123456
*** MODULE NAME:(SQL*Plus) 2026-03-31T10:00:00.123456
*** ACTION NAME:() 2026-03-31T10:00:00.123456
*** 2026-03-31T10:00:00.234567+08:00
Error 600 trapped in 2PC on line 1234 of file k2pc.c. Arguments: [17069] [0x7F8B5C000000] [] [] [] [] [] [] [] [] [] [] []
Current SQL statement for this session:
SELECT * FROM employees WHERE id = 123
# 3. 分析错误参数
# 错误代码：ORA-00600
# 错误参数：[17069], [0x7F8B5C000000]
# 错误位置：k2pc.c line 1234
# 4. 解决方案：查询Metalink
# 在Oracle支持网站查询ORA-00600 [17069]错误
# 5. 解决方案：检查数据完整性
SQL> analyze table employees validate structure cascade;
Table analyzed.
SQL> select * from user_tables where table_name = ‘EMPLOYEES’;
TABLE_NAME NUM_ROWS BLOCKS EMPTY_BLOCKS AVG_ROW_LEN
—————————— ———- —— ———— ———–
EMPLOYEES 100 10 0 50
# 6. 解决方案：重建表
SQL> create table employees_backup as select * from employees;
Table created.
SQL> drop table employees purge;
Table dropped.
SQL> rename employees_backup to employees;
Table renamed.
# 7. 验证问题解决
SQL> select * from employees where id = 123;
ID NAME EMAIL PHONE CREDIT_CARD SSN BALANCE
———- ———- ———————- ————— —————— ———- ———-
123 风哥1号 zhangsan@fgedu.net.cn 13800138000 1234567890123456 123456789 10000
# 8. 预防措施
# – 定期检查数据完整性
# – 定期备份数据
# – 监控ORA-00600错误
3.3.2 ORA-07445系统错误处理
SQL> select * from employees where id = 123;
select * from employees where id = 123
*
ERROR at line 1:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [__intel_fast_memset+0x5] [PC:0x7F8B5C000000] [ADDR:0x0] [UNABLE_TO_READ] []
# 分析步骤
# 1. 查看告警日志
$ grep “ORA-07445” /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/alert_FGEDUDB.log
2026-03-31T10:00:01.234567+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [__intel_fast_memset+0x5] [PC:0x7F8B5C000000] [ADDR:0x0] [UNABLE_TO_READ] []
# 2. 查看跟踪文件
$ tail -100 /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
*** 2026-03-31T10:00:01.234567+08:00
*** SESSION ID:(123.45678) 2026-03-31T10:00:01.234567
*** CLIENT ID:() 2026-03-31T10:00:01.234567
*** SERVICE NAME:(SYS$USERS) 2026-03-31T10:00:01.234567
*** MODULE NAME:(SQL*Plus) 2026-03-31T10:00:01.234567
*** ACTION NAME:() 2026-03-31T10:00:01.234567
*** 2026-03-31T10:00:01.345678+08:00
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0x0] [PC:0x7F8B5C000000, __intel_fast_memset+0x5]
Current SQL statement for this session:
SELECT * FROM employees WHERE id = 123
# 3. 分析错误参数
# 错误代码：ORA-07445
# 错误类型：ACCESS_VIOLATION
# 错误地址：0x0
# 错误位置：__intel_fast_memset+0x5
# 4. 解决方案：检查内存
$ free -m
total used free shared buff/cache available
Mem: 16384 8192 4096 512 4096 7168
Swap: 8192 512 7680
# 5. 解决方案：检查系统日志
$ dmesg | grep -i error
[12345.678901] oracle: page allocation failure: order:0, mode:0x4020
[12345.678902] CPU: 0 PID: 12345 Comm: oracle Tainted: P OE 4.19.0-6-amd64 #1 Debian 10
# 6. 解决方案：检查Oracle补丁
SQL> select * from dba_registry_history where action = ‘APPLY’ order by action_time desc;
ACTION_TIME ACTION NAMESPACE VERSION ID COMMENTS
——————– —— ——— ———- ———- ————————————————
31-MAR-26 09:00:00 APPLY SERVER 19.10.0.0.0 1 Patch 32126828 applied successfully
# 7. 解决方案：应用最新补丁
# 在Oracle支持网站下载最新补丁
# 应用补丁到数据库
# 8. 预防措施
# – 定期应用补丁
# – 监控系统资源
# – 监控ORA-07445错误
Part04-生产案例与实战讲解
4.1 ORA错误分析案例
在生产环境中分析ORA错误的完整案例：
4.1.1 场景描述
某企业生产数据库出现ORA-00600内部错误，需要分析错误原因并解决问题。
4.1.2 分析步骤
SQL> select * from v$session_wait where event like ‘%error%’;
SID SERIAL# EVENT WAIT_TIME SECONDS_IN_WAIT STATE P1TEXT P1 P2TEXT P2 P3TEXT P3
—— ———- ————————- ———- ————— ——– ———- — ———- — ———- —
123 45678 SQL*Net message from client 0 0 WAITING driver id 1413697536 #bytes 1
# 2. 查看告警日志
$ grep “ORA-00600” /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/alert_FGEDUDB.log | tail -20
2026-03-31T10:00:00.123456+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-00600: internal error code, arguments: [17069], [0x7F8B5C000000], [], [], [], [], [], [], [], [], [], []
2026-03-31T10:00:00.234567+08:00
Errors in file /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc:
ORA-00600: internal error code, arguments: [17069], [0x7F8B5C000000], [], [], [], [], [], [], [], [], [], []
# 3. 查看跟踪文件
$ tail -200 /oracle/app/oracle/diag/rdbms/fgedudb/FGEDUDB/trace/FGEDUDB_ora_12345.trc
*** 2026-03-31T10:00:00.123456+08:00
*** SESSION ID:(123.45678) 2026-03-31T10:00:00.123456
*** CLIENT ID:() 2026-03-31T10:00:00.123456
*** SERVICE NAME:(SYS$USERS) 2026-03-31T10:00:00.123456
*** MODULE NAME:(SQL*Plus) 2026-03-31T10:00:00.123456
*** ACTION NAME:() 2026-03-31T10:00:00.123456
*** 2026-03-31T10:00:00.234567+08:00
Error 600 trapped in 2PC on line 1234 of file k2pc.c. Arguments: [17069] [0x7F8B5C000000] [] [] [] [] [] [] [] [] [] [] []
Current SQL statement for this session:
SELECT * FROM employees WHERE id = 123
—– Call Stack Trace —–
ksedst()+30
ksedmp()+320
ksfdmp()+20
kgerinv()+68
kgeasnmierr()+188
k2pcglo()+1234
k2pcglo()+5678
k2pcglo()+9012
opiexe()+2345
opiall0()+1234
opikpr()+5678
opiodr()+9012
ttcpip()+2345
opitsk()+1234
opiino()+5678
opiodr()+9012
opidrv()+2345
sou2o()+1234
opimai_real()+5678
opimai()+9012
opiodr()+2345
opidrv()+1234
opipls()+5678
opipls()+9012
opidrv()+2345
opidrv()+1234
opidrv()+5678
opidrv()+9012
opimai_real()+2345
opimai()+1234
opimai()+5678
opimai()+9012
opidrv()+2345
opidrv()+1234
opidrv()+5678
opidrv()+9012
# 4. 分析错误原因
# 错误代码：ORA-00600
# 错误参数：[17069], [0x7F8B5C000000]
# 错误位置：k2pc.c line 1234
# 错误类型：2PC（两阶段提交）错误
# 5. 解决方案：查询Metalink
# 在Oracle支持网站查询ORA-00600 [17069]错误
# 找到相关文档：Doc ID 1234567.1
# 6. 解决方案：检查分布式事务
SQL> select * from dba_2pc_pending;
LOCAL_TRAN_ID GLOBAL_TRAN_ID STATE MIX HOST
—————- —————– ——– —— —————
123.45.678 123456.789.012 prepared N remote_host
# 7. 解决方案：回滚分布式事务
SQL> rollback force ‘123.45.678’;
Rollback complete.
# 8. 验证问题解决
SQL> select * from employees where id = 123;
ID NAME EMAIL PHONE CREDIT_CARD SSN BALANCE
———- ———- ———————- ————— —————— ———- ———-
123 风哥1号 zhangsan@fgedu.net.cn 13800138000 1234567890123456 123456789 10000
4.2 ORA错误故障处理
在ORA错误故障处理过程中的方法和技巧：
4.2.1 故障处理流程
# 1. 错误识别
# – 监控告警日志
# – 检查错误代码
# – 确认错误类型
# 2. 错误分析
# – 查看告警日志
# – 分析跟踪文件
# – 查询Metalink
# 3. 错误处理
# – 应用解决方案
# – 验证处理结果
# – 记录处理过程
# 4. 错误预防
# – 制定预防措施
# – 更新监控规则
# – 培训相关人员
# 示例：ORA-01578数据块损坏处理
# 1. 错误识别
SQL> select * from employees where id = 123;
select * from employees where id = 123
*
ERROR at line 1:
ORA-01578: ORACLE data block corrupted (file # 5, block # 12345)
# 2. 错误分析
SQL> select file_id, block_id, corrupted
from dba_extents
where file_id = 5 and block_id = 12345;
FILE_ID BLOCK_ID CORRUPTED
———- ———- ———-
5 12345 YES
# 3. 错误处理
SQL> begin
dbms_repair.admin_tables(
table_name => ‘REPAIR_TABLE’,
table_type => dbms_repair.repair_table,
action => dbms_repair.create_action
);
end;
/
PL/SQL procedure successfully completed.
SQL> declare
v_num_corrupt int;
begin
v_num_corrupt := 0;
dbms_repair.check_object(
schema_name => ‘HR’,
object_name => ‘EMPLOYEES’,
repair_table_name => ‘REPAIR_TABLE’,
corrupt_count => v_num_corrupt
);
dbms_output.put_line(‘Number of corrupt blocks: ‘ || v_num_corrupt);
end;
/
Number of corrupt blocks: 1
PL/SQL procedure successfully completed.
SQL> begin
dbms_repair.fix_corrupt_blocks(
schema_name => ‘HR’,
object_name => ‘EMPLOYEES’,
repair_table_name => ‘REPAIR_TABLE’
);
end;
/
PL/SQL procedure successfully completed.
# 4. 验证处理结果
SQL> select * from employees where id = 123;
ID NAME EMAIL PHONE CREDIT_CARD SSN BALANCE
———- ———- ———————- ————— —————— ———- ———-
123 风哥1号 zhangsan@fgedu.net.cn 13800138000 1234567890123456 123456789 10000
# 5. 错误预防
# – 定期检查数据完整性
# – 定期备份数据
# – 监控ORA-01578错误
4.3 ORA错误优化
优化ORA错误处理配置的最佳实践：
4.3.1 优化错误监控
SQL> create or replace procedure monitor_ora_errors as
v_alert_log_path varchar2(500);
v_error_count number;
v_error_message varchar2(4000);
begin
— 获取告警日志路径
select value into v_alert_log_path
from v$diag_info
where name = ‘Diag Alert’;
— 检查ORA-00600错误
select count(*) into v_error_count
from external_table_ora_errors
where error_code = ‘ORA-00600’
and error_time > sysdate – 1;
if v_error_count > 0 then
— 发送告警
v_error_message := ‘ORA-00600 errors detected in the last 24 hours: ‘ || v_error_count;
send_alert_email(v_error_message);
end if;
— 检查ORA-07445错误
select count(*) into v_error_count
from external_table_ora_errors
where error_code = ‘ORA-07445’
and error_time > sysdate – 1;
if v_error_count > 0 then
— 发送告警
v_error_message := ‘ORA-07445 errors detected in the last 24 hours: ‘ || v_error_count;
send_alert_email(v_error_message);
end if;
— 检查ORA-01578错误
select count(*) into v_error_count
from external_table_ora_errors
where error_code = ‘ORA-01578’
and error_time > sysdate – 1;
if v_error_count > 0 then
— 发送告警
v_error_message := ‘ORA-01578 errors detected in the last 24 hours: ‘ || v_error_count;
send_alert_email(v_error_message);
end if;
end monitor_ora_errors;
/
Procedure created.
# 2. 创建定时任务
SQL> begin
dbms_scheduler.create_job(
job_name => ‘MONITOR_ORA_ERRORS_JOB’,
job_type => ‘STORED_PROCEDURE’,
job_action => ‘MONITOR_ORA_ERRORS’,
start_date => systimestamp,
repeat_interval => ‘FREQ=HOURLY;INTERVAL=1’,
enabled => true
);
end;
/
PL/SQL procedure successfully completed.
# 3. 创建错误报告
SQL> create or replace procedure generate_ora_error_report as
v_report clob;
begin
— 生成错误报告
v_report := ‘ORA Error Report – ‘ || to_char(sysdate, ‘YYYY-MM-DD HH24:MI:SS’) || chr(10);
v_report := v_report || ‘========================================’ || chr(10);
for rec in (select error_code, count(*) as error_count
from external_table_ora_errors
where error_time > sysdate – 7
group by error_code
order by error_count desc) loop
v_report := v_report || rec.error_code || ‘: ‘ || rec.error_count || ‘ occurrences’ || chr(10);
end loop;
— 保存报告
insert into ora_error_reports (report_date, report_content)
values (sysdate, v_report);
commit;
end generate_ora_error_report;
/
Procedure created.
# 4. 创建定时任务
SQL> begin
dbms_scheduler.create_job(
job_name => ‘GENERATE_ORA_ERROR_REPORT_JOB’,
job_type => ‘STORED_PROCEDURE’,
job_action => ‘GENERATE_ORA_ERROR_REPORT’,
start_date => systimestamp,
repeat_interval => ‘FREQ=DAILY;INTERVAL=1’,
enabled => true
);
end;
/
PL/SQL procedure successfully completed.
Part05-风哥经验总结与分享
5.1 ORA错误分析总结
Oracle ORA错误分析是DBA必备技能，具有以下特点：
- 错误分类：多种错误类型
- 分析方法：多种分析方法
- 处理流程：标准处理流程
- 预防措施：制定预防措施
- 经验积累：积累处理经验
5.2 ORA错误分析检查清单
Oracle ORA错误分析检查清单：
- 错误识别：识别错误类型
- 错误分析：分析错误原因
- 错误处理：处理错误问题
- 错误验证：验证处理结果
- 错误预防：制定预防措施
- 错误记录：记录处理过程
5.3 ORA错误分析工具推荐
Oracle ORA错误分析工具推荐：
- SQL*Plus：命令行工具
- SQL Developer：图形化工具
- Enterprise Manager：企业级管理工具
- ADRCI：自动诊断仓库命令行工具
- ORAchk：Oracle健康检查工具
- TFA：故障收集器工具
- Metalink：Oracle支持网站
本文由风哥教程整理发布,仅用于学习测试使用,转载注明出处:http://www.fgedu.net.cn/10327.html
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