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- Know more about V$BACKUP_CORRUPTION
- library cache: mutex X等待事件, blocker session on cpu
- Oracle Database History
- 当DISK大于1T时，10.2.0.5 ASM错误的识别为4095T ON AIX
- Oracle OGG12.3(GoldenGate)发布了！支持DB 12c R2
- Oracle 11g Active DataGuard(ADG) 优化及 duplicate hang 诊断案例
- Oracle/PLSQL: Convert 函数
- Performance Tunning: cursor: mutex X & cursor: mutex S high wait in 12.2.0.1
- Oracle 2017改变：新补丁更新(RU和RUR)，新的版本(Release 18和19)
- Oracle 12.2.0.2/Oracle 18.1 新特性： Sequence SCALE EXTEND ?
- Oracle 12cR2新特性：Online Tablespace encryption (Transparent Data Encryption)
- Oracle 12c新特性：ORACLE自动维护的Schema或默认创建的USER
- ASM Disk Discovery 最佳实践
- Identifying Shared Memory Segments for multiple database(Disable AMM) 标识某实例的共享内存段ID
- Troubleshooting ORA-600 [H_MK_WRITING_CR_BG] 11.2.0.3 standby instance crash
- How to release still “killed“ status session in v$session? (释放killed的session) (三)
- Troubleshooting ORA-00600: [kcladdle_1], [], [] in RAC 11.2.0.3
- Troubleshooting ORA-00959: name is already used by an existing object 案例
- 一次存储链路抖动因I/O timeout不同在AIX和HPUX上的不同表现
- Oracle 补丁那些事儿(PS、PSU、CPU、SPU、BP、DBBP…)
- Oracle 12c RAC GI两大资源变化GIMR和ASM memory_target
- Oracle 12c R2新特性： Proxy PDB
- 安全扫描端口 8888风险 和ora.oc4j resource in ORACLE 11g r2
- ORACLE异机表空间基于时间点恢复 (TSPITR) Method(恢复部分表空间)
- ORACLE异机数据库基于时间点的恢复 (DBPITR) Method
- 注意： GoldenGate12.2不支持Oracle RDBMS 12.2 error OGG-06535
- Frequent generate a lot of cdmp* directories contain *bucket trace in bdump(二 ) root cause
- Oracle 12c R2 : lsnrctl status show EM Express & PDB GUID service (PDB GUID服务)
- Troubleshooting: 实例被驱逐和”IP packet reassembles failed“增长 on Linux 6.6
- Scripts: 如何取正在执行SQL的绑定变量值
- 自动化运维工具之：dcli 批量管理主机
- Oracle 12c R2 新特性: Per-PDB Character Sets （同一CDB中PDB可以使用不同的字符集）
- Troubleshooting ora-07445 [__lwp_kill()+48] [SIGIOT] error and instance crash
- Manually create physical standby DG ,Switchover, Convert to Logical standby(Scripts and Short Descriptions)
- Oracle 12c R2新特性: PDB级闪回（Flashback PDB）
- Oracle 12cR2新特性: move table online
- Oracle 12cR2新特性: 使用DBMS_TNS package 在数据库中tnsping
- Oracle 12c R2 注意事项：login.sql 改变
- 升级12C注意事项： 连接失败 ORA-28040
- Oracle 12c R2 新特性: Online PDB relocate (PDB hot move)
- Oracle 12c R2 新特性: PDB refresh
- oracle 12c new feature: Automatic Report Capturing Feature
- Materialized View Fast Refresh Is Slow, 10046 trace show HASH_SJ hint (物化视图因为hash_sj hint刷新性能差)
- Oracle 12c R2 New Feature: Hot Clone A PDB (12.2热克隆)
- Oracle 12c: index treedump
- Troubleshooting ORA-00600: [kpncxcc-1] from dblink & ORA-01801
- Troubleshooting ORA-00600: [krccaub_2], [9], [10] & instance crash in Oracle 10.2.0.4 RAC
- Oracle 12c New Feature: Listener注册进程LREG
- Oracle 12c New Feature: 临时表(global temporary tables) session专有的统计信息
- sqlplus login hang, syscal高, 频繁的实例重启 11.2.0.4 RAC on SunOS 5.10 (Solaris)
- Shell: To delete listener log file contains text and xml format (自动清理监听日志)
- Query V$SEGSTAT or V$SEGMENT_STATISTICS views slowly (慢)
- 2016个人年终总结
- 12C AWR show Tablespace And Datafiles Av Read (ms) high(高) BUG
- Autotask(Optimizer statistics gathering) not working in 11.2.0.4(未自动收集统计信息)
- sys临时修改其他未知用户密码 alter user identified by values ”
- 当C语言的程序处理 chr(0) or ‘\0’ 时的ORA-01008 Case
- Oracle 12c New Feature: Partition增强(四) multi-column list, auto-list ,interval subpartition, partition level readonly
- Oracle 12c New Feature: Partition增强(三)Partial Indexes(部分索引)
- Oracle 12c New Feature: Partition增强(二) online在线维护
- Oracle 12c New Feature: PARTITION 增强(一) 多分区维护
- Leap Second (闰秒) 在ORACLE环境的影响
- Oracle 12c new Feature: JSON Support in the Oracle 12c Database RDBMS(从此oracle rdbms支持JSON)
- Oracle 12c New Feature: Last Login Time for Non-Sys Users
- understand 11G clusterware logfile(保留策略及修改方式)
- The Agent orarootagent.bin process Memory Leak(内存溢出) case
- ORACLE 12.1 New Feature: Valid Time Temporal
- Debug oracle 常用的一些trace命令
- 关于oracle 安全的小知识dbms_ir , dbms_utility, bypass privileges via view
- ORA-00600: internal error code, arguments: [504] [row cache objects] on oracle 9i
- ora-01499 & ora-08103 caused by block corrupted or write loss a case
- Instance Crash in 11.2.0.3 RAC and ORA-600 [kcbo_switch_cq_1]
- Tuning ‘latch free’ & ‘null event’ wait event in Oracle 9i
- Crsd start fail and crsd.log show “Policy Engine is not initialized yet”& evmd.log show “[gipcretConnectionRefused] [29]”
- 11.2 impdp ORA-31693 ORA-29913 ORA-27163 when the table has xmltype column
- 11.2.0.3 CRS start slow and cssd.log show ‘Msg-reply has soap fault 10’ 案例
- Performance Tunning: enq: JI – contention
- Troubleshooting: ORA-00600: [kkpo_rcinfo_defstg:delseg], [xxxx] & ora-600 [25027] & ora-600 [ktadrprc-1]
- Oracle 12.2.0.1 SQL HINT
- Oracle 12C new feature: more detail from scheduler job view
- 12C R2 new feature: 128 bytes for identifiers (表名长度可用128字节)
- Lots of Long transaction caused by database link, and undo hdr show DBA for that slot is 0x00000000
- DBVerify report Corrupt block “Completely zero block found during dbv” when use RAW Device, but rman not.
- DBV not always correct, as in an extreme case the use of raw device
- Scripts: format Library Cache Lock/pin wait event p3 value
- OGG 12.2 extract not moving when redo log files are placed on RAW device AIX (解决办法)
- GOLDENGATE 12.2 Undocumented parameters(隐藏参数)
- EM agent 12.1 割接主机后重部署 agent is blocked, and “out-of-sync with repository”
- Oracle GoldenGate 12.2 For Oracle New Feature: 集成的datapump internal
- goldengate 12.2 install and upgrade using Opatch
- Oracle 11g r2 clusterware(集群软件) 启动顺序 （视频动画)
- 三言两语Database 360 (DB360)
- Little about partition segment
- Using ‘opatch lsinventory’ show patched is real? （看到的补丁信息真的靠谱么？）
- ora-600 [ktbdchk1: bad dscn] and ora-8103 corrupted block
- Troubleshooting ORA-07445 [intel_fast_memcpy.A()+18]
- Script: AWR snap sessions,load profile, SCN or Transactions per second
- latch: undo global data(ktudba: KSLBEGIN) wait event when insert value
- ORA-00600 [ddfnetCFull-4], [Invalid Handle] when using shared dblink oracle 11.2.0.3
- Estimate of the duration of a rollback operation(估算rollback事务回滚剩余时间)
- ORA-32701 error in alert.log M000 hang event ‘not in wait’ during flush AWR
- The Oracle Listener ofen restart and ora.net1.network check fails on HPUX (监听频繁重启)
- Build the BBED utility in ORACLE 11G on linux
- Troubleshooting ORA-600 [kghstack_alloc] & ORA-600 [kponPurgeUnreachLoc-3]
- Oracle 12c new Feature: pingtarget 小记
- Tuning “DFS lock handle” wait event
- ORA-01089 select fail over database link on RAC ADG Standby
- Frequent generate a lot of cdmp* directories contain *bucket trace in bdump
- Troubleshooting ora-12519 or ora-12516 ,listener service ‘blocked’, and wait event ‘latch: ges resource hash
- Oracle 12cR1, Shutdown abort of a PDB seems to perform commit ，a bug?
- ‘latch: cache buffers chains’ & Don’t underestimate the rownum = 1
- Corrupted free block & ORA-19566 when using rman backup after restore DB
- ORA-31693&ORA-31640&ORA-19505 and ORA-39126&ORA-01555&ORA-22924 when impdp 11g rac using parallel
- RMAN-06900&RMAN-06901 RMAN-00600 [3045] ORA-19921 when rman connect target
- Listener no register service& INTERMEDIATE status with “Not All Endpoints Registered” in 11gR2 RAC
- How to list all db links in oracle DB to generate a flat file? (生成dblink列表文件)
- Troubleshooting ORA-12012&ORA-29283&ORA-06512 issue
- Invalid segment BIN$xxx and dba_recyclebin was empty (回收站空，释放无效的BIN$xx空间)
- Fixed OSWatcher v7.3.3 some problems on HPUX ia 11-31 platform
- Performance tuning ‘gc cr¤t grant 2-way’ event (当主机扩容cpu后)
- Acquiring Management Agent Software for HPUX&AIX in the Offline Mode(离线安装EM agent)
- Troubleshooting TNS-12547&TNS-12560 AIX error 32: Broken pipe caused by tcp socket leak
- Troubleshooting the crsd.bin and listener process terminal after eanble TCP.VALIDNODE_CHECKING in sqlnet.ora
- kjfspseudorcfg and kjxgrrcfgchk some reason #
- Index partition unusable and wait ‘kpodplck wait before retrying ORA-54’ event during direct sqlldr
- How to find out who caused the database user locked（ora-1017 or ORA-28000）(捕捉登录失败)
- Online Redefinition Partition Existing Table, ora-600 [kkzuord_copycolcomcb.2.exec] and ORA-23539
- 诊断一起存储链路引起的数据库性能问题案例 ORA-32701 and krsv_proc_kill: Killing 1 processes (Process by index) in alert
- ORACLE 角色与权限管理
- oracle 也可以像sql server 一样不用to_date()做时间比较
- Index join SQL性能故障 之 通过恢复统计信息还原SQL问题
- Index join SQL性能故障 之 disable index_join 使用sql profile hint, parameter 和sql patch
- Tuning: Temporary table don’t collect statistics (临时表不要收集统计信息)
- Tuning: latch: cache buffers chains 又一案例
- Troubleshooting RMAN-00600: internal error, arguments [13205] [] [] [] []
- The “abnormal” table column , Function index ，VIRTUAL column，unused column （说说那些sys_开头的列名)
- After remote_listener change to null, frequently getting message ‘* service_update * ‘ in listener.log, pmon spin
- Warning ! RAC Listener offline& VIP failover when dynamically adding disks using udev after executing
- ORA-04063: package body “SYS.DBMS_SQLTUNE_INTERNAL” and compile body raise ORA-00904: “XMLAGG”
- 2014年终总结
- Performance Tuning DML hang wait event ‘cursor: pin S wait on X’
- Opatch auto PSU for RAC on hpux ia
- 数据去哪了？现实版 （partition data invalid）
- 如果listener.log 不可写会怎样？ DBGRL Error: SLERC_OERC, 48180
- How to estimate the cost if partition table missing partition level statistics ?（缺失分区表级统计信息如何计算多分区扫描的COST）
- How to release still “killed“ status session in v$session?(释放killed的session)
- How to release still “killed“ status session in v$session? (释放killed的session) (二)
- Troubleshooting Instance crash when modify db_cache_size, ora-600 [kmgs_pre_process_request_6]
- After OS reboot, Ohasd(cssd) start fail is due to OLR corrupted
- Troubleshooting ora-7445 [kkqteParseSqlForPG()+1840] in 11g r2, Table expansion transformation
- Troubleshooting Instance crash after ora-7445[opiaba],ora-600 [kgh_heap_sizes:ds], ora-600 [17147]
- Performance tuning ‘wait for a undo record’ event
- The FG(server process) and remote node LMSn process communication over the interconnect?(用户进程会和另一节点的LMS进程直接通信么?)
- Troubleshooting ORA-600 [k2srec: should be another instance]
- Troubleshooting these are too many scheduler jobs(owner sys) name like KWQICPOSTMSGDEL_nn in DB 11g
- Troubleshooting ORA 600 [ktspfmdb:objdchk_kcbnew_3] 案例
- Sessions remains and increase cumulatively never close if you use DEDICATED with XA transaction + shared dblink.
- Why do drop tablespace completes the space is not available as free yet in ASM Diskgroup?（删除tablesapce后, ASM空闲空间没变）
- How to restore database only have previous datafile and archive log Rman backupset？(只有数据文件和归档日志备份集的恢复)
- Installing Enterprise Manager Cloud Control 12c release2 on Linux(安装em12c)
- Installing Enterprise Manager Cloud Control 12c r2 Agent on Linux(安装em12c agent)
- RHEL(Red Hat) 5/OL (Oracle Linux) 5 is not supported for 12.2，INS-30131 when install oracle DB 12C R2 on OEL5
- oracle 12c Database Architecture (CDB、PDB)
- oracle 12c new feature: moving online datafiles(在线移动数据文件)
- Oracle 12c new feature:OFFSET n FETCH n row-limit
- oracle 12c new feature 隐藏列(invisible columns)
- Install Oracle 12c on Windows [INS-30131] Failed to access the temporary location(无法访问临时位置)
- oracle 12c new feature: RESOURCE role without unlimited tablespace
- Where is stored Initialization Parameter(spfile) for PDB in Oracle 12c (PDB参数文件存在哪里)
- 2015年个人年终总结
- Run root102.sh Node reboot when install10205 CRS PATCH & OUI-10021 & Oracle CRS stack is already configured
- ORA-20011 ORA-12801 ORA-01722 when gather table statistics
- ora-7445 [LpxFSMSaxSE()+449] [SIGSEGV] when query with xmltype
- Troubleshooting ora-600 [17114] Trace file show current SQL selecting v$session
- How to force a hint without touch sql text? 手动SQL Profile固定执行计划
- troubleshooting ORA-600[6302] & ORA-600 [6200] corrupted index block
- Performance tuning library cache lock & single-task message
- ORA-08104 when online index rebuild
- Troubleshooting ORA-07445 [skgxpdmpmem()+22096]
- Troubleshooting ORA-00600 internal error [6704], [2], [1405099], [953234]
- Shell: extract more from listener.log(分析监听日志)
- hpux psu 10.2.0.4.12 遇到的一些小问题
- Unable execute “@”(at) sql file in sqlplus on hp-ux issue
- Troubleshooting ORA-31693 ORA-31617 ORA-19505 ORA-27037 when expdp with parallel on RAC 11G
- Troubleshooting ora-600 [18194] and ora-600 [1265] error
- Troubleshooting Instance crash when modify db_cache_size, ora-600 [kmgs_pre_process_request_6]
- Troubleshooting One RAC node reboot with ora-600 [kjdrisRMnovalid:msgRMno]
- Troubleshooting ora-07445 [smboCkaGetPivot]
- ASM DISKGROUP Migrate to Anotherr SAN (迁移ASM到新存储)
- Troubleshooting RAC intrance crash caused by private network IP address conflict (IP冲突)
- Troubleshoot ORA-27544,ORA-27300,ORA-27301,ORA-27302,”HPUX-ia64 Error: 23: File table overflow” issue
- Tuning “transaction” & TX lock wait event ,speeding up rollback dead transaction
- Troubleshoot oracle job is not run automatically(不自动执行原因)
- ORA-01135 ORA-01110 check offline tablespace in alert.log
- Troubleshooting ORA-01031: Insufficient Privileges issue
- IMPDP hangs, session wait “wait for unread message on broadcast channel”
- Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(二)
- Duplicate (Clone) Oracle Database to the Same Machine (同一机器数据库还原)(一)
- Oradebug Security
- Exp-00003 no storage definition found issue in oracle 11g (未找到段 (0,0) 的存储定义)
- How to drop ASM DiskGroup in RAC? (DISKGROUP删除后db资源显示OFFLINE)
- Add ORACLE Listener Fail or ORA-125XX, Don’t forget “Run as Administrator”(以管理员身份运行) on windows7/8
- The filter pushed in subquery issue in oracle 11G (filter推进子查询)
- Export terminates with ORA-00600 [ksuloget2]
- The segment header block corrupted cause ORA-08103 issue (段头坏块导致ora-8103)
- Recover from rm -rf deleted datafile in NOARCHIVELOG mode using BBED
- oracle 12c new feature: In-memory option VS in memory standard row-major
- ORA-07445 [ACCESS_VIOLATION] [unable_to_trans_pc] [UNABLE_TO_READ] Troubleshooting
- ORA-600 [kdBlkCheckError][X],[X],[38504] and ORA-600[4194],[],[] in 11.2.0.4
- Inserting no value for the column NOT NULL and no explicit DEFAULT clause refused , After upgrade MySQL5.6 default
- orphaned processes not cleanup when using resource limit(profile) in 9i RAC, cause skgpspawn failed(进程不回收)
- Query fail with Ora-600 [kdsgrp1] ora-600 [qertbFetchByRowID] Troubleshooting
- DataPump Export (EXPDP) Error ORA-39095 Dump File Space Has Been Exhausted Possible solution
- ORA-00600: internal error code [kkmupsViewDestFro_4] in oracle 11.2.0.1
- GOLDENGATE FILTER row data with Operation-System environment variable(通过操作系统环境变量Filter数据)
- Tuning “enq:TX – row lock contention” events
- Some interesting about oracle, did you know? (一)
- ora-942 or ora-1775 or PLS-00201 When using a database link in a stored procedure
- SQL join problem caused by Low cardinality with Histogram(柱状图产生的过低Card.导致表join性能问题)(二)
- SQL join problem caused by Low cardinality with Histogram(柱状图产生的过低Card.导致表join性能问题)(一)
- What is GridFS?
- How to put username &password in MongoDB(Security&Authentication)?(配置用户认证在MongoDB)
- US7ASCII DMP 导入 ZHS16GBK DB 一方案
- SQL hint mean force? More about parallel(二)(不并行的场景)
- Backup\Restore MongoDB using mongoexport, mongoimport, mongodump, mongorestore(MongoDB备份恢复)
- How to use the MegaCLI Utility with your RAID Controller on your DELL PowerEdge Server in Linux. (在linux监控RAID信息)
- oracle ORA_ROWSCN 行记录的更新时间
- SCN fast increase by database link(scn增长因DB_LINK)
- Script: Who’s using a database link?(找出谁在使用dblink)
- How to install MongoDB 2.6 on linux
- Script: Oracle Table/Tablespace Growth Prediction(预测表/表空间增长)
- ORACLE data block corrupted ORA-01578&ORA-01110, Rman backup fails with ORA-19566 error.
- ORA-00600: internal error code, arguments: [Skgmfail] 案例
- To add datafiles in ASM hit ORA-01119 ORA-17502 ORA-15041 after add new ASMDISKs to ASMDISKGROUP
- Drop temp tablespace command hang in oracle 11g R2
- How to duplicate or multiplex control files on ASM ?(复制控制文件)
- Shell script to backup MySQL database(备份MySQL 脚本)
- oracle10G 加密解密之dbms_crypto (二)
- oracle10G 加密解密之dbms_crypto (一)
- Oracle 7到12c 数据库升级路线图
- RedHat(RHEL)6 support ASMLIB (RHEL6支持asmlib)
- PLS-00382: expression is of wrong type When using “execute immediate” dynamic SQL statement
- Memory Notification: Heap size nnnnK exceeds notification threshold (51200K)
- Exp Error exp-56 ORA-24324 and ora-7445 in alert When shared pool is very small
- How to setup Mysql Replication Master-Slave ?(MySQL主从复制)
- Script: 查看datafile 的HWM,估算resize 最小size
- Script: oracle 判断字符是否是日期格式
- Script: sql 金额数字转换大写(1to壹)
- Script: oracle procedure error 生成txt日志文件
- Script: tom’s printtab code你值得拥有
- Script: Procedure 启用/禁用表上全部外键
- Script: oracle 删除用户(schema)下的所有对象
- Script: 通过AWR信息查询db 中segments 的增长信息
- Script: TOP logical read within a specific time period(指定时间逻辑读最多的对象)
- Script:List all SQL in the library cache cursor referencing a given table .(列出指定表上所有相关SQL)
- about get bind_data column in v$sql(绑定变量值)
- MySql 5.5 tar安装及sysbench 配置
- script:purge ADR file
- SHELL:Find Memory Usage In Linux (统计每个程序内存使用情况)
- Recovery Loss Of Datafile For Which No Backup Is Available(恢复没有备份的数据文件)
- 11G ADG automatic repair corrupt data blocks(ABMR自动坏块修复)测试二
- 11G ADG automatic repair corrupt data blocks(ABMR自动坏块修复)测试一
- ORA-12592: TNS:bad packet issue on Dataguard primary site
- AWR Formatter (一个不错的AWR报告格式化google chrome 插件)
- Resize datafile hit ORA-01237 ORA-27059 OSD-04005 O/S-Error: (OS 665) on windows 2008
- CRS-4124 CRS-4000 Oracle HAS startup failed after reboot server (RHEL6)
- How to used the gdb (GNU Debugger) Collecting Hanganalyze and Systemstate Dumps on Linux systems(操作系统收集hanganalyze和systemstate)
- More about dead transactions recovery and cleanup(死事务的回滚清理)
- 2013辞旧迎新2014
- ORA-10631: SHRINK clause should not be specified for this object(原因)
- ORA-00600: INTERNAL ERROR CODE, ARGUMENTS: [VOPRVL1], [], [], [], [], [], [], [] Issues
- Script:oracle拆分逗号分隔字符串 实现split
- ora-600 [2663]/[2662] internal error issue
- ORA-00600 [kghfrempty:ds] internal error issue
- ORA-600 [25016] internal error when ALTER DATABASE OPEN ORA-01092
- ORA-00600 [keltnfy-ldmInit] internal error issue
- ora-600 [3708] [910] internal error issue
- ora-600 [kcbgcur_9] internal error when ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
- ORA-00600 [qkssao2s1] internal error issue
- How to enable SQL*Net Tracing with Oracle Instant Client (二)
- ORA-28002 Even If Default Prpfile PASSWORD_LIFE_TIME Has UNLIMITED Limit(用户profile密码生命周期无限制,密码仍然过期锁定的情形)
- How to avoid “ORA-00932: inconsistent datatypes: expected – got CLOB” when distinct CLOB datatypes.
- skgpspawn failed:category = 27143 in alert log
- How to add primary key on existing data of table(ORA-02437)(给已存在数据表增加主键)
- Adaptive Cursor Sharing in 11R2 performance issues(自适应游标共享问题案例)
- Adaptive Log File Sync In 11gr2 (_use_adaptive_log_file_sync)
- How to enable SQL*Net Tracing with Oracle Instant Client 11G
- How to get call stack of oracle processes ?
- Script: Display the sessions distribution and top 50 idle sessions
- I prefer the version 11.2.0.3 parse_calls (我比较喜欢parse_calls在11203版本上的显示)
- Logon Storms on 11g ,audit maybe cause performance issue.(当创建很多连接时审计可能带来性能问题)
- jboss 占用高cpu 的诊断思路
- How do you know empty block? dump block
- scn format (scn格式)
- Logon Storm and Memory shortage issue ORA-07445 dbgtrReserveSpace (记录一次登录风暴致内存不足的问题)
- Unable to change MEMORY_MAX_TARGET (无法修改MEMORY_MAX_TARGET)
- SQL Test Case Builder generate test case automatically(自动生成SQL所需测试数据)
- ORA-00313,ORA-00312,ORA-27037,ORA-19527 DATAGARD 11G r2
- Send email using utl_smtp in Oracle 11g (results in ORA-24247)(11g ACL 网络访问控制列表)
- OGG-01028 Oracle GoldenGate Capture for Oracle,Table compression is not supported
- How to imp job to another schema in same db(同一数据库导入JOB到另外一用户)
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