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'); --Get a DML statement that reverses the transaction based on the transaction number operation Undo_sql----------------------------------------------------------------------- -------------------Update Update "flasher". " TB2 "Set" SAL "= ' n ' where ROWID = ' Aaanupaagaaaaakaan '; [emailprotected]> SELect Operation,undo_sql from Flashback_transaction_query 2 where Xid=hextoraw (' 08000400c9010000 '); --Get a DML statement that reverses the transaction based on the transaction number operatio

Tags: oracle 11g OCP test Bank Analysis certification Exam TU Institute Oracle Oracle OCP Certification ExamQUESTION 4In which of the scenario would the DBA perform recovery? (Choose all, apply.)A. The alert log file is corruptedB. A Tablespace is accidentally droppedC. One of the redo log members is corruptedD. A database user terminates the session abnormallyE.

Oracle New Feature 4-maintenance, upgrade, recovery and Data Pump 1. Contents 1) enhanced table partition maintenance. 2) Database Upgrade and improvement. 3) Restore/restore data files across networks. 4) Data Pump enhancement. 5) Real-time ADDM. 6) collect concurrent statistics. 2. Enhanced table partition Maintenance In other articles, I have explained how to

Tags: configure RTU Note Way ora Oracle database password local SYS4.oracle database Start-up processWindows operating systemStart monitoring: Lsnrctl start;Start DB instance: oradim-startup-sid Instance NameLinux SystemsStart monitoring: Lsnrctl start;Launch DB instance: Sqlplus Sys/change_on_install as SysdbaStartup5.oracle Login Authentication MethodUnder Wind

Oracle memory management (Part 4) [In-depth analysis-eygle] Study Notes1.3 SGA Management SGA refers to the System Global Area. It is a memory Area used to load data, objects, and save running status and Database Control information. It is allocated when the database instance is started, when the instance is released, each instance has its own SGA zone. In chapter I, I used? When the database is started to

Today, after repeated tests, the RAC was successfully configured. Now, the detailed operation steps are posted for your reference, we hope that we can avoid unnecessary detours when we are confused about RAC configurations. We also hope that our friends will find many shortcomings and make common progress. 1. Environment: Vmware server 1.7, ORALCE 10 Gb, system platform is Red Hat 4 Enterprise Edition, based on RAW device RAC, disk array is replaced b

There are a lot of friends who are confused about the 4 IPs when configuring Oracle 11GR2 RAC, this article explains here.Open a/etc/hosts file for a RAC nodeCat/etc/hosts# public IP192.168.1.138rac1.localdomain Rac1192.168.1.139rac2.localdomain RAC2#Private IP172.16.10.138rac1-priv.localdomain Rac1-priv172.16.10.139rac2-priv.localdomain Rac2-priv#Virtual IP192.168.1.140 Rac1-vip.localdomain RAC1-VIP192.168

statement has. 9:PL the DDL language in SQLPrecede the EXECUTE statement with execute immediate, and the CREATE statement is enclosed in single quotation marks, if there is a single quotation mark inside the single quotation mark,Then use double quotation marks instead of single quotes.BeginExecute immediate ' CREATE TABLE T (ID number (4), name varchar () not null) ';End 10:PL branch structure in SQL if elsif else DeclareV_sal Emp.sal%type;BeginSel

(data.amount),'.')+1=length(data.amount)then data.amount||'0' else to_char(round(data.amount,2)) endasamount_format Method 3: You can use the parameter settings provided by Oracle, that is columnamountformatl9999999999.99 The disadvantage of this method is that the number of 9 decimal points on the left of Oracle in the format must be known. Otherwise, the number exceeding the number

Note:1. When Oracle8.1.6 is installed in WIN2000 to create a database, a credential retrieval failure error often occurs. This is because Oracle cannot apply OS authentication results. You can modify sqlnet. AUTHENTICATION _ SERVICES in SQLNET. ora to NONE. In this case, Oracle uses Password File authentication.2. Since Oracle has several pre-built users, it is b

; = 11; 10 rows have been selected. Execution Plan----------------------------------------------------------0 SELECT statement optimizer = choose (cost = 43 card = 20 bytes = 1840)1 0 view (cost = 43 card = 20 bytes = 1840)2 1 count (stopkey)3 2 view (cost = 43 card = 6361 bytes = 502519)4 3 sort (order by stopkey) (cost = 43 card = 6361 bytes = 133581)5 4 Table Access (full) of 'T' (cost = 9 card = 636

Oracle memory-Spur (4) if you start an automatically managed pga, You need to configure two parameters: pga_aggregate_target and workarea_size_policy. I learned these parameters before, however, when creating a new database, you can set the pga_aggregate_target parameter through the steps recommended by oracle. However, after a period of operation, we still need

->querystart = 0;}Run it and do a few queries.# dtrace-s STATEMENT.D Query rowsu rowsm Dur (ms) SELECT @ @version_comment limit 1 0 1 0SELECT DATABASE () 0 1 0show databases 0 6 0show tables 0 2 0select * from foo

4 states of the constraint: Disable novalidate will neither constrain new data nor validate existing data, equivalent to disable Enable novalidate constraint new data but does not validate existing data Disable validate constraint new data but does not validate existing data, disable DML when enabled Enable validate constrains new data and verifies existing data, equivalent to enable Extended Explanation: Disable/enable for new data (for uniqueness c

The Securefile feature is a fully redesigned implementation of the large object (LOB) storage format in Oracle 11g, the original LOB storage format now known as Basixfile, which is still the default storage method, but the Securfile keyword opens a new storage method, It allows encryption, use of compression to save space and data de-duplication. 　　Initialization parameters The Securefile feature is available when the initialization parameter compati

"; REMif the object in the first parenthesis is a file name, enclose it in double quotes . REMTokens=1-3 "for the 1 to 3 columns, behind the suspect is%%a, how can it be%%b?" for/F "Usebackq delims==. Tokens=1-3 "%%a in ('SetOra[%%i] ') Do SetOra_cur=%%bSetora[%%i]=REM\ \ means escaped/ Echo!ora_cur!| Findstr "\" >nul 2>nul Echo!ora_cur!| Findstr "@" >nul 2>nul (Set/A J+=1SetOra[!j!] =!ora_cur! ) ) ) Wrote a lot of notes in order to understand Bat

Label:This article is mainly a summary of the problem, will be updated continuously.1. When executing environment *env = Environment::createenvironment (), throws an exception, the code is ORA-32104, but there is no error messageThe reason is to use the library and mismatch, such as I used 11 of the library, the environment is 10g, so the F:\PProject\oci\32\instantclient-basic-nt-11.2.0.4.0\instantclient_11_ 2 Add to the environment variable path, and before the path of 10g.The other is to use

Label: 1 CREATE OR REPLACE FUNCTIONTo_time (secinch Number)RETURN VARCHAR2 is 2 /*Turn the seconds into a time and minute format3 Auth Lzpong 201/09/164 */ 5 BEGIN 6 RETURNTRUNC (NVL (sec,0)/3600)||':'||SUBSTR (Numtodsinterval (NVL (sec,0),'Second'), the,5); 7EXCEPTION whenOTHERS Then RETURN '0:00:00'; 8 ENDTo_time;9 Ten One CREATE OR REPLACE FUNCTION IsNumeric(Str inch VARCHAR2)RETURN Number is A /*detects whether a string is a digital null:-1; notnumeric:0; isnumeric:1 - */ -V_strFL

Football and oracle series (4): from Brazil to Germany, think of the different RAC topology comparison !, OracleracFootball and oracle series (4): from Brazil to Germany, think of the different RAC topology comparison! Preliminary review: I was going to say that tonight, I thought it would be the second semi-finals th

Four steps to quickly start the oracle bbed environment: ora10g RHEL5.8 Introduction: bbed is called data block browsing and editing. Deep Learning of oracle block and disaster recovery in special circumstances.1 Compilation connection: cd $ ORACLE_HOME/rdbms/libmake-f ins_rdbms.mk $ ORACLE_HOME/rdbms/lib/bbed www.2cto.com 2 migration execution file: cp $ ORACLE_HOME/rdbms/lib/bbed $ ORACLE_HOME/bin 3 confi