Oracle

The following error occurs when I open the database today and want to modify the archive mode of oracle: SQL> alter database archivelog;Alter database archivelog  *ERROR at line 1:ORA-00265: instance recovery required, cannot set ARCHIVELOG mode I

This problem occurs after the database is installed today. I searched the internet and found many posts to solve this problem,SQL> startupORA-01078: failure in processing system parametersLRM-00109: cocould not open parameter file

First, using sqlplus to manage databases is the highest level ~ It is also helpful for us to understand oracle. We should not rely too much on third-party development tools, such as plsqldeveloper. These tools are used for Development kits, stored

Here is the Oracle copy from a brother. Thank you!Java code1. query constraints in the data dictionary:SELECT constraint_name, constraint_type, search_conditionFROM user_constraints WHERE table_name = 'ployees ';// The table names here are all

1. Stop all ORACLE-related services.2. Use OUI (Oracle Universal Installer) to uninstall Oracle software."START"-> "Program"-> "Oracle-OraDb110g_home1 | Oracle installation product | Universal installer.3. Delete the Registry content.　Run the

Log on as an administrator:1. First, create (new) Users:Create user username identified by password;Username: username of The New User NamePassword: password of the new userYou can also use the previous user instead of creating a new user. For

  My friend built an index on a million table and it didn't end in half an hour. So we will discuss how to speed up.   I. First, let's take a look at the operations to create an index: 1. Read the data of the index key to the memory. ==> If data is

  DATE data type 　　 We are very familiar with this data type. We will always think of the date type when we need to represent the date and time. It can store months, years, days, centuries, hours, minutes, and seconds. It is typically used to

  The installation of ORACLE10G in red hat 5.4 is finally successful. ORACLE in WINDOWS is a little different from ORACLE in LINUX. It can be seen from a simple installation. When installing ORACLE in LINUX, you must first install the auxiliary

  1 Definition Audit_sys_operations audits SYSDBA activities. The default value is false. The related audit information is not recorded in aud $, because it is possible that the database has not been started yet and can only be recorded in files at

  REDO Oracle maintains two types of redo log files: online redo log files and archived redo log files. Online redo logs are used to "correct" data files in the case of power failure (instance termination), while archived redo logs are used to

  ORACLE Database monitoring fails to report an error, which is quickly solved. Record the problems here for future reference. Should I enter the IP address or HOST name after the HOST in the listener. ora file of the database? Many may have

  -- Create a test table name Create table job_table (run_date date ); -- Create a stored procedure Create or replace procedure job_proc Begin Insert into job_table (run_date) values (sysdate ); End;   -- Create a job and run it once every

  An error is reported in the background of the application server today: Java. SQL. SQLException: ORA-01114: IO error when writing blocks to file 201 (block #1015305) ORA-27069: skgfdisp: Try to execute I/O out of file range OSD-04026: The passed

  Oracle 10g installation in win7, select advanced options, prompt program abnormal termination, an unknown error occurs     Modify Oracle 10G \ database \ stage \ prereq \ db \ refhost. xml   In the             Go to the install directory and

  Oracle 10 Gb provides a new performance collection and analysis tool awr (automaticworkload repository ). Awr exists in the sysaux tablespace and is one of the main users of sysaux. Snapshot, a set of performance statistics captured at a specific

Error resolution -- ORA-01791 in oracle: not SELECTed expression error Oracle database, an error occurred while executing the following statement: ORA-01791: not SELECTed expression ": Select distinct t. name from auth_employee t order by t.

Oracle FAQ (1)01. How can I view oracle version information?02. How can I view the transaction information locked by the system?03. How to obtain which users are using the database?04. What is the maximum number of fields in the data table?The

Flash plus query, flash back version query, flash back transaction query 1. flash back query: the process is to record the current SCN and time, then perform DML operations, submit and use timestamp and SCN to query the data before DML operations

A ORA-00471 Processing Method of a new service to the machine room, hardware is IBM X3850 X5, hardware configuration is good, memory has 128 GB. SA has installed the system (sule 32bit) and notifies me to install the database. Busy for half a day.