All operations here must be performed on the database's machine. Log On with the Sys user and set the archive process to close.
Alter system set log_archive_start = false scope = spfile;Close the database.
Shutdown immediateThen, start the
Using the Bind Variable can reduce SQL parse, but using the Bind Variable has a bad point:
Incorrect execution plan may be used for a column with skew. Before Oracle 9i, if the where condition contains all
When binding variables, you can only
Except is null and is not null, any operation on null is null;In Oracle, pay attention to the null and or operations.And Operation: null and true = NULL, null and false = false, null and null = NULLOr: null or true = true null or false = false, null
Table space quota Overview
OracleThe official website defines quota as follows: a limit on a resource, such as a limit on the amountDatabase storage used by a database user. A database administrator canSet tablespace quotas for each Oracle
Some of them are transferred from other places.
Select User from dual to view the User Name of the current connection
ORA-24338: unexecuted statement handleThis problem mainly occurs when the database cursor is used. This error is reported when
It is not that easy to make a qualified oracledba. It is quite difficult to distinguish the Problem and Its Solution correctly.
According to the data provided by the customer, it may be helpful, but after analysis by the DBA, it is confirmed that
In the previous article Oracle9i database connection access solution, I wrote a permission issue about ASP. Net Access to Oracle9i database. Error message: Unable to load DLL (OCI. dll) or unable to find Oracle client and network components
Today,
Oracle's new bi application keeps an eye on SAP customers' [it168 information] as a long-term competitor of SAP. Oracle wants to use a Bi (Business Intelligence) software package that can analyze sap erp financial data to snatch sap's customers.
How to query duplicate data and delete duplicate records in Oracle
For example, there is a personnel table (table name: peosons)
If you want to query records whose names, ID card numbers, and addresses are identical
Select P1 .*
From Persons
Data conversion and transmission between Oracle EBS modules and between the local and local systems are completed through the interface table. data convertion is required before the Oracle EBS is launched, compared with conventional APIs and
Some operations in the previously installed default orcl database basically meet the general requirements. The following are detailed steps> 1. Create a tablespace Create tablespace name: datafile path and tablespace name. DBF & quot; 'C: \ oracle
About the operation of transactionscope distributed transactions in Oracle
. The transactionscope distributed transactions under net 2.0 have been well used in the project (SQL Server). Recently, due to the Database Change to Oracle 10 Gb, a
--
----------- Common dynamic performance view -------------------
--
V $ option: displays installed Oracle options
Select
*
From
V $
Option
; --Obtain detailed information about the Oracle version.Select * FromV $
OracleIt takes four States to start,Shutdown,Nomount,Mount,Open,
Shutdown status
The first State has nothing to explain,OracleAll files are quietly lying in the disk, and everything has not started yet. It is in the shutdown
The basic environment after Oracle Installation mainly involvesProgramGroups, physical files contained in DBMS, services related to database servers, Oracle default account/password, and commands that can be used in the MS-DOS command line.
In the process of app development, some data access frequency is very high, but the data does not change much. We usually let it reside in the memory to improve access performance, but this mechanism has a problem, that is how to monitor data
The listener. ora and tnsnames. ora files are often difficult to use due to format issues. I have configured and kept a backup, and I will copy it and modify it later! Hey ~~~ Because Linux is usually used in many cases, sometimes you may encounter
Part 4: Performance adjustment [Q] If Automatic Tracking is set [a] Log On With System run $ ORACLE_HOME/rdbms/admin/utlxplan. SQL create a schedule run $ ORACLE_HOME/sqlplus/admin/plustrce. SQL creates a plustrace role if you want to use a
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