Oracle System RequirementsEnterprise Edition: Minimum cpu pentium 200 M recommended PENTIUMIII 1g or aboveMinimum Memory 128 M recommended 512 MHard Disk Space System Disk 140 M mounting disk 4.5G (FAT32) or 2.75G (NTFS)Standard Edition: Minimum cpu pentium 200 M recommended PENTIUMIII 866 or aboveMinimum Memory 128 M recommended 256 MHard Disk Space System Disk 140 M mounting disk 4.5G (FAT32) or 2.5G (NTFS)Personal Edition: Minimum cpu pentium 200 M
redo log file at the next startup, and the modifications will not be made persistent to the disk. Then, the modifications will be made persistent to the database to ensure committed transactions, data is always modified.
How can I enable a transaction in oracle with such a command? When you enter a session, how do you know whether the current session is in a transaction?
BeginTrans is used to start a transaction; RollbackTrans is used to roll back t
specific in the oracletype enumeration. In addition, if the number type of Oracle is large, it exceeds. NET data type range, you must use system. data. special Class in oracleclient-oraclenumber type.
Well, I will not repeat these two comparisons. The following mainly discusses the types in the namespace of system. Data. oracleclient, that is, ADO. Net for ORACLE data provider.Program).
2. Database conn
It is prohibited to modify anything that involves oracle during the production period ., Time period oracle
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Warning:
It is prohibited to modify anything that involves oracle during the production period.
Description:
A database in
The server is Oracle
9i, nhib.pdf uses nhib.pdf. Driver. OracleDataClientDriver (Oracle. DataAccess. dll, and ODTwithODAC1020221 for installation. Because the official deployment is intended to use Oracle
10 Gb, so the client NHibernate uses this driver, and also to avoid problems when System. Data. OracleClient. dll i
System Requirements for Oracle
Enterprise Edition: CPU minimum Pentium 200M recommended PENTIUMIII 1G above
Memory Minimum 128M recommended 512M
Hard disk space system disk 140M installation disk 4.5G (FAT32) or 2.75G (NTFS)
Standard Version: CPU minimum Pentium 200M recommended PENTIUMIII more than 866
Memory Minimum 128M recommended 256M
Hard disk space system disk 140M installation disk 4.5G (FAT32) or 2.5G (NTFS)
Personal Edition: CPU minimum PENT
The shared pool in the SGA consists of a library cache, a dictionary cache (Dictionary cache), a buffer for parallel execution messages, and a control structure.
The size of the Shared POOL is determined by the parameter shared_pool_size. 9i, the default value of this parameter is 8M under 32-bit system, and the default value of 64-bit system is 64M. The maximum is 4G. 10g can be adjusted automatically by Sga_target parameters.
Memory management for
, diagnosing, and optimizing multiple databases3. tools for managing multiple network nodes and services from multiple locations4. share tasks with other administrators5. provides tools for managing parallel servers and replicated DatabasesVi. initialization parameters1. entries in the file are dedicated to the routines to be started2. There are two types of parameters:Show: There is an entry in the fileImplicit: there are no entries in the file, but it is assumed that the default value of
Oracle initialization parameter file knowledge, oracle knowledge
1. Server initialization parameter file Overview
The oracle initialization parameter file stores the initialization parameter configuration information required for database instance creation and startup.
The initialization parameter file is corrupted and the database cannot be started.
In 11g, the
ORACLE External table Summary, ORACLE table Summary
External table Introduction
ORACLE External tables are used to access Text files (Text files) other than databases or ORACLE exclusive format files. Therefore, when an External table is created, storage structures such as segments, partitions, and data blocks are no
following functions are not supported.
1. RAC
2. Partitioning
3. Data Mining
4. Advanced Security
5. Label Security
6. OLAP
7. Spatial
8. Oracle Management Packs
Orace 9i Standard Edition Enterprise Edition
The main difference between the Enterprise Edition and the Standard Edition of Oracle9i Database is that the Enterprise Edition has more powerful parallel and distributed processing capabilities. The S
be used for authorization on the Internet. This operation can be successful under 9i, but the permission for a select Column cannot be granted after 9i, however, you can grant insert and update permissions for a column.)
SQL> conn scott/scottConnected to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 Connected as scottSQL> create view v_test as 2 sele
protected]/] #dd if=/dev/zero of=/dev/rrac_ocr bs=8192 count=25602560+0 Records in2560+0 Records out[[email protected]/] #dd If=/dev/zero of=/dev/rrac_vote bs=8192 count=25602560+0 Records in2560+0 Records out[Email protected]/]#/u01/crs_1/root.shWarning:directory '/u01 ' isn't owned by root Checking to see if the Oracle CRS stack is already configured Checking to see I F any 9i GSD are up Setting the perm
Linux platform
The following Oracle operations are done under the Linux platform!1.su Oracle2.sqlplus/logon3.connect test/test Assysdba (Test/test is an Oracle user and password)4.startup5.lsnrctlPreferred Startup Databasesu-oracleSqlplus/nologConn/as SYSDBAStartupand then start listening:Enter/opt/oracle/product/9.2.0/bin/Lsnrctl startRun the Shudown command t
1. What is the initial password after oracle is installed?
Internal/Oracle
Sys/change_on_install
System/Manager
Scott/Tiger
Sysman/oem_temp
2. What is the initial Default User and password of Oracle9iAS Web Cache?
Administrator/Administrator
3. Oracle 8.0.5
How to Create a database in Oracle 8.0.5?Use orainst. If ther
operation does not lock DML operations for other sessions.The bitmap index, because the bitmap reflects data, different sessions to update the same key value of the same bitmap segment, insert, UPDATE, delete each other operations will be locked.For Oracle 8i,9i, single-row inserts, because a bit row (bitmap segment) records only 8 rows of records, the DML operation that locks up to 8 rows of data of the s
(Test/test is an Oracle user and password)4.startup5.lsnrctlPreferred Startup DatabaseSu-oracleSqlplus/nologConn/as SYSDBAStartupAnd then start listening:Enter/opt/oracle/product/9.2.0/bin/Lsnrctl startRun the Shudown command to close the database[oracle@wing/oracle]$ sqlplus "/As SYSDBA"//For SYSDBA user login to Dat
, the following functions are not supported.
1. RAC2. Partitioning3. Data Mining4. Advanced Security5. Label Security6. OLAP7. Spatial8. Oracle management packs
Orace 9i Standard Edition Enterprise Edition
The main difference between the Enterprise Edition and the Standard Edition of Oracle9i Database is that the Enterprise Edition has more powerful parallel and distributed processing capabilities. The Sta
. In the event of a problem with the Interconnect line, Oracle typically initiates a competitive mechanism to determine which instance is down, and if an instance of the outage is just a good instance, it will cause two instances to go down. In 9i, Oracle will wait for a period of time before starting the competition mechanism, waiting for the OS to send the stat
Tags: username nts TNS ORM lstat form table Space Delete maxReprinted from: http://blog.csdn.net/leshami/article/details/5731158One, rollback (ROLLBACK) and undo (undo)Rollback and roll forward are important means of ensuring that the data in an Oracle database is in a consistent state. --Before the 9i version Oracle uses the rollback segments in the database
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