Oracle

In Windows, it is very easy to back up, transfer, and restore data. You can directly use visual operations and then use Remote Desktop operations, at the same time, you can transfer the backup file to another server through remote desktop or folder

The default local net configuration file varies depending on the installation path. refer to the following path: E: \ oracle \ product \ 10.2.0 \ db_1 \ Network \ admin Oracle also provides a visual Configuration tool: net manager, which helps you

In addition, some of the differences they listed are quite meaningful. Some may be due to their own identity as a MySQL dBA, and some may be confused about oracle. however, in general, the list of Baron Schwartz can help you understand the

Two Methods: 1.IP+ SID method 2. Configure the Link Method1. IP + SID Copy codeThe Code is as follows: DbHelperOracle. connectionString = string. Format (@ "Data Source = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = {0}) (PORT

Import java. io. BufferedOutputStream;Import java. io. ByteArrayInputStream;Import java. io. IOException;Import java. io. InputStream;Import java. io. OutputStream;Import java. io. Reader;Import java. SQL. Clob;Import java. SQL. Connection;Import

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

The ORACLE tutorial is: naming rules for Oracle database management scripts. The data dictionary in Oracle is a very important part of the database and provides information about the relevant database. It is used by all Oracle users (from

After installing Oracle 10g R2 in CentOS 6.3 and restarting it, you will find that Oracle is not started on your own. This is normal because Oracle Installation in Linux does not start on your own, you must set relevant parameters. First, we will

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How to deal with the high cpu usage of oracle, this article will introduce the high CPU usage of the oracle process, You Need To Know More friends can refer1: first, use the TOP command to upload the SPID that occupies the CPU.PID USERNAME THR PRI

Today a friend asked the following case, ORA-01114, ORA-27067 and OSD-04026 errors at the same time: * ** Action name :() 09:31:00. 762* ** Module name :( JDBC Thin Client) 09:31:00. 762* ** Service name :( SYS $ USERS) 09:31:00. 762* ** Session id:

Learning oracle 10g r2 concepts in the afternoon Leave a note here. Oracle manages the storage space in the database data file. The unit is data block ). A data block is the smallest (logical) data unit in a database. The minimum physical storage

I. There are two types of auto-incrementing self-segments for tables. One is that different tables use their respective Sequence. The method is as follows: 1. Create a sequence in Oracle sequence first Create sequence seq_idminvalue 1 start with 1

TO_NUMBER (char [, 'format _ model']) character to numeric typeTO_DATE (char [, 'format _ model']) character conversion to date typeFormat description: the format of the string to be converted from the front must be the same as that of the string to

The ORACLE tutorial is: naming rules for Oracle database management scripts. The data dictionary in Oracle is a very important part of the database and provides information about the relevant database. It is used by all Oracle users (from

The ORACLE tutorial is the SH file of the logical backup of the Oracle database. Full backup SH file: exp_comp.sh Rq = 'date + "% m % d "' Su-oracle-c "exp system/manager full = y inctype = complete file =/oracle/export/db_comp $ rq. dmp" Cumulative

The ORACLE tutorial is: Oracle9iPL/SQL programming experience. I usually encounter some problems in PL/SQL programming. I will summarize them in the form of Q & A for you to share.1. Can pipelines be used to improve processing efficiency when you

The ORACLE tutorial is: Oracle SQL Performance Optimization Series III. 8. Use the DECODE function to reduce processing timeYou can use the DECODE function to avoid repeated scan of the same record or join the same table.For example:Select count (*),

The ORACLE tutorial is: Oracle SQL Performance Optimization Series 1. 1. select an appropriate ORACLE optimizerThere are three optimizer types in ORACLE:A. RULE (RULE-based) B. COST (COST-based) c. CHOOSE (selectivity)Set the default optimizer.

Role Switching between Data Guard master and slave databases is divided into the following two types:1) SwitchoverSwithchover is generally designed to switch roles, such as upgrading. It is usually lossless, that is, there will be no data loss.Its