Oracle

Database fragmentation is a major factor in database performance and should be discovered and defragmented in a timely manner. First, how the debris is produced When a database instance is created, it is divided into multiple logical segments

In order to ensure the Oracle database running in the best performance state, the database optimization strategy should be considered before the information system development. The optimization strategy generally includes the server operating system

Ado.net executes the Oracle stored procedures as follows: OracleConnection con=new OracleConnection (Strcon); OracleCommand cmd=new OracleCommand (); OracleTransaction Mytrans; Try { Con. Open (); Mytrans =con. BeginTransaction (); Cmd.

oracle|server| Data | Database because the project needs to convert a database of previous Oracle to SQL Server, the database is migrated using SQL Server DTD today, but after import, only the table structure and data are imported. and table some of

oracle| function (author: Star Prodigal zhongcfido@126.com) Ocidefinebyname Allow the SELECT command to use PHP variables. Syntax: boolean ocidefinebyname (int stmt, string ColumnName, mixed &variable, int [type]); Return Value: Boolean

oracle| Data | database Java interface with Oracle: Running Java in a database can be said to be the most exciting new feature of Oracle8i. In the application you created to use the Oracle8i database, you can use new Java-related features to easily

This paper, through the research of Oracle Database lock mechanism, this paper introduces the type of Oracle database lock, and describes the abnormal situation of lock related in the actual application, especially to the problem that the

oracle| Repeat | repeat record You might be working at work. When you try to create a unique index to a column or column in a library table, you are prompted to ORA-01452: You cannot create a unique index and find duplicate records. Here's a

Oracle Part III, backup and recovery [Q] How to turn on/off the archive [A] If the archive is turned on, make sure that the log_archive_start=true is open for automatic archiving, otherwise it can only be archived manually, and set this argument to

oracle| Download [Oracle] Several important e-book downloads Initial Link: Http://www.dbanotes.net/Oracle/DB_Books_Download.htm For Oracle technology enthusiasts for reference. For the purpose of communication, please do not use it as a commercial

Oracle How to present Oracle's related functions in DB2 (i) Author:ccbzzp In reality, you may often encounter some of the functions of Oracle in DB2, Here I simply conclude that there may be many ways in which a function can be found, not all of

Step One: Enter the client shell fulong@fbi008:~$ sqoop.sh Client Sqoop Home directory:/home/fulong/sqoop/sqoop-1.99.3-bin-hadoop200 Sqoop shell:type ' help ' or ' \h ' for help. Sqoop:000> Set server--host FBI003--port 12000--webapp Sqoop

Directory First, sybase12.5 for NT version in the Win2000 platform installation, the interface characters appear garbled problem Second, Sybase after the network share or copy to the local hard disk, still can not install the problem Third, after

Look at a simple example: Sql> CREATE TABLE T as 2 SELECT * from Dba_objects; Table has been created. Sql> SET Autot on Sql> SELECT COUNT (*) from T; COUNT (*) ---------- 49611 Execution plan ------------------------------------------------

A major feature of the 10g data Guard is the introduction of the Log_archive_config parameter, which may cause the archive path to be disabled if this parameter is missing. See other people set up data guard encountered this problem, then feel more

Through the previous introduction we know that the main line link is due to the db_block_size of the database is not large enough for some large fields can not be stored in a block, resulting in a row link. For row links We have nothing to avoid

Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most

In many cases of development, for convenience or commonality of consideration, we first consider the SQL Server database for development, but sometimes the customer's production environment is Oracle or other database, then we need to transform the

Oracle Service Scanning Tool Oscanner Oracle is a relational database launched by Oracle for large-scale data storage such as large enterprises, telecommunications, banking and other industries. Kali Linux integrates the Oracle Service Scan

1. Modify the Hosts fileVi/etc/sysconfig/network-scripts/ifcfg-eth0#Public192.168.1.240 Node1192.168.1.241 Node2#Virtual192.168.1.242 NODE1-VIP192.168.1.243 NODE2-VIP#Private192.168.0.240 Node1-priv192.168.0.241 Node2-priv#SCAN192.168.1.245