Oracle

1. Installation packageYum install-y Yum InstallYum Install-y binutilsYum Install-y compat-libstdc++-33Yum Install-y elfutils-libelfYum Install-y elfutils-libelf-develYum Install-y ExpatYum install-y gccYum Install-y gcc-c++Yum Install-y glibcYum

Oracle uses SQL statements to modify field types1. If there is no data in the tableSQL code 123 altertable 表名 modify （字段名1 类型,字段名2 类型,字段名3 类型.....）  alter table student modify(id number(4));---将student表中id字段改为number，长度4   alter

Oracle Delete user commands and partial commandsDrop user user_name cascade;Drop user user_name cascade;CREATE TABLE SpaceCREATE tablespace DATA01DataFile '/oracle/oradata/db/data01.dbf ' SIZE 500MUNIFORM SIZE 128k; #指定区尺寸为128k, if not specified,

This article transferred from: http://blog.csdn.net/loongshawn/article/details/504964601. Mybatis jdbctype with Oracle, MySQL data type corresponding list Mybatis Jdbctype Oracle MYSQL Jdbctype

First, through an example, the intuitive feeling of the analysis function is simple and convenient:Create Table criss_sales ( dept_id VARCHAR2(6), -- Department number Sale_ Date Date , -- Sales Date VARCHAR2(4),- -

Oracle Foundation Brief introduction DB instance Table Space Login Identities and Roles User 1 1 1 Oracle Foundation :　　Oracle database creation cannot be done with a simple CREATE DATABASE

I. BACKGROUNDIn a realistic environment, we have some services need to monitor, but Zabbix's own monitoring template does not exist, we need to configure ourselves, our main method is to monitor the port status of these services to determine whether

Switch to Oracle User: Su-oracle, and execute under Oracle command line:Launch into Oracle:Connection database: Sqlplus/as sysdbaWindows Client Remote connection Oralce:Sqlplus Itmuser/[email PROTECTED]//192.168.14.10:1521/ORCLTest with

Stored ProceduresIn Oracle, you can define subroutines in the database, which are called stored Procedures (procedure). It is stored in a data dictionary that can be shared between different users and applications, and can be optimized and reused

For cursors, you first need to know the definition of the cursor.A cursor, an area in memory that holds the result set of a SelectCursors are used to process multiple rows of records retrieved from the database (using the SELECT statement). Cursors

EXEC master.dbo.sp_addlinkedserver @server = N ' Testlink ', @srvproduct =n ' Oracle ', @provider =n ' oraoledb.oracle ', @ Datasrc=n ' SOURCEORCN 'EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname =n ' Testlink ', @useself =n ' False ', @locallogin =

Oracle is commonly used to rownum, so do some of my knowledge of rownum and the use of skills to record for reference.I. Description of the RowNumRowNum is a keyword unique to Oracle.(1) For base tables, when an insert is recorded, Oracle assigns

By using the database server side of the Sqlnet.ora file can be implemented to prohibit the specified IP host access to the database, which is a great help to improve the security of the database, at the same time, this technology for us to manage

Oracle Client Installation Error: Reference data is not available to verify the prerequisites for this operating system distributionHttp://tunps.com/p/11797.htmlThe reason is that the Oracle Client 11g version does not support the latest WIN10

When a new feature of Oracel comes out, we may not know all the data dictionary names associated with this feature,So how do you get meta data for these meta data?Can be viewed through Dicitonary:For example, find a list of data dictionary names

[Oracle] Compatibility of TM Lock (DML enqueue)RS (SS): line sharing Lmode =2RX (SX): Line exclusive Lmode =3S: Shared lmode=4SRX (SSX): Share exclusive Lmode=5X: Exclusive lmode=6On the left is the lock that has been acquired, and the right is the

If the database has only one set of control file files, you need to add one or more groups to ensure that a set of files is corrupted or missing causing the database to crash.--Environmental descriptionSql> select * from V$version;BANNER-------------

C # Operations SQL Server MYSQL Oracle Generic helper Class "Preface"As a mature object-oriented high-level programming language, C # in the support of ADO is already very mature, we can easily invoke the ADO operation of various types of relational

Oracle External connections(1) Left outer connection (the table on the left is unrestricted)(2) Right outer connection (no restriction on the right table)(3) Full-outer connection (no restriction on both the left and right tables)Outer JOIN (Outer

1.oracle database download, installation, uninstallationOracle Downloads:Oracle Download link Address: http://www.oracle.com/technetwork/cn/database/enterprise-edition/downloads/index.htmlsuch as: Choose to accept the agreement, choose their own