Oracle

?? The benefits of Oracle's elastic Cloud and data warehousing are obvious, starting with the single vendor offering all the underlying components: Oracle's one-stop-all approach helps streamline licensing, support, upgrades, and consolidation, all

I. Oracle CLUSTER architectureOracle RAC, the full name of Oracle Real application Cluster, a true application cluster, is a parallel cluster system provided by Oracle with the entire cluster system from Oracle Clusterware (cluster ready software)

The Oracle information security management architecture focuses on Oracle's strategy to help users securely store and access information, including the following three layers: Ensure security at the application layer. The biggest challenge to

HACMP can be said to be a server engineer, and there is no unknown-IBM's housekeeping architecture. I have recently asked readers to talk about the issue of HACMP by phone or email. Here, I will repost an article from IBM, which is very well written

There are many date functions in oracle, such: 1,Add_months ()Used to increase or decrease the number of months from a date value. Date_value: = add_months (date_value, number_of_months) Example: SQL> select add_months (sysdate, 12) "Next Year"

1. What is the cursor? Oracle uses two types of cursor: explicit cursor and implicit cursor. No matter how many records are returned by the statement, PL/SQL implicitly declares a cursor for each SQL command, such as UPDATE, DELETE, and INSERT. To

Oracle released Oracle medical supplier supply chain analysis software: 1. Oracle recently announced the release of Oracle medical supplier Supply Chain analysis software (Oracle Healthcare Provider Supply Chain Analytics), the latest Component of

  Preface This article describes DBA's daily responsibilities in monitoring Oracle databases and how to use shell scripts to perform repeated monitoring. This article first reviews some common DBA Unix Commands and explains how to regularly execute

Oracle notes (9) Table creation and management links: Oracle notes (1) Oracle introduction and installation tips (2) SQLPlus command http://www.bkjia.com/database/201209/154051.html#oraclenotes (3) Scott user's table structure workshop (4) simple

Windows 7 + 64-bit + Oracle + 11g + 64-bit use PLSQL + Developer solution 1) install Oracle 11g 64-bit 2) install 32-bit Oracle client (instantclient-basic-win32-11.2.0.1.0) download instantclient-basic-win32-11.2.0.1.0.zip (it must be a 32-bit

Use of oracle sqlplus 1. log on to sqlplus www.2cto.com oracle @ omu:> sqlplus/assysdba oracle @ omu:> sqlplus sys/oracle as sysdba 2 as a system administrator. connect to the database (You need to log on to sqlplus first) SQL> conn cgp_1/cgp_1 SQL>

Oracle 11g Flashback Data Archive (flash back Data archiving) UNDO tablespace record rollback information although it can provide flash back query, but for a long time, this information will be overwritten. In fact, as long as the transaction is

When the control file backup and recovery instance is started, the process must read the control file and write the control file. Therefore, if a control file is damaged, the instance cannot be mounted. That is, the control files in this phase are

[Oracle] Data Guard series (4)-creating a physical standby database without stopping the master database needs to create a physical standby database of DG for a 24x7 production database, the master database must not be shut down. At first, it was

Rman backup recovery test 1, Open Database new test data $ sqlplus/nolog SQL> conn/as sysdba SQL> startup SQL> create table cds (id number (1 ), name varchar2 (20); SQL> insert into cds (id, name) values ('1', 'litao'); 2, start to archive mode $

The daily work and responsibilities of DBAs in Oracle --- [1] The following summary is a summary written in "Deep Oracle", which corresponds to the amount of funds learned. 1. Let's take a look at Oracle's learning route: 2. learning basics: I have

Oracle Constraints * If a constraint only applies to individual fields, you can define the constraint at the field level or at the table level. However, if a constraint acts on multiple fields,Constraints must be defined at the table level* When

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

The ORACLE tutorial is: Comparison between Oracle and SQL Server in enterprise applications. My company not only owns Oracle databases but also SQL Server databases, so I often encounter two problems that people ask me.The first is usually "can you

There are many date functions in oracle, such: 1,Add_months ()Used to increase or decrease the number of months from a date value. Date_value: = add_months (date_value, number_of_months) Example: SQL> select add_months (sysdate, 12) "Next Year" from