oim oracle

Oracle Performance Analysis 8: Creating indexes and oracle performance indexes When creating an index, we often want to estimate the index size to evaluate the impact on the existing engineering environment. We also hope that the index creation process will minimize the impact on the running engineering environment, you can also view the index status.Estimate index size The best way to estimate the index si

In oracle, how does one view the permissions granted to a role ?, Oracle Grant In oracle, how does one view the permissions granted to a role? Select * from dba_role_privs; grant roles to users and other roles Select * from dba_sys_privs; grant system permissions to users and other roles Select * from dba_tab_privs; all permissions on objects in the database Ref

ArticleDirectory Making Oracle Spatial your default geometry Schema How does ArcSDE use Oracle Spatial? (How to use Oracle Spatial in ArcSDE) ArcSDE supports Oracle Spatial or Oracle locator for storing and managingGeometry in an

If the database uses the ASM file system for management, it may be difficult to download and upload files. Even if the asmcmd tool is used, there is no command similar to CP to copy files, oracle provides FTP to manage a series of ASM files. Using FTP with Oracle ASM fileshttp: // docs.oracle.com/cd/e11882_01/appdev.#/e23094/xdb22pro.htm?adxdb5537 Oracle Automati

Oracle's DB instance is a set of background processes and memory structures, and the memory structure consists of the system global area and the program global Zone.#修改SGA和PGA的配置文件, usually in/. sgz_max_size=64m, sga_target=64m, pga_aggregate_target parameters in/oracle/admin/spfile/init.ora, or alter system set in Sqlplus Sga_max_size=64m Scope=spfile; After modification, restart the database and the service takes effect.System global Area (SGA): A p

Tags: share development client Analytics admin hint Dev Oracle strConfiguring the Environment Oracle Service SideOracle_winx64_12c_database.iso Oracle ClientInstantclient-basiclite-nt-12.1.0.1.0.zip Integrated development EnvironmentPL/SQL Developer 10.0.5.1710 Configuration steps Make sure that Oracle has completed th

There are four common principles in transactions that all databases must adhere to, the acid principle, and a brief overview of how Oracle achieves these four principles. I. atomicity (atomicity): A transaction is either all executed or none of the execution In Oracle, when we make a change, an undo record is automatically created to describe how to undo the change. That is, when executing into the middle o

Tags: oracle redo undo Imu I. OverviewWe know that in Oracle, every modification of a piece of data produces a redo (that is, redo, which records the modified content). The goal is to back up the modified data to facilitate future re-work. Now there is a problem. Whenever data is modified in Oracle, Redo is generated, and these redo are stored in a buffer called

Oracle Video Tutorial Goals Oracle Video tutorial, wind Brother this set of Oracle Tutorial Training learning Oracle Database about Flashback concept, Flashback parameter setting and archive mode, Flashback recovery case-flashback Database,flashback Drop,flashback query,flashback version query,flashback Transaction qu

Http://www.itpub.net/thread-1478468-1-1.html Http://tomszrp.itpub.net/post/11835/520574 Since version 11.2.0.1, Oracle has provided a new space allocation method: When you create a non-partition table, this table segment is not created immediately, instead, the segment is created only when the first row of the record is inserted. This is different from the method used to create and allocate space for the segment. such a segment is also calledLatency.

Oracle 11g ASM: how to create an Oracle ACFS file system experiment environment in ASMCMD command line tool: Oracle 11g R2 RAC (11.2.0.3.5) oracle Enterprise Linux 5.6x86 1. Create an ASM disk group and mount the disk on two nodes. Then, partition the disk on the first node. [root @ rac1 ~] # Fdisk-lDisk/dev/sde: 2147

Football and oracle series (5): The directX library missing in the voda14 game is similar to the oracle rpm package, fifa 14rpm **************************************** ******************************** ************** Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible.

Oracle study-oracle 11g OCM Exam (1)System environment: RedHat EL64Oracle:oracle 11gR2Oracle 11g OCM Exam First, manual build library, reference document 650) this.width=650; "Src=" http://img.blog.csdn.net/20160408214710987?watermark/2/ Text/ahr0cdovl2jsb2cuy3nkbi5uzxqv/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity/center " Style= "Border:none;"/>. The reference person must be familiar w

Share: Oracle System Variable Function usage instructions, oracle VariablesIn Oracle databases, Oracle System variable functions are frequently used. Let's share the usage of Oracle System variable functions. Oracle functions are

Oracle cross-database query replication table data distributed query introduction, oracle Method 1: Currently, most databases require distributed queries. The following describes how to configure cross-database access in oracle.For example, there are two database servers and two databases are installed. Database server A and B. Now, database A accesses database B. Step 1: configure the tnsnames. ora File (T

ORACLE multi-Table query optimization and ORACLE Optimization ORACLE has a high-speed buffer concept. This high-speed buffer is used to store the executed SQL statements. Therefore, oracle has to do a lot of work when executing SQL statements, such as parsing SQL statements and estimating index utilization, bind variab

Oracle object-oriented and set-oriented, oracle object-oriented This is a summary of my recent learning experience. 1. oracle object-oriented We all know that SQL is set-oriented, but it is undeniable that there are many places in oracle that reflect the object-oriented thinking. (This is also a sign that major languag

Some Oracle database query optimization suggestions are comprehensive, oracle Database 1. To optimize the query, try to avoid full table scanning. First, consider creating an index on the columns involved in where and order.2. Try to avoid null value determination on the field in the where clause. Otherwise, the engine will discard the index and perform full table scanning, for example: select id from t whe

Common oracle knowledge accumulation and oracle knowledge accumulation1. Basic operation 1. Table operation 1.1 copy and create a table Create table test as select * from dept; -- copy data and structure from a known table Create table test as select * from dept where 1 = 2; -- copy the structure from a known table but not including data1.2 copy and insert Insert into test select * from dept;1.3 create a te

[One of Oracle XE series] install Oracle XE11gR2 X64 database in Windows10_X64 environment, and create database in oraclexe I. Installation 1. Go to the Oracle official website to download the XE installation package [Download path] (Oracle Database Express Edition 11GRelease 2 for Windows x64), decompress.