oracle linux 7 4

windows 7 so far. During version check, it is prompted that oracle currently does not support windows OS with version 6.1. Download oracle 10g for vista and windows 2008 x86 for windows from the oracle official website supports the vista kernel. The windows 7 kernel is simi

Kernel. shmmni = 4096 Kernel. sem = 25032000100128 Fs. file-max = 65536 Net. ipv4.ip _ local_port_range = 102465000 Net. core. rmem_default = 1048576 Net. core. rmem_max = 1048576 Net. core. wmem_default = 262144 Net. core. wmem_max = 262144 2: vi/etc/security/limits. conf limits the oracle to open the page handle and so on. Oraclesoftnproc2047 Oraclehardnproc16384 Oraclesoftnofile1024 Oraclehardnofile65536 3: The information set in vi/etc/pam. d/log

transactions. Remember:The larger the table, the more benefits it will obtain from the table index.. Table 2 is the time it takes to perform various DML operations when using and without indexes on a table with millions of records: 3. How to create an index The syntax for creating an index is as follows: Create index index_name on table_name (column_name ); If you want to index more than one table, the syntax is as follows: Create index index_name on table_name (first_column_

Header_block, header_fileFrom Dba_segmentsWhere segment_name = 'test2' and owner = 'bys '; HEADER_BLOCK HEADER_FILE ------- Locate the field header from this statement ----------------------- 130 7 BYS @ bys3> select object_id, data_object_id from dba_objects where object_name = 'test2' and owner = 'bys '; OBJECT_ID DATA_OBJECT_ID ------------------------ 23199 23199 BYS @ bys3> alter table test2 allocate extent (size 960 k ); Table altered. BYS @ by

user_extents Group by tablespace_name, segment_name, segment_type; (4) Check the space usage of each user Select owner, tablespace_name, count (extent_id), sum (blocks ), Sum (bytes) from user_extents Group by owner, tablespace_name; (5) Check database space usage Select tablespace_name, count (extent_id), sum (blocks), sum (bytes) From user_extents Group by tablespace_name; (6) Check the free space of the current user Select tablespace_name, count (

permission from the owner, user group, and others of the dir directory to view the file information in the directory. [Root @ foundation42 Desktop] # chmod ug + x, o-r/mnt/dir ### Add the x permission to the owner and user group of the dir directory. The owner and user group can access the directory, other users cannot view the file information in the directory after removing the r permission. 5. Modify the File Permission In numeric Mode In linux:

architecture, principles, and performance monitoring tools.Learn the architecture, principles, setup, monitoring (including faults and performance), and troubleshooting and optimization. 7. SQL optimization (read a classic English book, experiment, practice, and analysis)Why do they come out separately? This part requires constant research and experimentation, and almost every day at work.At present, there are some classic Chinese documents, which ar

Install Oracle JDK in CentOS 7 Install Oracle JDK in CentOS 7 and check whether JDK is provided in Linux. If openJDK is available, uninstall it. Java-version Rpm-qa | grep-E '^ open [jre | jdk] | j [re | dk]' Uninstall openjdk Su rootYum-y remove java java-1.7.0-openjdk D

In Oracle Linux 5, we can use ORACLE validated configuration to accelerate the deployment of the Oracle environment. For more information about validated deployments, see: Oraclevalidated configurations installation instructions Http://blog.csdn.net/tianlesoftware/article/details/7061684 In

Install windows 7 Virtual Machine and oracle and win7oracleI. win7 Virtual Machine It is no different from installing a linux virtual machine. The difference is that the client operating system, memory, disk capacity, and image files are selected. Procedures for creating a Windows 7 virtual machine are simplified: Crea

This article describes how to install Oracle 11gR2 (11.2.0.3) in Oracle Linux 6.3 ). Since Oracle 11g, the official Oracle website does not provide a download link for its Patch. You need to use the Meatlink account to download the Patch. Do not worry about the kids shoes. I

from6 (7 select object_id, object_name from t order by object_name8)9 where rownum 10)11 where rn> = 11; 10 rows have been selected. Execution Plan----------------------------------------------------------0 SELECT statement optimizer = hint: first_rows (cost = 826 card = 20 bytes = 1840)1 0 view (cost = 826 card = 20 bytes = 1840)2 1 count (stopkey)3 2 view (cost = 826 card = 6361 bytes = 502519)4 3 Tab

. Generally, Java developers use Oracle-JDK as the standard for development. The following describes how to install and configure JDK in Linux. the Linux release version is Ubuntu 12.04. 1. Download JDK The latest JDK version is Java SE Development Kit 7u5. : Http://download.oracle.com/otn-pub/java/jdk/7u5-b06/jdk-7u5-linux