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  MySQL5.5 multi-instance compilation and installation-- multiple configuration files

  1. What is MySQL multi-instance? MySQL multi-instance simply means to install a set of MySQL programs on a server and provide access through different ports. Multiple instances not only save the cost of physical hosts, but also effectively improve the CPU and disk IxO usage efficiency of a single physical host.

  2022-06-01 08:36:18 Views: 220
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  Information on mongodb

  Http://tech.49jie.com/?p=1298http://oldj.net/article/notes-on-mongodb/

  2022-06-01 08:36:18 Views: 255
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  Oracle shared_pool_reserved_size parameter setting description

  When you enter SQLPLUS and query shared_pool, you will often see the following results: SQL > show parameter shared_poolNAME TYPE VALUE-

  2022-06-01 08:36:18 Views: 290
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  MySQL date type

  Main types: YEAR, TIME, DATE, DATETIME, TIMESTAMP (date function: current_date (current date), current_time (current time), now () (current date and time, according to the field

  2022-06-01 08:36:18 Views: 265
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  Oracle 11g CentOS7-based silent installation tutorial (no graphical interface, remote installation)

  First, pre-installation environment preparation 1, VMware Workstation 10 to build CentOS7 x64-bit virtual machine, CentOS7 operating system minimum installation, 2G memory, 20g disk space, 1 core CPU, has been configured with network IP:1

  2022-06-01 08:35:52 Views: 218
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  Topic: Mybatis3.0 query, save, update, delete data.

  Recently, I intend to develop a technical framework, and apply this framework to develop a forum, first intend to use sturts2+spring+hibernate+jquery as the basis, and then encapsulate, and finally form a technical framework, but through this website to know the mybatis ratio

  2022-06-01 08:35:34 Views: 309
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  Memcached notes

  When you have time to stay at home on weekends, make a memo to memcached, summarize it, and provide you with a reference. If there are any misunderstandings, please correct me. 1. Memcached: a set of software that uses system memory for data caching, often used for dynamic web sets

  2022-06-01 08:35:29 Views: 219
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  How to use mysql conditions to query and and or and their priority

  Editor this time to share with you how to use mysql conditions to query and and or and their priority, the article is rich, interested friends can learn about it, I hope you can get something after reading this article. Mysql and and or introduce AND and O

  2022-06-01 08:35:29 Views: 243
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  Analysis of High version of Oracle SQL statement

  Analysis of high version of OracleSQL statement 1. What is a high version each time a SQL statement is executed, if each child cursor under a parent cursor that already exists in the library cache cannot be reused (that is, shared) by the SQL statement, it will

  2022-06-01 08:35:22 Views: 272
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  The company's practical Replica Sets+Sharding solution adopts configuration file 2

  The company's actual combat Replica Sets+Sharding scheme adopts configuration file 2 company mongo cluster sharding actual combat server three hosts 1 (172.16.0.115) host 2 (172.16.0.114) host 3 (172.16.

  2022-06-01 08:35:22 Views: 242
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  Paging query in Oracle ~ ~ ROWNUM (line number)

  For the table in Oracle, in addition to the fields we designed when we created the table, there are actually two fields (only 2 here), which are ROWID (line identifier) and ROWNUM (line number). Even if we use the DESCRIBE command to look at the structure of the table, we can't see the two

  2022-06-01 08:35:21 Views: 220
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  Get login database instance-level permissions

  SELECT 'EXEC master..sp_addsrvrolemember @ loginame, @ rolename = N'''+priv+''''F

  2022-06-01 08:35:18 Views: 293
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  Oracle 12C R2 single instance is installed in rhel7.2

  Last night, I saw that the 12.2.0.1 version of Gaizao's Wechat was open for download, so I immediately boarded edelivery to download it, and now it only opens the 64-bit version of Linux. Today I tested the installation on rhel7.2 12.2.0.1. Overall security

  2022-06-01 08:35:18 Views: 238
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  The basic part of MySQL (02): the structural design of the review table from five dimensions.

  Source code of this article: GitHub click here | | GitEE click here 1, data scenario 1, table structure introduction any tool class is to solve the problems in a certain scenario, such as Redis cache system hot data, ClickHouse to solve the real-time division of massive data

  2022-06-01 08:35:18 Views: 205
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  MongoDB Note 5-insert Operation

  1. Insert syntax db.person.insert ({name: "* *"}) 2. Batch insert db.person.insert ([{name: "1"}, {name: "2"}, {name: "3"}])

  2022-06-01 08:35:17 Views: 256
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  Practical Cacti Network Monitoring (1)-- basic installation configuration

  Lab environment: physical host redhat7.0 kernel version 3.10.0-123.el7.x86_64 virtual machine redhat6.5 kernel version 2.6.32-431.el6.x86_64server10.examp

  2022-06-01 08:34:57 Views: 230
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  How to manage users and roles using MySQL 8.0

  This article mainly shows you how to use MySQL 8.0 users and role management, the content is easy to understand, I hope you can learn, after learning there will be gains, the following let the editor to take a look at it. Many new features have been added to MySQL8.0, among which users

  2022-06-01 08:34:51 Views: 211
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  How to import and export MySQL table data

  This article mainly explains how to achieve the import and export of MySQL table data, the content is clear, interested friends can learn, I believe it will be helpful after reading. Data export 1. Use SELECT... INTO OUTFILE...

  2022-06-01 08:34:51 Views: 226
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  Oracle linux 5.8Install oracle 10g database

  1. Download oracle luinux 5.8and oracle 10g database software 2. Operating system installation (1). Graphical interface installation (2). System partition / root partition (17G) / boot install oracle partition (512m) swap

  2022-06-01 08:34:21 Views: 214
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  The first experience of Redis

  Redis is a very fast non-relational database with not only strong performance, but also replication and a unique data model created to solve problems. As a key database, Redis supports data types in 5: strings, lists, collections, Hash hashes and

  2022-06-01 08:34:10 Views: 221