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  Introduction of MongoDB structure Analysis tool-- Variety

  Today, I would like to introduce a software to analyze the structure of MongoDB database tables-- Varity. For the database of Schema Free such as MongoDB, it is difficult to see at a glance how to query the data stored in collection with the software.

  2022-06-01 09:05:55 Views: 301
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  Change 18.EVE-NG to Learning Centre version and reset Web account password

  Article list (follow Wechat official account EmulatedLab, timely access to articles and download links) 1, EVE-NG introduction (the best simulator for EVE-NG, the era of simulation environment is coming! ) 2. Introduction to EVE-NG installation process. 3. Import EVE-NG into Dyna

  2022-06-01 09:05:55 Views: 245
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  Oracle11gR2 uses RMAN duplicate to replicate the database-- Backup-based database duplicate

  This example tests that ORACLE 11g uses rman to replicate the database. 11g RMAN duplicate can be obtained through both Active database duplicate and Backup-based duplicate.

  2022-06-01 09:05:54 Views: 326
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  Jump of Branch Node in Workflow

  As shown in the following figure: when the contract countersignature is in circulation, each approval node has three opinions and conclusions: agree, disagree, and suspend; when the approver chooses not to agree, after the approver fills in the corresponding opinions, the process is automatically transferred to the "Capital equipment Office modification" node, where the executor modifies the corresponding content of the contract; and then returns

  2022-06-01 09:05:54 Views: 223
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  HBase and HDFS data mutual guide program

  Let's talk about the functions of these classes provided by JAVA API and how they relate to each other. 1.HBaseConfiguration relationship: org.apache.hadoop.hbase.HBaseConfiguration

  2022-06-01 09:05:51 Views: 299
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  Mongodb Master-Slave Model

  Master-slave mode architecture diagram: master-slave configuration installation: 10.10.20.160 (master)-> 10.10.20.161 (slave) Master:tar zxvf mongodb-linux-x86_64-2.2.2.

  2022-06-01 09:05:48 Views: 203
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  ORACLE ADF11g:VO code addition, deletion and modification

  In ORACLE ADF, VO is mainly responsible for adding, deleting, changing and querying, and there are many ways to achieve the most basic additions, deletions and changes to VO. Next, we will show how to add, delete and modify with code. Illustration:

  2022-06-01 09:05:18 Views: 288
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  Database transaction differences: the difference between committable reads and repeated reads

  This article comes from my own blog: http://www.wangerbao.com/?p=279Mysql default thing is Repeatable Read Isolation Level, PostGres default thing

  2022-06-01 09:05:17 Views: 244
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  How to store FTP user account in MariaDB database

  FTP service has a long history, but because it appeared earlier, security issues were not taken into account at the beginning of the design. Up to now, FTP service still uses plaintext transmission protocol, but it is retained because of its convenient construction and use. Today, I'm going to share with you how to build a server.

  2022-06-01 09:05:17 Views: 298
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  Dbms_scheduler create_job repeat_interval Liezi

  Article from oracle official website 29.4.5 Setting the Repeat IntervalYou can control when and how often a job repeats.

  2022-06-01 09:05:11 Views: 285
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  ORA-00904 under PLSQL:

  Check execution plan error under plsql: ORA-00904: "OTHER_XML": invalid identifier solution: 1. The user who reported the error logged in to sqlplus and executed the following command: sql > drop table PLAN_TABLE;2

  2022-06-01 09:05:11 Views: 238
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  Simple configuration of master-slave synchronization of Mysql database

  1. Master-slave synchronization: (Amurmuri-> B) master:192.168.71.128slave:192.168.71.1381, Master configuration: vi / etc/my.cnfserver-id = 1log-bi

  2022-06-01 09:05:10 Views: 260
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  Redis automatic master-slave switching

  127.0.0.1 7000 master127.0.0.1 7001 slave127.0.0.1 7002 slave127.0.0.1 7003 slave View the slave redis-cli connected above the master

  2022-06-01 09:05:10 Views: 246
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  Centos7 change mysql password and modify Policy

  In later versions of centos7, after installing MySQL through the yum source, you need to check the log file, find the temporary password, and then change the password after logging in to MySQL for the first time. Or, change the password policy, of course, you also choose not to change the password policy, I am

  2022-06-01 09:05:10 Views: 240
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  Oracle 12c migrates pluggable database to heterogeneous libraries

  1. Source database: SQL > show pdbsCON_ID CON_NAME OPEN MODE RESTRICTED--

  2022-06-01 09:05:10 Views: 227
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  A simple DOS command to operate the database

  Simple DOS command operation database startup service: net start database service name shutdown service: net stop database service name connection database: mysql-u user name-p password show databases-- show the service

  2022-06-01 09:05:10 Views: 297
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  SQL Server Alwayson Building one: planning

  Plan: 3 virtual machines: one is used as domain control (DC), the other two are installed with SQL Server serial number name TCP/IPv4 remarks 1sqldc192.168.0.100255.255.255.0192.168.0.254DNS:1

  2022-06-01 09:05:09 Views: 243
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  Cascaded truncate

  In versions prior to 12c, truncation of a master table was not provided when the child table referred to a master table and where there were records in the child table. The TRUNCATE TABLE with CASCADE operation in 12c can truncate the records in the main table and automatically match the child tables.

  2022-06-01 09:05:09 Views: 202
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  Oracle login method

  Administrative tool 1 sqlplussqlplus account name / password as role name administrator login-> sys system1 sys login sqlplus sys/oracle as sysdbaSQL*Plus: r

  2022-06-01 09:05:09 Views: 263
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  Summary of the use of Oracle Hash partition

  The recent project needs to use the partition table, but the partition key value can not be determined, so can only use hash partition (range, list partition used to be simpler than hash partition), query the document, found that there is a gap between the above and the actual use, specifically do experiments to verify. Official

  2022-06-01 09:05:09 Views: 281