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  MongoDB 3.2 release Notes (Release Notes for MongoDB 3.2)

  MongoDB 3.2 release Notes (Release Notes for MongoDB 3.2) original text: https://docs.mongodb.org/master/release-notes/3.

  2022-06-01 22:07:42 Views: 229
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  Comparison of MySQL performance benchmarks: MySQL 5.7 and MySQL 8.0

  Copyright notice: this article is organized by the Tencent Cloud database product team. The original content of the page is from the db weekly English official website. If you reprint it, please indicate the source. The purpose of translation is to convey more information related to the latest global database field, which does not mean that the Tencent Cloud database product team agrees with its point of view or confirms it.

  2022-06-01 22:07:42 Views: 255
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  Mongodb Index (3)

  Full-text indexing MongoDB has a special index to search for text in documents. Previous blogs used exact matching to query strings, and these techniques have certain limitations. The speed of searching large chunks of text is very slow, and can not deal with the issue of natural language etiquette. The full-text index uses "upside down"

  2022-06-01 22:07:42 Views: 284
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  Oracle Dg configuration process

  Chapter one: Dg theory tells that Data Guard (Dg for short) is a tool in oracle high availability system. Dg provides data protection through redundant data, and Dg ensures the synchronization of redundant data and master data through log synchronization mechanism. This synchronization can be real-time and delayed.

  2022-06-01 22:07:35 Views: 237
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  Configure mongodb service under windows

  Create the file mg.conf under the same level directory in the bin directory and write as follows: dbpath=D:\ Program Files\ MongoDB\ Server\ 3.2\ data # database path logpath=D:\ Progr

  2022-06-01 22:07:35 Views: 230
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  Analysis of the working principle of mydumper

  1. Brief introduction of logical backup small steel cannon-mydumper is a high-performance multithreaded backup tool for MySQL. The tool is developed by developers from MySQL, Facebook and skysql. Is developed by lightweight C language; execution speed is said to be faster than my

  2022-06-01 22:07:31 Views: 201
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  Vmware card, start error after direct kill process. "the virtual machine is making

  Open three vmware virtual machines, host exception card, direct kill vmware process. The virtual machine shuts down abnormally. The prompt appears when starting again: "the virtual machine seems to be in use, please press the" take ownership (T) "button to get his ownership, otherwise press cancel and click two.

  2022-06-01 22:07:16 Views: 208
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  Practice of backup of Dameng database

  Dameng database backup method: physical backup, logical backup cold backup: (when dmap service is on, database is closed) Hot backup: (dmap service must be open, database is open, database needs to be opened for archiving) logical backup import and export: dexp dimp set

  2022-06-01 22:07:16 Views: 232
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  Python inserts Hbase experiment through Thrift

  # pythonfrom thrift import Thriftfrom thrift.transport import TSocketfrom thrift.transport import TTr

  2022-06-01 22:07:05 Views: 252
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  MySQL Partition Type

  Blog outline: 1. RANGE Partition 2, LIST Partition 3, HASH Partition 4, key Partition 5, MySQL Subtable and Partition 6. Add: how to store MySQL Partition in different directories as follows: RANFGE Partition LIST

  2022-06-01 22:07:05 Views: 274
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  Detailed explanation of the inner type of redis string

  The string in the redis string Redis is a sequence of bytes. Strings in Redis are binary safe, which means that their length is not determined by any special termination character. Therefore, you can store any of up to 512 megabytes in a string

  2022-06-01 22:07:04 Views: 260
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  Summary of mongodb Learning (1)

  About the default setting of mogodb database: 1. The default port setting is: 270172. The location of the database file is c:/data/db by default. It is recommended to modify it to another disk location. The data/db folder 3.mongodb must be created in the root directory of the disk.

  2022-06-01 22:06:59 Views: 279
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  Mongodb replica set implementation

  An overview of the MongoDB replica set the following pictures are extracted from the official MongoDB document: http://docs.mongodb.org/manual/core/replication-introduction/Primary node

  2022-06-01 22:06:59 Views: 228
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  Mongodb backup script

  #! / bin/bashsourcepath='/mnt/mongodb/bin'targetpath='/mnt/mongodb/back' # backup directory nowtime=$ (date +% Y%m%d) s

  2022-06-01 22:06:58 Views: 279
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  Oracle 11.2.0.4.0 install for

  Win10 (Professional Edition) platform may encounter the following problems when installing an oracle stand-alone: one: install the second step, skip the software update Times error: [INS-30131] failed to perform the initial setup required to verify the installer. Second: create an instance using DBCA

  2022-06-01 22:06:42 Views: 257
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  Oracle generates uuid and queries uuid

  If you haven't already created the table, you can do it in the following way. Create table testuu (id varchar2 (2000) default sys_guid (), name varchar2 (2000)

  2022-06-01 22:06:42 Views: 215
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  Configure MongoDB replication set

  What is a replication set? Replication sets are additional replicas of data, the process of synchronizing data across multiple servers, providing redundancy and increasing data availability, through which hardware failures and interrupted services can be restored. The advantages of replication sets are as follows: making data more secure and high data availability (24 *

  2022-06-01 22:06:34 Views: 244
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  Implementation of similar Zhihu website

  Query the list of questions: from the data returned by this method, you can see that there is an answer_number field, that is, how many answers to this question are currently 1. First query questions, and then query the number of answers, this is the most common way, the code is as follows: the advantage of this method is simple and direct

  2022-06-01 22:05:43 Views: 295
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  Knowing these steps, it is no longer a problem to change the MSSQL ndf file size to 0 KB.

  First, the failure of the MSSQL ndf file describes that some storage of the user is corrupted, resulting in a database crash. By reorganizing the storage and restoring the database files, it was found that four ndf files changed in size to 0 KB. The database size is about 80TB. There are 1223 files in the database and the database is generated every 10 days

  2022-06-01 22:05:32 Views: 292
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  Learn these skills to keep Redis big key problems away from you.

  As an early entrant in the domestic third-party push market, GE Tweet focuses on providing efficient and stable push services for developers. After 9 years of accumulation and development, it has served hundreds of thousands of APP, including Sina and Didi. Because our push business requires high concurrency and speed, we choose high performance.

  2022-06-01 22:05:32 Views: 267