Install and start mongodb in linux

One go to the directory decompress the downloaded package lamp @ QA-clgserver $ tar-zxvfmongodb.tgz 2 after installation view: [lamp@QA-clgmongodb-linux-x86_64-2.4.6] $ cdbin [lamp @ QA-clgbin] $

Error ora-02063/ora-01017 reported in earlier versions using dblink to connect to 11G versions

A home, a carrier phone to, create dblink error ora-02063ora-01017 on this BUG, encountered not once, ORACLE for the BUG description below Bug6738104:

Database Import and Export instance

Import and Export instances: enter all the following commands in the DOS window! For details about how to create a user, refer to blog. csdn. netgateway6143articledetails41212823 I. Data export: 1. Export the database TEST completely, and export the

Internet connection Intranet mssql

Reference address: www. nat123.comPages _ 8_266.jsp: (1) install and enable nat123 on the Intranet, add ing, and use other application types. The Intranet address port is the Intranet MSSQL address port, which is customized by the Internet address

[MongoDB] use shell in Mongodb to achieve dynamic interaction with javascript

This is a bit omitted in previous articles about using mongodb shell to execute scripts. Now I will add a supplement to this blog. I. Input a script file in the command line to define a javasciprt file, name: script1.js, content: print (iamalbert

PuTTY connection to Linux Server frequent disconnection Solution

After remotely connecting to the server, PuTTY often prompts "Softwarecausedconnectionabort" when disconnected, and often loses the connection in a short time. Solution: Step 1: Set Server 1. Modify the etcsshsshd. config file on the server, set

MySQL character set parameters

The following articles mainly describe all the related parameters set in the MySQL Character Set UTF8. After installation, we have set the MySQL character set (the best combination with PHP, set it to utf8. The specific operations are as follows.

Management Configuration of user roles and permissions

In the actual production process, roles are widely used. What is a role? A role is a set of permissions that can be authorized to users or roles to control user access and behavior to objects. When creating a user, do you want to authorize the DBA

The agent slave Database Host cannot be found when the slave database is created in EM12c.

Symptom: When you use EM12cR4 to create a slave database, you cannot find the slave Database Host, but the slave Database Host already exists in the host list, in addition, the agent on the slave Database Host has been installed and the status is

In-depth introduction to MySQL two-way replication technology

Setting up MySQL Data Synchronization (one-way and two-way) as a result of the company's business needs, we need to synchronize data between China Netcom and China Telecom, so we have done a two-way MySQL synchronization. Write down the process and

Oracle reported EXP-0006: internal inconsistency Error

Yesterday again on the server newly installed Oracle database with exp, imp export library, always reported ldquo; EXP-0006: internal inconsistency error rdquo;, so on the Internet Baidu, taste Yesterday again on the server newly installed Oracle

Create and modify temporary tablespace of Oralce

A temporary tablespace is a disk space used to store the temporary data generated when you execute the orderby lamp statement for sorting or summarizing. By default, all users A temporary tablespace is a disk space used to store the temporary data

MySQL error: masterandslavehaveequalMySQLserverUUIDs

MySQL error: masterandslavehaveequalMySQLserverUUIDs MySQL error: master and slave have equal MySQL server UUIDs Homepage → Database Technology Background:Read News MySQL error: master and slave have equal MySQL server

Performance impact of Localprefixedindex and Localnonprefixedindex on select statements

Before comparing the effects of the two indexes on the select statement, you must first understand what is Localprefixedindex and what is Localnonprefixedindex. Actually, these two types Before comparing the effects of the two indexes on the select

Python accesses the MySQL database and supports addition, deletion, modification, and query.

I want to know more about accessing the MySQL database. However, since I recently learned Python, I will use Python to implement it below. This includes creating databases. I want to know more about accessing the MySQL database. However, since I

The system reports the "INS-41112" error when installing the grid for rac.

Original Works are from the blog of deep blue. You are welcome to repost them. Please note the following source during reprinting; otherwise, you will be held legally liable for copyright. Deep Blue blog: blog. csdn. nethuangyanlongarticledetails4078

Ssdb master-slave synchronous replication configuration steps

The SSDB configuration file is a hierarchical key-value static configuration file that uses a TAB indent to represent hierarchical relationships. the line starting with # Is a comment. ssdb follows the redis protocol and provides fast read/write

I. mongodb sharding: add and remove shards on multiple simulated nodes in win7

This article describes how to simulate mongo sharding on a win7 computer. If you have multiple servers, you can deploy each mongo on a single computer. We will configure three mongo shards, three configuration servers, and one Routing Server.

Group counting similar to the group counting function of groupby

Previously, my colleague sent a statement to implement a simple function, similar to the group count function of groupby. Because the where condition has the like condition, it cannot be implemented using groupby. SELECTa. n0, B. n1, c. n2, d. n3, e.

Twemproxy proxy Key-Value database SSDB for Distributed Data Storage

SSDB is a high-performance NoSQL database that supports a wide range of data structures. It is used to replace Redis or store billions of List data with Redis. It has been applied by many well-known enterprises. We use SSDB to convert the

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