NAV: SLTechnology News&Howtos > Database >

• 

  Oracle Undo tablespace restore (no backup)

  Oracle Undo tablespace recovery system environment: operating system: RedHat EL55Oracle: Oracle 11gR2Oracle 9i, undo tablespace is used to manage undo

  2022-06-01 18:33:53 Views: 238
• 

  [MongoDB Learning Notes 17] query of MongoDB: array query in find

  Db.post.find () {"_ id": ObjectId ("54a530c3ff0df3732bac1681"), "id": 2, "name": "joe", "age": 3

  2022-06-01 18:33:53 Views: 235
• 

  A dataguad exception of 10g RAC

  When restarting a dataguad today, the MRP process could not be started. The error is as follows: Wed Mar 9 15:32:55 2016ALTER DATABASE recover managed standby datab

  2022-06-01 18:33:53 Views: 233
• 

  Automatic initialization of SQL Server 2017 AlwaysOn AG (3)

  Create an availability group with automatic seed settings. Creating an endpoint requires a mirror endpoint to communicate with each copy, and the default TCP port is 5022. CREATE ENDPOINT [Hadr_endpoint] STATE=STARTEDAS

  2022-06-01 18:33:52 Views: 280
• 

  RF- connects to the database

  * * Settings * * Force Tags DataLibrary DatabaseLibrary*** Test Cases * * 1, coonectDatabase [Documentat

  2022-06-01 18:33:43 Views: 274
• 

  Other typical execution plans in Oracle

  In the previous article, I wrote about the common execution plans in Oracle. You can refer to the article: http://hbxztc.blog.51cto.com/1587495/1901416, which introduces some other typical execution plans. 1.

  2022-06-01 18:33:43 Views: 248
• 

  Remember an ORA-00210,ORA-00202,ORA-27086 error in the process of building DG.

  ORA-00210: cannot open the specified control fileORA-00202: control file:'/ u01/app/oracle/oradata/o

  2022-06-01 18:33:43 Views: 217
• 

  Sql server 2008 R2 cannot log in to localho

  When I installed sql server 2008 on the windows server 2008 R2 Enerprise server, I named the instance: sa instance ID is sa. Log in to the localhost server and report continuously after installation.

  2022-06-01 18:33:41 Views: 229
• 

  Mysql creates databases and tables and adds table data

  First of all, on the basis of successfully installing Mysql, go to the cmd window and log in to our mysql management system. Login method: mysql-u username-p password if Welcome to... appears Waiting for a lot of English instructions means that you have successfully entered the mys.

  2022-06-01 18:33:35 Views: 301
• 

  Four characteristics and isolation levels of database transactions

  Database transaction (Database Transaction) refers to a series of operations performed as a single logical unit of work, either all or none of them. For a logical unit of work to become a transaction, it must satisfy the four characteristics of the transaction (ACID). The original

  2022-06-01 18:33:34 Views: 261
• 

  [Mo Jin original] Oracle clone empty database to build exactly the same database without data

  Background due to the amount of data brought by the development of platform data, the response time of the platform is slowed down. The technical team decided to enable the database partitioning feature! The goal is partitioned by date and month, and the function of automatic monthly partition of late data is realized to solve the problem of procrastination of system response caused by data accumulation. Plan 1. Add Sql with partition function.

  2022-06-01 18:33:34 Views: 264
• 

  MySQL can only use the leftmost part of the defined index

  Experimental environment: MySQL 5.7.171. The table structure is as follows. Establish the primary key mysql > show create table txtx;+-+- in the id,name,tx column.

  2022-06-01 18:33:34 Views: 302
• 

  Official description of the new version of ShardingSphere

  ShardingSphere-distributed database middle tier official website address: http://shardingsphere.io/ documentation support overview ShardingSphere is an open source project for distributed database middleware solutions, package

  2022-06-01 18:33:19 Views: 247
• 

  In-depth Analysis of Spring Architecture and Design principle-Operation and implementation of Database

  Let's start with Spring JDBC about Spring JDBC, although many applications now use Hibernate or other ORM tools directly. But JDBC is still very basic after all, in which JdbcTemplate is what we often do.

  2022-06-01 18:33:18 Views: 206
• 

  Python-sqlalchemy

  From sqlalchemy import create_enginefrom sqlalchemy.ext.declarative import declarative_basefrom sqla

  2022-06-01 18:33:17 Views: 246
• 

  Redis Learning 2Murray-single Node installation configuration (script)

  Vi redisposed singles install.shrunken Universe Bash # install redisyum install gcc gcc-c++-ymkdir-p / data/usr/src

  2022-06-01 18:33:17 Views: 248
• 

  Migrate mysql from phpstudy to Linux

  The purpose of the project is to migrate the data from mysql 5.5.53 built with phpstudy in the original windows environment to the new host Linux environment: CentOS release 7.4 (Final)

  2022-06-01 18:33:17 Views: 202
• 

  Account Management of MySQL

  Account management 1 create an account: example 1: create an account zwj with all permissions on all databases mysql > grant all on *. * to 'zwj'@'192.168.154.180';Query O

  2022-06-01 18:33:16 Views: 251
• 

  Implementation of LNMP by rpm packet

  Rpm package lnmpnginx- host: 172.16.40.99 php murfpm-host: 172.16.40.11 MariaDB-host: 172.16.40.88 one. Install, configure nginx- host: 1

  2022-06-01 18:33:16 Views: 270
• 

  Freeswitch uses external directory instead of disk xml files

  As we all know, FreeSWITCH defaults to xml files from disk to determine which users are in the system. For a conventional information system, user information is stored in the database. The following is a very simple demonstration of how users in FreeSWITCH can use database annotations

  2022-06-01 18:33:15 Views: 245