NAV: SLTechnology News&Howtos > Database >

• 

  Oracle creates tablespaces and users

  Step 1: create a temporary tablespace (

  2022-06-01 07:34:08 Views: 222
• 

  Mysql 5.1 master-master replication cluster 1062 out of Sync error

  Mysql 5.1 master-master replication cluster 1062 Asynchronous error 1062 error reported from slave library, master- slave replication stopped. Start

  2022-06-01 07:34:08 Views: 249
• 

  MySQL 5.7semi-synchronous mechanism

  The so-called semi-synchronous mechanism, as long as the master node confirms that at least one slave node has received the thing, it can return the information of successful operation to the client. The master node does not even have to wait for the slave node to successfully execute the thing, as long as there is at least one slave.

  2022-06-01 07:34:08 Views: 298
• 

  PostgreSQL DBA (6)-SeqScan vs IndexScan vs Bit...

  This section describes the three scan types of data tables in PostgreSQL, namely, sequential scan SeqScan, index scan IndexScan, and bitmap heap scan BitmapHeapScan. 1. Brief introduction selection rate = the number of tuples after conditional filtering / before conditional filtering

  2022-06-01 07:33:59 Views: 207
• 

  Impdp Import Datagram error ORA-01652

  Oracle 11.2.0.4.0Processing object type TABLE_EXPORT/TABLE/TABLE_DATAORA-39171: Job is experiencing

  2022-06-01 07:33:59 Views: 227
• 

  Oracle Cluster Time Management

  Cluster Time Synchronization Service (CTSS) can detect time synchronization problems between nodes in a cluster. CTSS is installed as part of Oracle CLusterware. If it detects

  2022-06-01 07:33:59 Views: 260
• 

  ORACLE CheckpointQueue and incremental checkpoint

  The primary purpose of ORACLE CheckpointQueue and incremental checkpoint checkpoints is to refresh dirty blocks in a manner that has minimal impact on the daily operation of the database. Dirty blocks continue to produce, how to refresh the dirty blocks to the disk? Before 8i, Or

  2022-06-01 07:33:59 Views: 252
• 

  Discussion on Bank data Security Protection Technology from the event of "Weimeng deletion"

  Preface "Weimeng deletion" incident has been a whole week. Weimeng officially announced last night: "as of 8: 00 p.m. on March 1, with the assistance of the Tencent Cloud team, after 7-24 hours of efforts, the data has been fully recovered."... the system launch exercise will be conducted at 2: 00 a.m. on March 2 and will be launched on March 3.

  2022-06-01 07:33:59 Views: 212
• 

  A case study of the people's and Social Affairs Department of a province

  1. Background Overview 1. Background Overview A provincial department of human resources and social security, as the leading body of human resources management in a province, is responsible for the development planning of the province's human resources market and the policy formulation of human resources mobility, as well as the establishment of a unified and standardized human resources market to promote the rational flow and effective allocation of human resources.

  2022-06-01 07:33:55 Views: 252
• 

  Overview of Redis master-slave replication process

  Redis includes master and slave nodes: the master node provides read and write services, and the slave node, as the data backup of the master, synchronizes all the data from the master node. Under the master-slave replication architecture, the default Slave is read-only, and will be reported if written.

  2022-06-01 07:33:55 Views: 229
• 

  Affinity Photo for mac (professional image repair software) 1.8.4 Chinese registered version

  Affinity Photo for mac is a professional image correction software for Mac. In addition to the usual dodge, burn, clone, patch, flaw and red-eye tools, you will also find an almost magical repair brush, frequency separation, and a full set of built-in liquefaction functions. Make

  2022-06-01 07:33:52 Views: 237
• 

  Detailed explanation of Redis persistence methods RDB and AOF

  Preface Redis provides two ways of data storage, namely: cache-only & & persistence;cache-only is used with caching service, the data will disappear after the server is terminated, and there will be no "data recovery" in this mode.

  2022-06-01 07:33:48 Views: 257
• 

  DDL Operation of mysql-data Table

  After we have created the database, we can create the corresponding data table, so the creation table also belongs to the DDL data definition level, so let's learn about it. 1. Create data table creation instructions: create table tb_name [Table options] We found instructions and numbers

  2022-06-01 07:33:48 Views: 210
• 

  Tencent Zhu Hua: exploration of the next Wind Direction in the data Center

  Introduction: Zhu Hua, Director of Tencent data Center Technology Development Center, Vice Chairman of data Center Technical Committee of China Engineering Construction Standardization Association, head of data Center working Group of Open data Center Committee of China Communications Standardization Association, won the 2018 data Center Youth awarded by China Engineering Construction Standardization Association

  2022-06-01 07:33:36 Views: 241
• 

  Using T-SQL to realize multi-table query

  Type of table join: 1. Inner join: the most commonly used join method, which returns only rows that match between two data sets, joining rows within the overlap of two intersecting data sets.   example: using inline in tables An and B

  2022-06-01 07:33:30 Views: 221
• 

  Use Mtools to analyze MongoDB log files

  Mtools introduces that mtools is a set of scripts used to parse and filter MongoDB log files. Mtools includes the following tools: mlogfilter can cut log files according to time, filter slow queries, etc. Mloginfo returns log text

  2022-06-01 07:33:30 Views: 285
• 

  LAMP pure source compilation and installation log

  Lamp framework installation and experience skills (source code installation benefits. List of related software: # ls / soft/ | grep-E "* .gz | * .zip | * .xz | * .bz2" apr

  2022-06-01 07:33:30 Views: 231
• 

  MySQL database promotion-triggers

  Day06 MySQL Database Promotion-triggers I. Overview of triggers: what are triggers? What's the use? Can bring us what kind of methods to operate the database this is here to learn one by one to tell you. The trigger principle is similar to the trigger principle, when you click to trigger

  2022-06-01 07:33:30 Views: 201
• 

  Oracle exports a table

  Exp user name / password @ orcl_rac file=d:\ daochu.dmp tables= (table name); user name: the user name to which the table belongs D disk can create a new daochu.dmp

  2022-06-01 07:33:18 Views: 222
• 

  SQL Server 2016 official version installation (super many pictures)

  The official version of Microsoft database SQL Server 2016 was released in June 2016. due to the recent busy work, I have not had time to write the installation process on my blog and share it with you. I have been used to using the English version, so the version and screenshots are in English. Cut the crap.

  2022-06-01 07:33:18 Views: 208