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  Say GTID-Failover and Scaleout

  How to expand a read-only instance in GTID-based replication? Here we use the mysqldump tool to backup the data on the Master node. Note a key parameter:-- set-gtid-purged [= name], which represents the backup

  2022-06-01 14:17:20 Views: 256
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  Scrapy crawler instance grabs Douban group information and saves it to mongodb

  This framework has been followed for a long time, but it wasn't until recently that I took a closer look at it. I used the scrapy0.24 version to make a finished product to feel the convenience of this framework. During this time, I will slowly sort out my thoughts and update all the knowledge I have recently learned about this framework to my blog. Most

  2022-06-01 14:17:20 Views: 239
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  Install Oracle RAC (RS/6000) on IBM AIX

  Purpose this document provides readers with hands-on instructions on how to install a cluster, install RAC, and start a cluster database on IBM AIX HACMP/ES (CRM) 4.4.x. For other explanations or information on any of these steps, please refer to the document closure.

  2022-06-01 14:17:20 Views: 220
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  MYSQL master-slave replication deployment process

  Environment preparation: deploy one master, one slave and two servers to achieve master-slave replication. The master database needs to be enabled for binlog, and the Server-id of the master library and slave database should be different from the master library: [root@db01 ~] # hostname-I 10.0.0.51 172.16.

  2022-06-01 14:17:19 Views: 301
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  Oracle12C-RMAN table-level recovery

  There are two main types of Oracle database backups: logical and physical. Each backup type has its own advantages and disadvantages. In previous versions, it was not feasible to restore tables or partitions with existing physical backups. A logical backup is required to restore a specific object. In Oracle12c

  2022-06-01 14:17:19 Views: 242
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  Build master-slave replication and read-write separation of mysql

  Set up mysql master-slave replication and read-write separation +-+ (write) +-+ |

  2022-06-01 14:17:19 Views: 242
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  Overview of HADOOP Biosphere knowledge

  one。 Hadoop Ecological profile Hadoop is a distributed system infrastructure developed by the Apache Foundation. Users can develop distributed programs without knowing the underlying details of the distribution. Make full use of the power of the cluster for high-speed operation and storage. Reliable and high

  2022-06-01 14:17:16 Views: 251
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  Announced MongoDB 3.0

  Https://www.mongodb.com/blog/post/announcing-mongodb-30?_ga=1.228612565.899046223.1418033210

  2022-06-01 14:17:12 Views: 211
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  RMAN diagnostic information collection

  RMAN diagnostic information collection [ID 1337285.1] applies to: Oracle Server-Personal Edition-Version: 10.1.0.2 to 11.

  2022-06-01 14:17:06 Views: 298
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  Zabbix monitoring template changes when MongoDB is upgraded to 3.0 or higher

  An application scenario describes that some MongoDB database instances on the line have been upgraded to 3.0. check the logs of Zabbix server. The MongoDB monitoring of the monitoring host continuously reports an error 6697VZ 20160519VOR 222116.590 error.

  2022-06-01 14:17:06 Views: 324
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  Navicat for mysql client operation mysql is very slow problem

  First of all, check the mysql error log: the name of the cd / usr/local/mysql/var/ tail VM_79_224_centos.err log may be different. Depending on the actual situation, open it and see the following similar error: 110617

  2022-06-01 14:17:06 Views: 266
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  DDC reconfigure to connect to the database

  Look for connectionstring in the registry to modify the database connection string and modify the database connection address. Restart all citrix services using the following command to see if the connectionstring of monitor and logging is positive

  2022-06-01 14:17:05 Views: 269
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  Oracle compiling user invalid object

  When migrating data using IMPDP/IMP tools, warnings about invalid objects are often prompted and need to be handled in the following ways. 1. Query the invalid object su-oraclesqlplus / as sysdbaSQL > select for the specified user

  2022-06-01 14:17:05 Views: 243
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  SQL SERVER column name modification

  After creating the table, it is found that the name of a column in the table is misspelled and needs to be modified: SQL:exec sp_rename 'table.name1',' name2'

  2022-06-01 14:17:05 Views: 288
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  SQL LIMIT and DESC

  LIMIT accepts two arguments, the first parameter represents the offset of the first returned row (the initial row offset is 0), the second parameter represents the maximum number of returned rows, and a value of-1 returns from the current to the end. If only one parameter is given, it represents the maximum number of rows returned. DESC refers to the descending order of the returned results.

  2022-06-01 14:17:05 Views: 282
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  Mysql Learning Notes (3)-basic SQL sentences

  [text] main contents: 1. Common commands of cmd command line 2, data definition language (DDL) 3, data manipulation language (DML) 4, data query language (DRL) 5, transaction control language (TCL) 1, common commands of cmd command line: when we use MySQL 5

  2022-06-01 14:17:04 Views: 280
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  Oracle 5-minute or 30-minute segmentation method

  In the recent project, there was a customer requirement for data at all time points of the day, divided into a total number of users every 5 minutes. The data scenario is: the online time data of all users in a game (of course, a simple sum, there may be duplicate data). But the point here is Oracle S.

  2022-06-01 14:17:04 Views: 274
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  Oracle- fetches the year, month and day in the date field in the table

  1. Select to_char (paymadedate,'yyyy-mm-dd') from table name

  2022-06-01 14:17:04 Views: 286
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  Spring jdbctemplate operates the database

  More Database

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    What are the differences between the storage engines commonly used in MySQL?

    This article is to share with you about how common storage engines in MySQL differ from each other. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look. The four storage engines commonly used in MySQL are: MyISAM storage

    2022-06-01 03:50:57Details

  • 

    The extraction time of bid evaluation experts, how long in advance is appropriate?

    Article 22 of the http://www.zhaobiao.cn/ measures for the Administration of experts on Evaluation of Government Procurement (hereinafter referred to as the measures) stipulates that "in principle, the time for the selection of evaluation experts shall be half a day or one day before the bid opening, and shall not exceed two days under special circumstances.

    2022-06-01 06:18:08Details

  • 

    The strongest snail has unlimited resources to buy the cracked version so that you can play continuously.

    The strongest snail unlimited resources in-house cracked version is a very popular leisure adventure nurturance mobile game recently. The painting style of the game is very strange, with a lot of interesting copy content challenges, players are like watching the story while playing the game, very interesting. In the game, you will change.

    2022-06-01 04:48:35Details

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    What are the differences in the implementation of delete table operation in MySQL

    This article is to share with you about the differences in the implementation of table deletion in MySQL. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. This paper mainly talks about three operations of deleting tables in mysql, delete statement and tru.

    2022-05-31 23:37:44Details

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