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  YII2 database CURD operation

  / / 1. Simple query $admin=Admin::model ()-> findAll ($condition,$params); $admin=Admin::model ()-> findAll ("usern"

  2022-06-01 09:26:56 Views: 272
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  Classic cases of Systemstate Dump Analysis (part two)

  The preface follows the previous issue: (reading method of the previous issue: reply '007' after following the official account of "Zhong Yi'an Tu") the analysis of library cache lock in 4.3.4SSD follows the previous issue: at this stage, the seemingly clueless problems in front seem to be sorted out, a large number of cur

  2022-06-01 09:26:56 Views: 220
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  Redis data type

  The Redis data type Redis supports five data types: string (string), hash (hash), list (list), set (collection) and zset (sorted set: ordered collection). String (string) strin

  2022-06-01 09:26:55 Views: 224
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  Classification and algorithm of MySQL Lock

  Locks in MySQL can be divided into two categories: table, page-level and row-level locks. Table page-level locks are intentional locks with IX,IS, which are generally used before row-level locks, while row-level locks are traditional S and X locks. The compatibility features of these locks are as follows: ISIXSXIS compatibility, IX compatibility and incompatibility.

  2022-06-01 09:26:55 Views: 250
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  Oracle not available

  When using the shut immediate used by dba in oracle, the result is as shown in the figure: you can no longer operate oracle. To solve this problem, follow these steps to restart oracle: then go back to sqlplus.

  2022-06-01 09:26:49 Views: 228
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  The complete recommendation of MySQL enterprise interview questions that will be met by Linux operation and maintenance staff

  Linux operation and maintenance will be the MySQL enterprise interview questions Daquan recommendation (1) basic written test command inspection 1. Open the MySQL service / etc/init.d/mysqld startservice mysqld startsystemctl

  2022-06-01 09:26:49 Views: 263
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  Authority Management and data recovery of SQL Server

  1. SQL Server permission setting SQL Server is different from other servers in that it usually stores operation, development, marketing and other important data, among which a large amount of data is also confidential. Therefore, mastering the permission setting of SQL Server is a necessary key skill for DBA. 1 、 S

  2022-06-01 09:26:19 Views: 257
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  DB2 database backup, cold backup, hot backup, incremental backup experiment

  Create a backup directory mkdir archivelogmkdir backup2. To build a library, use that template library db2star3. Watch-making, db2 connect to sampledb2 "create table test

  2022-06-01 09:26:12 Views: 292
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  Record the pits during the installation and use of the Oracle database on Windows

  1. Installation of OracleOracle software is free, you can go to the official website to download the corresponding installation package. But if you use it for commercial purposes, you need to buy License. The official website is available for a variety of platforms, both 32-bit and 64-bit. If you download it in Windows, you will usually download two files.

  2022-06-01 09:26:12 Views: 256
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  Database recovery of Mssql Enterprise practice

  The purpose of a complete database restore is to restore the entire database. The entire database was offline during the restore. Before any part of the database becomes online, all data must be restored to the same point, that is, all parts of the database are at the same point in time and there are no uncommitted transactions. In complete recovery

  2022-06-01 09:25:42 Views: 228
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  Amoeba realizes the separation of database read and write

  Environment and software version: system: CentOS Linux release 7.2.1511 (Core) mysql:Server version: 5.6.33Amoeba:amoeba-mysql-3.

  2022-06-01 09:25:24 Views: 250
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  A preliminary study of Oracle Wallet

  A preliminary study on Oracle Wallet. What is WalletA datastructure used to store and manage security credentials for an indi?

  2022-06-01 09:25:22 Views: 292
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  Mysql external connection case

  # case: query the boyfriend information of the goddess whose number is > 3, list the details if any, and fill in the SELECT bo.*FROM boys boRIGHT OUTER JOIN beauty bON b with null

  2022-06-01 09:25:11 Views: 256
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  Centos 6 oracle 11G DB install

  Due to business migration, oracle DB needs to be redeployed. This article is for the deployment record only. The deployment document mainly refers to the official document http://docs.oracle.com/cd/E11882_01/install.112/e47689/toc.

  2022-06-01 09:25:11 Views: 298
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  HBase installation

  -hbase.rootdir hdfs://hadoop-senior.huiyunltd.com:8020/hbase hbase.cl

  2022-06-01 09:25:10 Views: 289
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  [MongoDB Learning Notes 27] TTL Index of MongoDB

  The TTL index (time-to-live index) allows you to set a timeout for each document, after which the document will be deleted. You can create an TTL index by specifying the expireAfterSecs option in ensureIndex

  2022-06-01 09:24:57 Views: 263
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  SSIS Execute SQL Task usage

  The Execute Sql Task component is a very useful Control Flow Task that can execute SQL statements directly, such as data update commands (update,delete,insert) or sel

  2022-06-01 09:24:57 Views: 234
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  MongoDB 2.6 compatibility change-db.collection.aggregate () change

  MongoDB 2.6compatibility change-- db.collection.aggregate () changes description db.collection.aggregate () method in mongo shell, the result set is returned by default

  2022-06-01 09:24:57 Views: 205
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  Mysql locates Next-Key Lock in one minute. How many points do you need?

  Connection and thread view connection information show processlist+----+-

  2022-06-01 09:24:57 Views: 258
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  When does industry customer 12c automatically collect statistics?

  Each industry has its own characteristics, such as the financial industry, which runs at around 10:00 every night, while automatic statistics collection default Monday to Friday at 10:00, lasting 4 hours to collect statistics, Saturday and Sunday at 6 o'clock every day for 20 hours to collect statistics. Obviously we should design one.

  2022-06-01 09:24:57 Views: 209