凹凸国产熟女精品视频app,大地资源免费更新在线视频下载

Article Tags

All
web3.0
- All
- NoSQL database
- Memcached
- cloudera
- memcache
Backend Development
- All
- PHP Tutorial
- Python Tutorial
- Golang
- XML/RSS Tutorial
- C#.Net Tutorial
- C++
- NoSQL database
- Memcached
- cloudera
- memcache
Web Front-end
Database
- All
- Mysql Tutorial
- navicat
- SQL
- Redis
- phpMyAdmin
- Oracle
- MongoDB
- NoSQL database
- Memcached
- cloudera
- memcache
Operation and Maintenance
- All
- Mac OS
- Linux Operation and Maintenance
- Apache
- Nginx
- CentOS
- Docker
- NoSQL database
- Memcached
- cloudera
- memcache
Development Tools
- All
- VSCode
- sublime
- notepad
- git
- composer
- NoSQL database
- Memcached
- cloudera
- memcache
PHP Framework
- All
- Laravel
- YII
- NoSQL database
- Memcached
- cloudera
- memcache
Common Problem
- All
- NoSQL database
- Memcached
- cloudera
- memcache
Other
- All
- IIS
- SEO
- Premiere
- NoSQL database
- Memcached
- cloudera
- memcache
Tech
- All
- AI
- It Industry
- NoSQL database
- Memcached
- cloudera
- memcache
CMS Tutorial
- All
- WordPress
- NoSQL database
- Memcached
- cloudera
- memcache
Java
- All
- javaTutorial
- NoSQL database
- Memcached
- cloudera
- memcache
System Tutorial
- All
- Windows Series
- LINUX
- MAC
- NoSQL database
- Memcached
- cloudera
- memcache
Computer Tutorials
Hardware Tutorial
Mobile Tutorial
- All
- Mobile News
- iPhone
- Android Phone
- NoSQL database
- Memcached
- cloudera
- memcache
Software Tutorial
Mobile Game Tutorial

Home

Technical Articles

Database

How to manage time zones in MySQL?

Use TIMESTAMP data types and configure time zone support to effectively manage time zones in MySQL. Specific practices include: prioritizing TIMESTAMP over DATETIME to achieve automatic time zone conversion, setting the server time zone to UTC to avoid daylight saving time problems, loading the time zone table through mysql_tzinfo_to_sql to support named time zones, setting the session time zone according to user location to automatically adjust the time, using the CONVERT_TZ() function for explicit time zone conversion, and always storing timestamps in the UTC time zone to ensure data consistency, and ultimately ensuring the accuracy of time applications across regions.

Sep 03, 2025 am 02:09 AM

Navicat vs Dbeaver: which is best?

Navicatisbetterforapolished,user-friendlyexperience,whileDBeaverexcelsincustomizationandsupportingawiderangeofdatabases.Navicatoffersasleekinterfaceandrobustfeaturesforeasydatabasemanagement,whereasDBeaver,beingopen-source,providesflexibilityandexten

Sep 03, 2025 am 02:05 AM

How to get the database name you are connected to in SQL?

MySQL:SELECTDATABASE();returnsthecurrentdatabasenameorNULLifnoneisselected.2.PostgreSQL:SELECTcurrent_database();returnsthenameofthecurrentlyconnecteddatabase.3.SQLServer:SELECTDB_NAME();directlyreturnsthecurrentdatabasename.4.Oracle:SELECTnameFROMv$

Sep 03, 2025 am 01:57 AM

How to set up an alias for phpMyAdmin in Nginx

To set the Nginx alias of phpMyAdmin, first make sure that its installation path is correct, and the common path is /usr/share/phpmyadmin/; then add the location/admin block in the server block of the Nginx configuration file, use alias to point to the phpMyAdmin directory, and configure nested location blocks for the PHP file, explicitly set fastcgi_pass and SCRIPT_FILENAME; then test and overload the Nginx configuration; finally access through http://your-domain.com/admin, optionally add IP restriction or HTTP authentication to enhance security. 1. Confirm

Sep 03, 2025 am 01:41 AM

nginx

How to analyze a query execution plan in SQL

Toanalyzeaqueryexecutionplaneffectively,startbyunderstandingthatitrevealshowthedatabaseexecutesaquery,includingoperationslikescans,seeks,joins,andsorts;usetoolslikeSQLServerManagementStudio,EXPLAINinPostgreSQL,orEXPLAINPLANinOracletoviewestimatedorac

Sep 03, 2025 am 01:31 AM

How to join multiple tables in SQL

To join multiple tables, you need to use multiple JOIN operations in the FROM clause and specify the association conditions. For example, connect three or more tables in sequence based on foreign key relationships through INNERJOIN or LEFTJOIN to ensure that each JOIN has a clear ON condition to avoid Cartesian product. At the same time, use table alias to improve readability, and ultimately achieve cross-table data integration. This method can be extended to any number of association tables, and the desired result can be correctly returned as long as the logic is clear and the connection order is reasonable.

Sep 03, 2025 am 01:23 AM

How to Securely Connect to a Remote MongoDB Instance

SecureremoteMongoDBaccessrequiresenablingauthenticationwithstrongcredentials,configuringTLS/SSLencryptionfordataintransit,restrictingnetworkaccessviafirewallsandbindIPsettings,andusingSSHtunnelingorVPNstopreventpublicexposure,ensuringprotectionagains

Sep 03, 2025 am 01:20 AM

How to insert if not exists in MySQL (UPSERT)

UseINSERTIGNOREtoinsertarowonlyifitdoesn'texist,silentlyskippingduplicatesbasedonauniqueconstraint;2.UseINSERT...ONDUPLICATEKEYUPDATEtoupsert,insertingifnotexistsorupdatingifitdoes;3.AvoidREPLACEINTOasitdeletesandreinserts,potentiallycausingdatalosso

Sep 03, 2025 am 12:47 AM

mysql Upsert

How to import connection settings?

The key to importing connection settings is to confirm whether the software supports import function and choose the appropriate method according to the situation. First, check whether there is an "import" option in the settings or preferences of the software, or check the official documents to confirm whether import is supported; second, if the software supports the export function, you can first export the configuration file and load the file through the import option on the new device, which is suitable for tools such as DBeaver and Termius; finally, if there is no clear import and export option, you can manually copy the configuration file to the corresponding path of the target device, pay attention to version compatibility and back up the original configuration before operation.

Sep 03, 2025 am 12:45 AM

How to perform a boolean full-text search in MySQL

To perform Boolean full text search, you must first create a FULLTEXT index, and then use MATCH()...AGAINST() with INBOOLEANMODE and Boolean operators; 1. Make sure that FULLTEXT index has been created for the search column, which can be implemented through ALTERTABLE or CREATETABLE; 2. Use MATCH()...AGAINST('searchterms'INBOOLEANMODE) syntax to perform searches; 3. Use (must include), - (must exclude), "(exact phrase), * (prefix wildcard), () (group), ~ (optional downright) and other operators to accurately control the results; 4

Sep 03, 2025 am 12:26 AM

How does Pub/Sub compare to Redis Streams for messaging?

The choice of Pub/Sub or RedisStreams depends on the usage scenario. 1. If message persistence and replay is required, RedisStreams should be selected, which supports message storage and recovery; 2. If consumer groups need to implement distributed processing, RedisStreams provides built-in support; 3. If low latency is pursued and message loss can be tolerated, Pub/Sub is lighter and more efficient; 4. If you need to ensure reliable message delivery and structured consumption, RedisStreams is a better choice. Both have their own trade-offs and are determined based on application needs.

Sep 03, 2025 am 12:23 AM

pub/sub