mysql - Why does database read-write separation improve database performance?

Please see the blog above for why read-write separation can improve database performance. According to database common sense, read-write separation can indeed improve database performance, but you don't know if you understand its underlying principles. For example, one reads and one writes, but the ...

PHPz 2017-05-24 11:34:46 0  2  1315

Database data

Could you please provide the database data?

虾米 2021-01-12 10:59:30 0  0  1131

Configuration database

There is nothing to create a new database configuration file.

闫宇川。 2019-05-23 22:27:14 0  1  1450

database file

Can the teacher provide database file download? Greatful

Alliswell 2018-08-29 17:02:52 0  1  1311

Database design - mysql database integration

For two mysql libraries with the same partial tables, I think I can specify the corresponding relationship between the two database tables and fields to synthesize a new database. Is there any tool that can be used to achieve this?

phpcn_u1582 2017-05-18 10:53:24 0  1  691

How to delete database

How to delete database

姐姐 2018-07-27 16:21:25 0  1  1351

Problems with PHP storage database efficiency

Program 1: for($i=0;$<100;$++){Connect to the database; execute select to advance a value; disconnect from the database; connect to the database; execute updata once to store data; disconnect from the database;} Program execution It takes about 1.5-2 seconds. Program 2: Connect to the database; f...

八哥 2023-09-22 22:46:18 0  0  885

Database Connectivity

Excuse me, I wrote according to your code, but an error is reported when accessing. Is there no need to fill in the database connection account and password here?

Mike （指南帮科技～博帮企服） 2019-06-02 00:10:14 0  2  1310

Please help, the database insertion operation failed.

The code is as follows: $con = new mysqli($servername, $username, $password, $dbname);if ($con->connect_error) { die("Database connection failed: " . $conn->connect_error);}echo " Database connection successful!";for($i = 0

长天一色 2018-09-28 09:36:00 0  8  1813

Importing database failed

Database error CREATE TABLE IF NOT EXISTS `cs_admin` ( `id` mediumint( 5 ) NOT NULL AUTO_INCREMENT , `username` varchar( 20 ) NOT NULL ,

揽星辰入梦 2020-04-07 11:42:25 0  2  1213

Database configuration is invalid

The settings in application/database.php are valid. According to the video tutorial, the database configuration set in config/database.php at the same level as application is invalid. What's going on?

P粉332880121 2022-04-20 20:04:50 0  0  1253

php - Onethink prompts that the database configuration is not defined

When logging in at the backend, it always prompts that the database configuration is not defined, but the database configurations of Application/User/Conf/config.php and Application/Common/Conf/config.php are correct. The frontend can also add, delete, modify and check the database. Only I can't log...

伊谢尔伦 2017-06-26 10:49:09 0  2  868

MySQL database transaction processing encountered a small problem

The database data looked like this before running. The results of running the following code are as follows: The database data becomes: I can’t see where there is a problem. Is there something wrong with my usage? Hope you can give me some advice! ! !

寻觅 beyond 2017-09-23 21:36:35 0  1  1203

Can you provide the database table file?

Can you provide the database table file?

张帆 2022-05-26 21:54:09 0  3  929

Can the database model be instantiated in the controller, right?

Can the database model be instantiated in the controller, right?

︿ 2019-03-15 10:44:57 0  2  1231

How to build cross database query in PHP?

In our last episode (How to Build Cross-Database Queries in MySQL), I learned how to build cross-database queries in MySQL. This worked great, but when our hero tried to use this newfound knowledge in PHP, he found that his best friend failed. I looked into PHP's mysql_select_db. This seems to mean ...

P粉197639753 2023-10-22 11:40:00 0  2  691

Database design - MySQL database integration of two systems

1. There are currently systems A and B, and B is the upgraded system of A; 2. The structure of most database tables in the two versions of the system mysql database is the same, and the data of A can be directly integrated into another system B; but there is still Some tables have different structur...

巴扎黑 2017-05-18 10:54:00 0  3  859

What is the default database name prefix in the php toolbox?

What is the default database name prefix in the php toolbox or where to view it. The following is the copied content information database name: root Which database should WordPress be installed to? Username: root Your MySQL username Password root...and its password Database host: 127.0.0.1 If localh...

彭离元 2019-07-08 02:23:41 0  1  1197

Backup of PostgreSQL database design - no data

I'm trying to find a way to backup my database design without including the data stored in the database. Actually, one might say I want a file containing all "CREATEScripts" in the database. Ideally, this file can be used to recreate the database (without the data of course). How to avoid ...

P粉098417223 2023-08-24 14:29:36 0  1  638

PHP loop reading data from database problem

As shown in the figure below, why can't the program read database data?

世界只因有你 2017-06-29 10:08:05 0  4  1082