Asksearch_php.cn

Community Learn Tools Library Leisure

English

Popular searches：
PHP
MySQL
jquery
HTML
CSS

linux - epoll + non-blocking IO receiving data problem

epoll + non-blocking io model, the edge trigger I set up. Now the client is a browser, and the form uploads a 2M file. The server monitors the readable event. I use recv to obtain it. Why is the data received incomplete and -1 returned? , errno = EAGAIN. {code...} cur_recv is large enough, difficult...

PHP中文网 2017-05-27 17:44:36

Convert file to data stream

Hello heroes, I want to convert the excel file into a data stream and then send it to the interface. .NET uses this class to implement FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read); What method does PHP use to implement it? grateful.

聂顺顺 2022-10-25 09:17:59

A brief discussion on the design and ideas of workflow engine data tables

We all know that workflow engines play a decisive role in system development, so how to design your own workflow engine well? Today we will simply talk about flow engine design from the perspective of database design. Next, we will talk to you about the database design of Tpflow workflow engine. Wor...

蝈蝈 2019-02-18 18:36:01

The traffic between PHP+Mysql website front-end and data server is extremely high

PHP + MYsql front-end and database are separated. Now the communication traffic between the front-end and the database server is very large, and the load on the MYsql database server is too high (up to 398%). The login of front-end users is also very slow. The number of people online at the same tim...

hello 2018-10-21 20:17:20

java - How to decompress the data in some individual data blocks of a gzip file when streaming it?

Scenario description: {Code...} The problem now is that because what is received is not a complete compressed file but a block of binary data, the received data cannot be decompressed due to incomplete information. Now I want to implement such a function: First, The received stream data is decompres...

PHP中文网 2017-06-12 09:25:31

Database data

Could you please provide the database data?

虾米 2021-01-12 10:59:30

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

No data is displayed in the data table

Why is the data added in phpmyadmin not displayed in the data table?

吥离吥弃 2018-02-27 10:12:47

data sheet

Why doesn't this come with a data sheet? Is there a data sheet? Can you give me a copy?

嘀嘀 2020-11-03 13:45:35

php data acquisition?

php data acquisition? php data acquisition? php data acquisition?

Mr.V 2017-07-27 21:56:28

Migrate data from one database to another

I need to migrate data from one database to another, both on the same local system. The table and column names are different and I don't have to migrate all the columns from the old database, so Select* doesn't work for me. INSERTINTONewDatabase.table1(Column1,Column2);SELECToldDatabase.table1(colum...

P粉509383150 2023-08-24 09:58:47

node.js - When resquest.js pipe data stream downloads a file, how to automatically obtain the file suffix name and save it? In which step should I add it?

I want to get the suffix name of this link before fs.createWriteStream and then pipe it into this data stream to save the file. I have tried the Promise method, and then there is a complete response and cannot be written to the data stream. And fs.writeFile I have also tried the method, writing...

阿神 2017-05-16 13:28:40

In MySQL database, how to copy one database to another database

A test environment database and a development environment database; the test environment database has been modified, but now the modified data needs to be restored to the original data, so how to copy the development environment database to the test environment database

P粉582593074 2023-08-10 10:34:20

Caching reporting data in the same transaction database vs using a data warehouse

We have a SaaS solution where each tenant has its own MySQL database. Now I'm designing a dashboard for this SaaS system and it requires some analytical charts. To obtain the data required for the chart, we can query each tenant's transaction data in real time from its database. and get updated grap...

P粉511749537 2024-02-26 19:20:23

Database file import

How to create your own database, and how to import the teach_manger.sql data table file into your database; how to create your own database, and how to import the teach_manger.sql data table file into your database; how to create your own database, And how to import the teach_manger.sql data table f...

缘 2019-03-27 11:01:41

thinkphp returns database data all as strings

I use mamp for local development. There is no problem with the data retrieved from the database. The database is defined as a numeric type and the returned value is also a numeric type. For example: id: 35, but when I deployed it to the server, I used centos+nginx+php. At this time, I found that all...

星星蓝蓝 2019-04-08 16:59:40

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

php - sql server2012 database data loss

The timer program reads data from redis every 5 minutes for table storage. Later, it was discovered that there were multiple tables with data loss from April 27 to May 3 as shown in the picture. What are the reasons for data loss? The code for joining the team is as follows:

过去多啦不再A梦 2017-05-24 11:31:01

database

Link to database using php

移动用户-6464727 2020-04-18 23:32:55

database

Connect to the database without specifying a data table? I have three tables in it. How does it know which one to use? Is it because of this reason that the effect cannot come out?

铁力瓦尔良 2021-05-18 15:01:43