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java - Spring operation database displays garbled Chinese characters?

Operating system: ubuntuIDE:idea Database:Mysql When I use php to operate the database, there is no problem with Chinese display, and Chinese can be displayed normally: But when I am learning spring, when I operate the database, question marks will appear in Chinese, and it cannot be displayed norma...

我想大声告诉你 2017-05-16 13:29:37

Solve the problem of operation error when pythonanywhere connects to MySQL database

I have finished my django project and I want to test it on PythonAnywhere, everything was fine until the mysql database connection showed an error to which I have paid subscription. An operation error occurred on /home/ (1044, "Access to database 'almx98' for user 'almx98'@'%' is denied") ...

P粉459440991 2024-03-31 22:43:19

The Linux system does not support PHP operations to access the database. Can you please advise on other solutions?

The database of Windows computer software is accessible. If you want to share data, upload the database mdb file to the web server through php, and then php reads the mdb database into html. When the web server is windows, the test is normal. The Linux system does not support PHP operations to acces...

forever 2017-10-31 14:35:35

Does the carousel deletion operation only delete the data in the database, but not the pictures in uploads?

Does the carousel deletion operation only delete the data in the database, but which corresponding picture in uploads is not deleted?

sui 2017-11-29 16:43:03

Why can't the database be operated normally when uploaded to a virtual host?

Why can’t the database be operated normally when uploaded to a virtual host?

笑该动人 2018-07-31 16:51:55

I refresh the PHP page directly and can delete the numeric fields in the MYSQL database, but cannot delete the letter or URL fields?

I directly refresh the PHP page and can delete the numeric fields in the MYSQL database, but I cannot delete the letter or URL fields.

我就是我 2018-05-14 11:49:58

javascript - After editing the js page, I want to perform some operations on the data traversed from the database. For example, if the gender is male, the font will turn red.

After editing the js page, you want to perform some judgment operations on the data traversed from the database. For example, if the gender is male, the font will turn red. Move the mouse over the name to see his profile. Note: The profile exists in the database.

大家讲道理 2017-05-19 10:29:23

java - Online application, what should be done if the database operation fails?

I would like to ask for advice on online application. If the database operation (insert, update, delete) fails, what should be the processing logic? Return errors to the user? No processing? Executing once? still?

某草草 2017-06-28 09:23:37

Updates to multiple databases - mysql

I'm new to mysql. I have a list of 10 databases containing the same table structure. The same table needs to be updated for each database. Is there an option to do it through phpmyadmin without selecting each database? Or is there a function similar to: USELIKEgc%?

P粉129731808 2023-08-27 11:15:21

When inserting data encapsulated by the PHP class, the insertion is always unsuccessful and false is returned;

<?php //Database operation class class Model{ Private $host; //Database address Private $user; //Database username Private $pwd; /

A _ Ｑ _ｉ_ 2021-10-13 10:21:27

mysqlsh dump and load full schema

I want to use mysqlsh to do the following: dump the complete schema of a given database (not just tables, but functions, triggers and everything related to this database schema, same as mysqldump-RDATABASE>DATABASE.sql) and put this The full schema is loaded into the brand new database I just cre...

P粉662802882 2024-03-26 15:02:15

TP5 provides it. What is the purpose of encapsulation here?

tp5 provides database operation classes. What is the purpose of encapsulation here?

rebirth 2019-03-05 20:42:43

Will migrate BLOB fields in MySQL table to BLOB fields in SQLite table

I have a table in database mysql containing one column of type BLOB. I want to export to sqlite database with similar structure but in sqlite database the target table throws too long bytes error In database mysql the column BLOB belongs to an image I need help please

P粉585541766 2024-04-01 11:14:54

Page error, please try again later

Teacher, I followed your operation step by step. When I encapsulated the database access class, the web page prompted: Page error. Please try again later! I assign simple numbers to $res and it can be displayed normally.

奋斗 2018-12-04 22:49:33

mysql - How to make the sql of the java project compatible with the sql syntax of multiple databases?

How can SQL statements in Java projects be compatible with multiple databases? The project belongs to the product category and it is not confirmed which database the user uses. We use db2 during development, but if we encounter an oracle database, sql will fail. I don't know how to achieve compatibi...

PHPz 2017-05-18 10:45:51

PDO's automatic submission function is enabled on MySQL with autocommit turned off

I've just been assigned a codebase that uses traditional PHP and the library works without using PDO. The connection is made using the following mode: //Connect to the MySQL database $con = new mysqli($host, $user, $password, $database);//Check the connection if ($con->connect_error) {die(\"...

P粉011912640 2023-08-08 15:23:46

promise.all mongoose operates database - Stack Overflow

Use Promise.all([p1, p2]) to operate two promise functions. Both functions use mongoose internally to operate the database. If p1 is rejected and p2 is resolved. My question is, p2 has actually performed an operation on the database, is that so, or...

曾经蜡笔没有小新 2017-06-15 09:22:14

java - How to solve the problem of mixed collation of mysql;

I use Spring JPA to operate the database mysql. When I first created the database, I set default-character-set=utf8mb4default-collation=utf8mb4_general_ci, but after running it, I still reported an error: java.sql.SQLException: Illegal mix of collati...

ringa_lee 2017-06-06 09:52:28

springboot - spring boot redis save hash object using custom id problem

Related information about the spring boot used. The version of spring boot currently used is 1.5.2.RELEASE. The database operation uses spring-boot-starter-data-jpa. The redis uses spring-boot-starter-data-redis database operation. I am using spring boot...

阿神 2017-05-16 13:20:12

Display json type data in blade

Displaying json type data in blade I have a table in my database which stores data and one of the data is of json type, everything is going fine but when I want to display these json in blade the problem starts which is My json data type [![Enter image description here][1]][1] In my blade I use php ...

P粉064448449 2024-03-22 12:05:15