member_id openID mp_id openID openID ** mp_id openID ** sql SELECT * FROM `score_log` WHERE `mp_id` = gh_1d3037ae656c AND `openid` = o5NHFsy-PUHxY7G_h_S8UscpKVg8 ...
1. I am a rookie, in the process of learning springboot to do annotation mode of the full table fuzzy query, the result set of the query is always empty, but the sql statement in the navicat test can normally find the data, please answer the doubt, than...
mybatis generator generates a model of all the databases in the mysql server, and I only need to generate one of them. The configuration is configured as follows: https: www.jianshu.com p 5c8... the difference is that the mysql server in the tutor...
if there are three fields in the table: id, date, gender if sometimes the query is (id, date, gender) , sometimes the query is (id, gender) is it possible to create a (id, date) joint index because gender is not highly differentiated does not need to...
Mysql: I have previously read a saying that inconsistent sorting of items after order by will lead to the invalidation of federated indexes, such as order by a ASC, b DESC, c DESC an ascending order, b descending order, sorting inconsistency, inde...
Business description: Table sor contains about 150 million rows of data, including card access data. Table sta contains about 4 million rows of data and contains statistics for table sor. now you need to update a column in Table An according to Table...
first introduce the environment Linode ubuntu16.04,apapche,php7.3,mariadb current dilemma in my website folder, strictly speaking, there are three kinds of projects, one is e-commerce, one is blog, and the other is front-end and background . But now...
Why can mysql save time with varchar and still make time comparisons? What is the principle? Y-m-d H:i:s like this ...
the database currently has 1 million data (it has been running for about half a month) the following sentence takes 6 seconds to run (1 million results for where alone), and both user_id and time are indexed ...
I use native php5.6 to write blog want to click on the column, appear under this column of the article, but how to appear all the articles. sources of topics and their own ideas mysqli took out all the columns but couldn t use them. related code...
problem description We have changed IPV4 to IPV6 network packet protocol, but when we visit, we say that URL is illegal, because IPV6 access is a http: [222:222:222:22]:80 index.html, expanded in square brackets like this. the environmental backgr...
flask is used in python. There is a page that uses xlrd to parse the data timeout of an 80,000 excel. Is there any way not to time out? the code is as follows @app.route( import ) def import_xlsx(): -sharp conn = pymysql.connect(host= 192...
ke_orderske_userinfoid ...
problem description the address of the dbeaver test connection is different from the server address entered the same is true for new connections, without using proxies, and it is useless to restart Dafa. I don t know what s going on ...
1. Tomcat on a running server, add a B item, and report "Access denied for user root @ localhost (using password: YES) ". run locally and connect to the server s database at the same time. Put the code on the server and report an error. 2. Tom...
grouped by date user_id to get date user_id 2019-01-08 1518910 2019-01-08 1543358 2019-01-08 1543358 2019-01-08 1563574 2019-01-08 1563574 2019-01-08 1562939 2019-01-08 1560924 2019-01-08 1524686 2019-01-08 1554495 2019-01-08 1539485 2019-01...
manually built php+apache+mysql+phpmyadmin development environment, it is possible to test the connection between PHPinfo and MySQL after building, but it is impossible to open phpmyadmin when typing localhost phpmyadmin index.php in the web page. The h...
in the mysql in query, the content of id is 1Magne2 and id 3 can be queried, but the demand is like this id1 appears twice, but to sum the sum of one of the fields when mysql queries out the id1, when using in, the repeated 1 is filtered out, so the ...
after using SET @ @ GLOBAL.sql_mode= "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION " wdcp Why can t strict mode be turned off? ...
how to deal with fields with unique indexes in the case of sub-tables? there is no guarantee of constraints when adding new ones ...
< H2 > I want to change the red box in the picture to how many days ago < H2 > ...
Why do two list-to-np.array, datatypes of exactly the same type become object, and the other floatable! print(len(X_l)) -sharp 2013 print(len(X_s)) -sharp 1980 print(X_l[0].dtype) -sharp float64 print(X_s[0].dtype) -sharp float64 print(X_l[0].shape) ...
< H2 > I believe that many people will have the same needs as me < H2 > the directory is as follows Project node_modules package.json subproject node_modules package.json I cd to the first-level directory of the project then npm insta...
http: gallery.echartsjs.com . Thank you all ...
Button is not defined auto button = Button::crea ...