demand is roughly as above: if you have two tables, table order and table item in which table order can match the data of multiple tables item but some of the data in table item have prices that are zero and some are not zero now you need to output...
as mentioned, the environment Linux, executes the .sql file. The purpose of the sql file is to set up several databases and several tables under the database. Part of the code is as follows: -- -- Current Database: `API_Descriptions` -- CREATE DATABAS...
TO_CHAR(CAST(DECODE(COUNT(*),0,0,SUM(CASE WHEN pd.score >=(select qualiscore from tb_agent_crmscallappeal where appealid= 1 ) THEN 1 ELSE 0 END) COUNT(*)*100) AS NUMBER(10,2)), 990.00 ) || % AS qualifi, ...
now I can only set apache, to restart every hour in cron, but this method treats the symptoms rather than the root of the problem. I am Ubuntu 16 + apache2 + php7.0 + mysql5.7 after running for a period of time, mysql hung up, and restart prompted in...
problem description there is a sensor that inputs data once in 5 seconds. The sensor table has a createTime field data is too much to extract by time. Users can customize the event interval,-sharp {time} can be passed the environmental background o...
problem description there are two tables in the database, namely a and b , with the following structure: 2created_at2 : the previous attempt is to use MySQL s UNION to merge the data of the two tables, then as a subquery, and finally grou...
if ( $nickname != ) { $where .= " and CONCAT(a.nickname,a.mobile, a.card_number) like %" . $nickname . "% "; } and $where .= "and (a.nickname like %{$nickname}% or a.mobile like %{$nickname}% or a.card_number ...
as the title ...
err: = db.Where ( "id =? ", id). First (& activity) .Error {"id": 30, "name": null} the name field of the database is null, but the name in & activity will become " ", how to keep it still null type Activity struct { Id ...
when dealing with the data of a mysql table, it is encountered that the content stored in a field is as follows: a:2:{ i:0; a:2:{i:0;i:0;i:1;s:9:"";} i:1; a:2:{i:0;i:0;i:1;s:9:"";} } I want to use sql to put forwa...
I have a node program that queries the local database every hour and then queries the intranet database again. only appears read ECONNRESET when querying the intranet database. use npm library knex + mysql2 to connect to the database, knex ...
err: = db.Where ( "id =? ", id). First (& activity) .Error {"id": 30, "name": null} the name field of the database is null, but the name in & activity will become " ", how to keep it still null type Activity struct { Id ...
when dealing with the data of a mysql table, it is encountered that the content stored in a field is as follows: a:2:{ i:0; a:2:{i:0;i:0;i:1;s:9:"";} i:1; a:2:{i:0;i:0;i:1;s:9:"";} } I want to use sql to put forwa...
wrote a class to test the link MySQL: JDBC URL static final String JDBC_DRIVER = "com.mysql.jdbc.Driver"; static final String DB_URL = "jdbc:mysql: localhost:3306 dbx?useSSL=false"; static final String USER = "root&quo...
I have a node program that queries the local database every hour and then queries the intranet database again. only appears read ECONNRESET when querying the intranet database. use npm library knex + mysql2 to connect to the database, knex ...
I have a node program that queries the local database every hour and then queries the intranet database again. only appears read ECONNRESET when querying the intranet database. use npm library knex + mysql2 to connect to the database, knex ...
this seems to be a grammatical error, but I still can t see what s wrong . ...
I have a node program that queries the local database every hour and then queries the intranet database again. only appears read ECONNRESET when querying the intranet database. use npm library knex + mysql2 to connect to the database, knex ...
this seems to be a grammatical error, but I still can t see what s wrong . ...
I have a node program that queries the local database every hour and then queries the intranet database again. only appears read ECONNRESET when querying the intranet database. use npm library knex + mysql2 to connect to the database, knex ...
I want to implement a 3D version of Snake through babylonJS or THREE.js. where, when the snake turns, I want it to turn in a way similar to the image below. In other words, I want the snake to turn more smoothly, just like a vehicle turn in real life...
use vue as the project, and use node as the middle layer to deal with the data returned by the background interface. Online is how to deploy node-related code. For example, when you are local, you want to start node and how to handle it on the server. Do...
problem description node accepts the request to query the database with a value and returns an error write after end related codes console.log(startTime,id,endTime) var express = require( express ); var app = express(); var mysql = require...
how to classify and manage logs under the framework of CI? do you want to split the log into different files for different businesses? does the CI framework support it? now they all use the default log_message . Thank you. ...
1. The prompt to run the tsc compilation command in vscode is as follows: 2.nodejsvscode Please give us a lot of advice, thank you. ...