FredGrit

摘要： cannot open source file "stddef.h" (dependency of "chrono"). Please run the 'Select IntelliSense Configuration...' command to locate your system heade 阅读全文

摘要： #include <iostream> void ignore_exceptions() { for(int i=-10;i<10;i++) { std::cout<<"i:"<<i<<", 100/i="<<100/i<<std::endl; } std::cout<<"Finished in " 阅读全文

摘要： sudo apt install libmysqlcppconn-dev #include <algorithm> #include <atomic> #include <barrier> #include <bitset> #include <chrono> #include <ctime> #i 阅读全文

摘要： mysql 5.7.16 installer download url for once click installation https://cdn.mysql.com/archives/mysql-installer/mysql-installer-community-5.7.16.0.msi 阅读全文

摘要： 1.Ubuntu install vscode; sudo snap install --classic codecode --version; 2.update upgrable upgrade sudo apt update; sudo apt list --upgradable; sudo a 阅读全文

摘要： sudo systemctl stop mysql; sudo apt purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*; sudo rm -rf /etc/mysql /var/ 阅读全文

摘要： //create procedure statementdelimiter $$ use db $$ drop procedure if exists insertIntoT1Table; create procedure insertIntoT1Table(in num int) begin de 阅读全文

摘要： use db; 'CREATE TABLE `t1` ( `id` bigint NOT NULL AUTO_INCREMENT, `name` varchar(40) NOT NULL DEFAULT '''', `author` varchar(40) NOT NULL DEFAULT '''' 阅读全文

摘要： //install libuuid-devel sudo yum install libuuid libuuid-devel #include <iostream> #include <stdio.h> #include <uuid/uuid.h> char *uuid_value=(char*)m 阅读全文

摘要： Functions can't modify anything and must have at least one parameter. They also have to return a result. Stored procedures don't need a parameter, may 阅读全文