sqlite 过得的废话 就不细说了
接下来，主要讲 安装sqlite 然后写一个demo ，然后再shell 命令操作sqlite
#安装 sqlite 程序 以及开发包 我的linux 环境是centos
sudo yum install sqlite-3.7.17-8.el7_7.1.x86_64 sqlite-devel#输入 sqlite3 测试是否安装成功 libsqlite3.so /usr/lib64/libsqlite3.so
sqlite3find / -name libsqlite3.so
#include <iostream>
#include <sqlite3.h>
using namespace std;static int callback(void *NotUsed, int argc, char **argv, char **azColName)
{int i;for(i=0; i<argc; i++){cout<<azColName[i]<<" = " << (argv[i] ? argv[i] : "NULL")<<"\n";}cout<<"\n";return 0;
}int main()
{const int STATEMENTS = 8;sqlite3 *db;char *zErrMsg = 0;const char *pSQL[STATEMENTS];int rc;rc = sqlite3_open("familyGuy.db", &db);if( rc ){cout<<"Can't open database: "<<sqlite3_errmsg(db)<<"\n";} else{cout<<"Open database successfully\n\n";}pSQL[0] = "create table myTable (FirstName varchar(30), LastName varchar(30), Age smallint, Hometown varchar(30), Job varchar(30))";pSQL[1] = "insert into myTable (FirstName, LastName, Age, Hometown, Job) values ('Peter', 'Griffin', 41, 'Quahog', 'Brewery')";pSQL[2] = "insert into myTable (FirstName, LastName, Age, Hometown, Job) values ('Lois', 'Griffin', 40, 'Newport', 'Piano Teacher')";pSQL[3] = "insert into myTable (FirstName, LastName, Age, Hometown, Job) values ('Joseph', 'Swanson', 39, 'Quahog', 'Police Officer')";pSQL[4] = "insert into myTable (FirstName, LastName, Age, Hometown, Job) values ('Glenn', 'Quagmire', 41, 'Quahog', 'Pilot')";pSQL[5] = "select * from myTable";pSQL[6] = "delete from myTable"; pSQL[7] = "drop table myTable";for(int i = 0; i < STATEMENTS; i++){rc = sqlite3_exec(db, pSQL[i], callback, 0, &zErrMsg);if( rc!=SQLITE_OK ){cout<<"SQL error: "<<sqlite3_errmsg(db)<<"\n";sqlite3_free(zErrMsg);break;}}sqlite3_close(db);return 0;
}
g++ test.cpp -o test -std=c++11 -lsqlite3./test#####注意这是一个创（机制是先找再创） 库familyGuy.db 建表myTable
#####插入四条记录，然后打印所有该表所有内容最后删表
demoe 的链接在下方
c++demo
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然后在shell 中查看数据库
###首先要进入 你创建demo 的路径 因为数据库是在该目录常见的 但要###注意 /root 路径下也会有该数据库
####接着进入 sqlite 数据库
sqlite3 familyGuy.db####查看都有哪些数据库
.database####接着查看表
select * from myTable;####再做简单的筛选
select * from myTable where FirstName = 'Peter';###############################
注意 sql 语法 和mysql oracle 都是一样的
都是关系型数据库
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