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  • Ubuntu下wxWidgets学生信息管理sqlite3(C++)

    main.cxx

    #include <sqlite3.h> #include <cstdlib> #include <iostream> #include <iomanip> using namespace std; int main() { sqlite3* file; int flag; flag = sqlite3_open("./stu.db", &file);
    if(SQLITE_OK != flag) { cout<<"Database connect failed!"<<endl; exit(-1); } cout<<"Database connect successes!"<<endl;
    char** r; int row, col; char* errmsg; string sql = "select * from stu"; flag = sqlite3_get_table(file, sql.c_str(), &r, &row, &col, &errmsg); if(SQLITE_OK == flag) { cout<<"Statement executes sucesses!"<<endl;  int i, j;
    for(i = 0; i <= row; i++) { for(j = 0; j < col; j++) { cout<<r[i*col+j]<<' '; } cout<<endl; }
    } sqlite3_close(file); return 0; }
    makefile

    all: main.o g++ main.o -o t.exe -lsqlite3 main.o: main.cxx g++ -c main.cxx -o main.o
    .PHONY:clean
    clean: rm main.o t.exe

     

     

    1.先在线安装sqlite3,试用一下命令安装
    ubuntu@ubuntu-virtual-machine:~$ sudo apt-get install sqlite3
    2.安装成功后测试会出现
    ubuntu@ubuntu-virtual-machine:~$ sqlite3
    SQLite version 3.7.9 2011-11-01 00:52:41
    Enter ".help" for instructions
    Enter SQL statements terminated with a ";"
    sqlite> .exit
    3.查找sqlite3的路径
    ubuntu@ubuntu-virtual-machine:~$ which sqlite3
    /usr/bin/sqlite3
    ubuntu@ubuntu-virtual-machine:~$ ls
    core              OSlab1    Public                           Videos
    Desktop           OSlab2    Qt                               vmwaretools
    Documents         OSlab3    sqlite-amalgamation-3080403      wx
    Downloads         OSlab4    sqlite-amalgamation-3080403.zip  wx3.0
    examples.desktop  OSlab5    StuMana                          wxlab
    Music             Pictures  Templates
    4.具体sqlite3操作的实例
    ubuntu@ubuntu-virtual-machine:~$ mkdir mydb
    ubuntu@ubuntu-virtual-machine:~$ cd mydb
    ubuntu@ubuntu-virtual-machine:~/mydb$ ls
    ubuntu@ubuntu-virtual-machine:~/mydb$ sqlite3 stu.db
    SQLite version 3.7.9 2011-11-01 00:52:41
    Enter ".help" for instructions
    Enter SQL statements terminated with a ";"
    sqlite> create table stu(sno int primary key, sname text not null, sage int);
    sqlite> insert into stu(1, 'Lisi', 20);
    Error: near "1": syntax error
    sqlite> insert into stu values(1, 'lisi', 20);
    sqlite> insert into stu values(2, 'zhangsan', 18);
    sqlite> select * from stu;
    1|lisi|20
    2|zhangsan|18
    sqlite> .exit
    ubuntu@ubuntu-virtual-machine:~/mydb$ ls
    stu.db
    6.记着在CodeBlocks的link 那里添加 libsqlite3.so和libsqlite3.so.0的路径(usr/local/lib)




    5.具体sqlite3操作的实例
    ubuntu@ubuntu-virtual-machine:~$ cd StuMana
    ubuntu@ubuntu-virtual-machine:~/StuMana$ sqlite3 stuinfo.db
    SQLite version 3.7.9 2011-11-01 00:52:41
    Enter ".help" for instructions
    Enter SQL statements terminated with a ";"
    sqlite> create table stuinfo (id char(10),name char(15) not null,dormitoryid char(20) not null,phone char(11),qq char(13));
    sqlite> insert into stuinfo values('1115115247','LiYa','15#501','15530061772','614100932');
    sqlite> insert into stuinfo values('1115115276','ZhangAihua','15#424','18330000036','627100056');
    sqlite> select * from stuinfo;
    1115115247|LiYa|15#501|15500761772|614100932
    1115115276|ZhangAihua|15#424|18330000036|627100056
    sqlite> .exit
    ubuntu@ubuntu-virtual-machine:~/StuMana$ ls
    bin           stuinfo.db      StuMana.depend   WxWizFrame.fbp
    GUIFrame.cpp  StuManaApp.cpp  StuMana.layout   WxWizFrame.fbp.bak
    GUIFrame.h    StuManaApp.h    StuManaMain.cpp
    obj           StuMana.cbp     StuManaMain.h
    ubuntu@ubuntu-virtual-machine:~/StuMana$ 
    6.在CodeBlocks的link 那里添加 libsqlite3.so和libsqlite3.so.0的路径(usr/local/lib)

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  • 原文地址:https://www.cnblogs.com/zhangaihua/p/3755442.html
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