SQLite 粗劣内容

SQLite 的官网

http://addons.mozillan.org/firefox/addon/sqlite-manager/

http://www.sqlite.org

sqlite3 *sqlite = nil;

NSString *filePath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/data.file" ];

//打开数据库

int result  = sqlite3_open([filePath  UTF8String], &sqlite);

if (result !=SQLITE_OK) {

NSLog(@"创建失败！！！");

return ;

}

//创建表的SQL语句

NSString *sql = @"CREATE TABLE IF NOT EXISTS UserTable(userName text PRIMARY KEY ,password text,email text)";

//执行SQL语句

char *error;

result = sqlite3_exec(sqlite, [sql  UTF8String], NULL, NULL, &error);

if (result != SQLITE_OK) {

NSLog(@"创建数据库失败：%s",error);

return ;

}

//插如入一条数据

//INSERT OR REPLACE INTO UserTable (userName,password,email) VALUES(?,?,?);

//更新一条数据

//UPDATE UserTable set password = ‘‘ where userName = ‘‘;

//查询数据

//SELECT userName ,password,eamil FROM UserTable where username = ‘‘;

//删除数据

// DELETE FROM UserTable WHERE username =‘‘;

//关闭数据库

sqlite3_close(sqlite);