sqlite dinstincÎÊÌâ
ΪʲôÓÃselect name,distinct phone from phone_book¾Í˵Óï·¨´íÎó£¬
ÓÃselect distinct phone,name from phone_book¾Í¿ÉÒÔ£¿
ûÓÐΪʲô distinct ÊÇ select µÄÐÞÊηû£¬Ö»ÄÜÔÚ select ºóÖ±½Óд distinct
Èç¹ûÎÒÏëµÃµ½µÄ½á¹ûÊÇname²»Öظ´»òphone²»Öظ´¸ÃÔõô°ì£¿ÄѵÀ²»Ö§³Ö£¿
û¿´Ã÷°×£¬½¨ÒéÄã¾ÙÀý˵Ã÷¡£
Ïà¹ØÎÊ´ð£º
string ConStr="data source=C:\ceshi.db;verson=3;password=123456";
SQLiteConnection MyConnection = new SQLiteConnection(ConStr);
try
{ ......
sqliteÖÐÓÐûÓжÔÓÚÊý¾Ý¿â´óС½øÐйÜÀíµÄ½Ó¿Ú£¿±ÈÈ磬´´½¨Êý¾Ý¿âµÄʱºòÖ¸¶¨Êý¾Ý¿â´óС£¬¶ÔÊý¾Ý¿â½øÐвÙ×÷ºó²ì¿´¸ÃÊý¾Ý¿âÊ£ÓàµÄ¿ÉʹÓõĿռä´óСµÈ¡£×î½ü¿´ÁËÒ»ÏÂsqliteµÄÏà¹Ø½Ó¿Ú£¬ÍøÉÏÒ²ËÑË÷ÁËÏ£¬Ã»ÓÐÕÒµ½ÓÐÓõÄ×Ê ......
ÎÒÏëÒª½«sqliteÊý¾Ý¿âÖеÄÊý¾Ý£¬ÒÔÊ÷¿Ø¼þµÄÐÎʽ¶Á³ö£¬²¢ÇÒÏÔʾÔÚ¶Ô»°¿òÉÏÃ棬²»ÖªµÀÔõô×ö£¬À´Çë½Ìһϡ£
ps£º¿´µ½ÓÐʹÓÃÊ÷¿Ø¼þºÍaccessµÄ£¬ÀïÃæÓÐÊý¾Ý¿âÒýÇæÀ´Á¬½ÓÊý¾Ý¿âºÍ³ÌÐò£¬ÎÒ²»ÖªµÀSQLiteÈçºÎÓë³ÌÐòÁ¬½ÓÆð ......
// ´ò¿ªÊý¾Ý¿â
SQLiteConnection dconn = new System.Data.SQLite.SQLiteConnection();
dconn.ConnectionString = @"Data Source=D:\db.sdb";
dconn.Open();
SQLiteCommand dcmd = dconn.Crea ......
ÎÒÖªµÀ´ó¼Ò¶¼ËµÊÇ64λϵͳϲ»ÄÜÓÃ32λµÄsyste.sqlite.dll¡£Õâ¸öÎÒÒѾ»»ÁË
VS2008ÖÐÔËÐж¼Ã»ÎÊÌ⣨ͬһϵͳÏ£©
Ò»·Åµ½IISÖоͱ¨´í£º
δÄܼÓÔØÎļþ»ò³ÌÐò¼¯¡°System.Data.SQLite¡±»òËüµÄijһ¸öÒÀÀµÏî¡£ÊÔͼ¼ÓÔظ ......