Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

sqlite ÎÞ·¨¸ù¾ÝGuid ²éѯÊý¾Ý

GUID£º0C3EDEE8-B14F-4220-8D64-990E00D84AF7

SELECT fldGuid, fldName, fldUserGuid from table
Äܲéѯ fldUserGuid Ϊ£º0C3EDEE8-B14F-4220-8D64-990E00D84AF7 µÄÊý¾ÝÒ»Ìõ

SELECT fldGuid, fldName, fldUserGuid from table WHERE (fldUserGuid = '0C3EDEE8-B14F-4220-8D64-990E00D84AF7')

²éѯ½á¹û£º0

ÎÒsql ÄÄÀïд´íÁËô

Êý¾Ý¿âΪ£ºsqlite
ûÓÐÈËÖªµÀô£¿


£¿


ÌùÄãµÄ´úÂëÉÏÀ´¡£¹À¼ÆÊÇÄã´úÂëû¶Ô¡£
{{


Ïà¹ØÎÊ´ð£º

Çó¸ßÊÖÖ¸µã£¬Ò»¸öPDA³ÌÐò£¬sqliteÊý¾Ý¿âÁ¬½Ó²»ÉÏ£¬¼±

string ConStr="data source=C:\ceshi.db;verson=3;password=123456";
  SQLiteConnection MyConnection = new SQLiteConnection(ConStr);
  try
  { ......

¡¾ÈçºÎ²é¿´SqliteÊý¾Ý¿âÖÐÓжàÉÙÕűí[¶¥ÕßÓзÖ]

SqlServerÖÐÕâÑùͳ¼Æ:

select name from sysobjects where xtype='U'
ÒªÖªµÀ×ÜÊýµÄ»°¾Í¼òµ¥ÁË£º
select count(*) from sysobjects where xtype='U'

OracleÖÐÕâÑù²éѯ£º
Sele ......

sqlite¿ØÖÆÊý¾Ý¿â´óС

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 ......

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 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ