SQL Server 2000 Java¿ª·¢Öе±Ç°Èͮ򵀫¦Àí
1¡¢ÔÚÊý¾Ý¿â½¨±íµÄʱºò×Ö¶ÎÖ±½ÓÉèÖÃΪDATETIMEÀàÐÍ£»
2¡¢Ö´ÐвåÈëµÄʱºòʹÓÃÈçÏÂÓï¾ä£º
PreparedStatement pstmt = conn.prepareStatement("insert into guestbook(gst_user,gst_title,gst_content,gst_ip,gst_time) values(?,?,?,?,getdate())");
3¡¢Òª°ÑÈÕÆÚ´ÓÊý¾Ý¿âÖÐÈ¡³ö£¬Ö´ÐÐÈçÏÂÓï¾ä£º
Timestamp ts = rs.getTimestamp("gst_time");
long lms = ts.getTime();
Date date = new Date(lms);
Time time = new Time(lms);
×îÖվͿÉÒÔÖ±½ÓʹÓÃdateºÍtimeÁË¡£
out.println("ÁôÑÔʱ¼ä£º" + date + " " + time);
Ïà¹ØÎĵµ£º
1. socketͨÐÅ£ºÓпͻ§¶ËºÍ·þÎñ¶ËµÄsocket´úÂë¡£
2. ¶àỊ̈߳º¿Í»§¶ËºÍ·þÎñ¶Ë¸÷ÓÃÒ»Ï̷߳¢ËÍÐÅÏ¢£»·þÎñ¶ËÁíÓÐÒ»¼àÌýỊ̈߳¬ÓÃÓڰѳ¬Ê±µÄÐÅϢɾ³ý¡£
ÕâÀïÓ¦Óõ½ÁËͬ²½£¬Ê¹Á½¸öÏ߳̿ÉÒÔ²Ù×÷ͬһ¸ömap¡£
´úÂ룺£¨ÀàÈ«ÔÚͬһ¸ö°üÄÚ£©
server¶Ë£º
Java´úÂë < typ ......
¡¡¡¡JavaÓïÑÔµÄÊäÈëÊä³ö¹¦ÄÜÊÇÊ®·ÖÇ¿´ó¶øÁé»îµÄ£¬ÃÀÖв»×ãµÄÊÇ¿´ÉÏÈ¥ÊäÈëÊä³öµÄ´úÂë²¢²»ÊǺܼò½à£¬ÒòΪÄãÍùÍùÐèÒª°ü×°Ðí¶à²»Í¬µÄ¶ÔÏó¡£ÔÚJavaÀà¿âÖУ¬IO²¿·ÖµÄÄÚÈÝÊǺÜÅÓ´óµÄ£¬ÒòΪËüÉæ¼°µÄÁìÓòºÜ¹ã·º:±ê×¼ÊäÈëÊä³ö£¬ÎļþµÄ²Ù×÷£¬ÍøÂçÉϵÄÊý¾ÝÁ÷£¬×Ö·û´®Á÷£¬¶ÔÏóÁ÷£¬zipÎļþÁ÷....±¾ÎĵÄÄ¿µÄÊÇΪ´ó¼Ò×öÒ»¸ö¼òÒªµÄ½éÉÜ ......
DB2 SQL PL
SQL PLÊÇDB2ËùÖ§³ÖµÄ¹ý³Ì»¯ÓïÑÔ£¬ËüÊÇSQL/PSM±ê×¼µÄÒ»¸ö×Ó¼¯¡£Æä¸ù¾ÝÓ¦Ó÷¶Î§²»Í¬£¬ÓÖ·ÖΪInline SQL PL£¬Embeded SQL PLºÍCompiled SQL PL¡£
Inline SQL PL
ÊÊÓ÷¶Î§£º´¥·¢Æ÷¡¢º¯ÊýºÍ·½·¨£¬Ö§³Ö²¿·ÖSQL PL£¬Ê¹ÓÃʱҪעÒâһЩÏÞÖÆ
Óï·¨¹æÔò£ºBEGIN ATOMIC ... END
Embeded SQL PL
ÊÊÓ÷¶Î§£ºÇ¶Èëʽ£¬Åäº ......
±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁУ¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT TOP·ÖÒ³)
Óï¾äÐÎʽ£º
SELECT TOP Ò³¼Ç¼ÊýÁ¿ *
from ±íÃû
WHERE (ID NOT IN
(SELECT TOP (ÿҳÐÐÊý*(Ò³Êý-1)) ID
from ±íÃû
ORDER BY ID))
ORDER BY ID
//×Ô¼º»¹¿ÉÒÔ¼ÓÉÏһЩ²éѯÌõ¼þ
Àý:
select top 2 ......