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SELECT * FROM sysobjects WHERE (xtype = 'U')
SELECT COUNT(*) FROM sysobjects WHERE (xtype = 'U')
鍏朵腑鐨剎type = 'U' 鐨勬剰鎬濓細xtype char(2) 瀵硅薄綾誨瀷銆傚彲浠ユ槸涓嬪垪瀵硅薄綾誨瀷涓殑涓縐嶏細
C = CHECK 綰︽潫
D = 榛樿鍊兼垨 DEFAULT 綰︽潫
F = FOREIGN KEY 綰︽潫
L = 鏃ュ織
FN = 鏍囬噺鍑芥暟
IF = 鍐呭祵琛ㄥ嚱鏁?
P = 瀛樺偍榪囩▼
PK = PRIMARY KEY 綰︽潫錛堢被鍨嬫槸 K錛?
RF = 澶嶅埗絳涢夊瓨鍌ㄨ繃紼?
S = 緋葷粺琛?
TF = 琛ㄥ嚱鏁?
TR = 瑙﹀彂鍣?
U = 鐢ㄦ埛琛?
UQ = UNIQUE 綰︽潫錛堢被鍨嬫槸 K錛?
V = 瑙嗗浘
X = 鎵╁睍瀛樺偍榪囩▼
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榪炴帴鏁拌秴榪囦簡 MySQL 璁劇疆鐨勫鹼紝涓?max_connections 鍜?wait_timeout 閮芥湁鍏崇郴銆倃ait_timeout 鐨勫艱秺澶э紝榪炴帴鐨勭┖闂茬瓑寰呭氨瓚婇暱錛岃繖鏍峰氨浼氶犳垚褰撳墠榪炴帴鏁拌秺澶с?/p>
瑙ｅ喅鏂規硶錛?/p>
淇敼 MySQL 閰嶇疆鏂囦歡錛圵indows涓嬩負 my.ini錛?Linux涓嬩負 my.cnf 錛変腑鐨勫弬鏁幫細
max_connections= 1000
wait_timeout = 5濡傛灉娌℃湁鍙互鑷娣誨姞錛屼慨鏀瑰悗閲嶅惎 MySQL鏈嶅姟
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HKEY_LOCAL_MACHINE"SOFTWARE"Microsoft"Windows NT"CurrentVersion"Perflib"Last Help
榪欎袱涓殑鍊艱涓庡悓綰х洰褰曚笅009鎴?04鏂囦歡澶逛笅鐨凜ounter鍜孒elp鏈澶у煎搴斾繚鎸佷竴鑷沖嵆鍙?br /> 娉ㄦ剰錛氫腑鏂囩増鎵?04錛岃嫳鏂囩増鎵?09
瀹夎瀹宮s sql server 2005鍚庯紝闄勫姞涓婇」鐩殑鏁版嵁搴擄紝榪愯鎶ラ敊錛歔SQLServer 2000 Driver for JDBC][SQLServer]浼犲叆鐨勮〃鏍兼牸寮忔暟鎹祦(TDS)榪滅▼榪囩▼璋冪敤(RPC)鍗忚嫻佷笉姝ｇ‘銆?br /> 鍘熸潵鏄欏圭洰涔嬪墠鐢ㄧ殑鏄痵ql server 2000鐨勬暟鎹簱錛岄偅灝辮鏇存敼JDBC椹卞姩鍜屾暟鎹簱榪炴帴浠ｇ爜浜嗐?br /> 瑙ｅ喅鏂規硶:
涓嬭澆sql 2005 椹卞姩:
http://www.microsoft.com/downloads/details.aspx?FamilyID=E22BC83B-32FF-4474-A44A-22B6AE2C4E17&displaylang=zh-cn
淇敼鏁版嵁搴撹繛鎺ヤ唬鐮侊細
//protected static String dbClassName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";// 2000 version
protected static String dbClassName = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; // 2005 version
//protected static String dbUrl = "jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db_JXC;SelectMethod=Cursor";// 2000 version
protected static String dbUrl = "jdbc:sqlserver://localhost:1433;DatabaseName=db_JXC";// 2005 version
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