[mysqld]涓嬬殑default-character-set=utf8;
閲嶅惎mysql鏈嶅姟錛岄棶棰樿В鍐籌紒
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璁劇疆宸ヤ綔絀洪棿鐨勯」鐩紪鐮? 闃叉鍑虹幇涔辯爜
Window - Preferences - General - Workspace 灝?Text file encoding"閫変負(fù)"Other" - "UTF-8" 鏀瑰彉鐜版湁欏圭洰鐨勭紪鐮佺殑姝ラ: 鍙沖嚮欏圭洰灞炴? 閫夋嫨"Text file encoding"鐨勭紪鐮?br /> 璁劇疆鍏跺畠鏂囦歡鐨勭紪鐮?/strong> Window -> Preferences -> General -> Content Types 灝嗛渶瑕佽緗殑鏂囦歡璁劇疆緙栫爜, 鏈濂界粺涓璁句負(fù)UTF-8 璁劇疆鍚? 濡侸avascript鏂囦歡鍙甯告樉紺轟腑鏂?br /> 璁劇疆鍒涘緩JSP欏甸潰鏃?灝咼SP鐨勯粯璁ょ紪鐮佽涓篣TF-8 Window -> Preferences -> MyEclipse -> Files and Editors -> JSP 灝?Encoding"閫変負(fù)"ISO10646/Unicode(UTF-8) 鍘繪帀鏍煎紡鍖朖SP鏃墮〉闈腑鐨勭┖琛?/strong> Window -> Preferences -> MyEclipse -> HTML -> HTML Source 鍕鵑?Clear all blank lines" 澧炲己Eclipse鐨勮嚜鍔ㄤ唬鐮佹彁紺哄姛鑳?/strong> 榛樿涓? 鍙湁鎸?."鎴?Alt + /"鎵嶅嚭鐜頒唬鐮佹彁紺哄姛鑳? 涓嶅寮哄ぇ, 浣滃皬灝忚緗? 鍙皢浠ｇ爜鎻愮ず鍔熻兘鍍廣S鐨勪竴鏍鋒柟渚?br /> 1. Window -> Preferences -> Java -> Editor -> Content Assist 2. 灝?Auto Activation triggers for java"璁劇疆涓?.abc"(榛樿鏄?."), 鐐?Apply"搴旂敤 3. 瀵煎嚭鐩墠鐨凟clipse閰嶇疆鏂囦歡: File -> Export -> General -> Perferences, 閫夋嫨淇濆瓨璺緞, 淇濆瓨寰楀埌*.epf鏂囦歡 4. 鐢ㄦ枃鏈紪杈戝櫒鎵撳紑鍒氭墠淇濆瓨鐨?.epf鏂囦歡, 鎼滅儲(chǔ)".abc", 灝?.abc"閮ㄥ垎鏀逛負(fù) ".abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ(," (浠ヤ笂涓鴻嚜鍔ㄦ彁紺虹殑瑙﹀彂瀛楃, 鏍規(guī)嵁涓漢涔?fàn)鎯畡〗?, 淇濆瓨姝ら厤緗枃浠?涓漢瑙夊緱涓嶅お濂界敤錛屽鏄撳嚭閿?/span>) 5. 瀵煎叆姝ら厤緗枃浠? File -> import -> General -> Perferences, 瀵煎叆淇敼鍚庣殑閰嶇疆鏂囦歡. 絎竴涓夐」涓哄弽搴旀椂闂?鍙涓?00宸﹀彸(榛樿200) 楂樹寒綾諱腑鍚屼竴寮曠敤鐨勪嬌鐢ㄤ綅緗?/strong> Window -> Perferences -> General - > Editors -> TextEditors -> Annotations 閫夋嫨"Occurrences",鍕懼紩"Text as" -> "Highlighted"(鍧楅珮浜?鎴?Squiggles"(铏氱嚎) Link with Editor 鎵撳紑綾誨悗, 鑷姩鍦ㄥ寘綆＄悊鍣ㄨ繖閲屾樉紺虹被鐨勪綅緗?/div>  鍙栨秷Myeclipse鐨勮嚜鍔ㄦ枃浠墮獙璇?/strong>(鍗″偦鐨勫師鍥? Windows –> Perferences –>Myeclipse –> Validation 淇濈暀manual(鎵嬪姩)閮ㄥ垎錛宐uild涓嬪彧鐣?classpath dependency Validator" 鎵嬪姩楠岃瘉: 鍙抽敭鏂囦歡 -> Myeclipse -> Run Validation 鍙栨秷鎷煎啓閿欒媯(gè)鏌?/strong> 鎴戠埍鏁呮剰鍐欓敊鍗曡瘝, 涓嶉渶瑕佺郴緇熷府鎴戞鏌?br /> Windows –> perferences –> General –> Editors-> Text Editors -> Spelling 鍘繪帀"Enable spell checking"鍕鵑?br /> 鍏抽棴涓嶉渶瑕佺殑鍚姩欏?/strong> MyEclipse:
Windows –> Perferences–> General–> Startup and Shutdown 鎴戝彧淇濈暀浜?br />   欏哄簭涓嬫潵: 1, Tomcat6: 蹇呭鐨?.. 2, 鍐呭瓨鐩戣鍣? 鍙互鏌ョ湅Myeclipse鐨勪嬌鐢ㄥ唴瀛? 鎴戝枩嬈㈣繖宸ュ叿(鍦ㄨ彍鍗昅yeclipse - Utilities - Show Heap Status鎵撳紑) 3, JSP Debug宸ュ叿, 鍏跺疄鎴戜篃娌＄敤榪? 鎬曟湁涓澶╃敤鍒?.. 4, 鏂囦歡鍒涘緩鍚戝(涓漢緇忓父鐢ㄥ埌) 5, 鍚戝悗鍏煎鐨勬剰鎬濆惂, 鎬曟湁涓澶╀細(xì)鐢ㄥ埌, 浣嗗叾瀹炲緢灝戠敤, 鍙幓鎺?br /> 6, 閫忚鍥? 搴旇鍙互鍘繪帀鍚?.. 鍏跺疄灝卞彧鐢ㄩ夋嫨Tomcat6 鍏抽棴鑷姩鏇存柊 1, Eclipse: Windows –> Perferences–> Install/Update -> Automatic Updates 涓嶅嬀閫?Automatically find new updates and notify me" 2, Myeclipse: 1)Windows –> Perferences–> MyEclipse... -> Community Essentials &nb sp; 涓嶅嬀閫?Search for new features at startup" 2)Windows –> Perferences–> MyEclipse... -> Maven4MyEclipse 涓嶅嬀閫?Download repository index updates on startup" |
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SQL鍒嗙被錛?br />
DDL鈥旀暟鎹畾涔夎璦(CREATE錛孉LTER錛孌ROP錛孌ECLARE)
DML鈥旀暟鎹搷綰佃璦(SELECT錛孌ELETE錛孶PDATE錛孖NSERT)
DCL鈥旀暟鎹帶鍒惰璦(GRANT錛孯EVOKE錛孋OMMIT錛孯OLLBACK)
棣栧厛,綆瑕佷粙緇嶅熀紜璇彞錛?br />
1銆佽鏄庯細(xì)鍒涘緩鏁版嵁搴?br />
CREATE DATABASE database-name
2銆佽鏄庯細(xì)鍒犻櫎鏁版嵁搴?br />
drop database dbname
3銆佽鏄庯細(xì)澶囦喚sql server
--- 鍒涘緩 澶囦喚鏁版嵁鐨?device
USE master
EXEC sp_addumpdevice 'disk', 'testBack', 'c:\mssql7backup\MyNwind_1.dat'
--- 寮濮?澶囦喚
BACKUP DATABASE pubs TO testBack
4銆佽鏄庯細(xì)鍒涘緩鏂拌〃
create table tabname(col1 type1 [not null] [primary key],col2 type2 [not null],..)
鏍規(guī)嵁宸叉湁鐨勮〃鍒涘緩鏂拌〃錛?br />
A錛歝reate table tab_new like tab_old (浣跨敤鏃ц〃鍒涘緩鏂拌〃)
B錛歝reate table tab_new as select col1,col2… from tab_old definition only
5銆佽鏄庯細(xì)鍒犻櫎鏂拌〃drop table tabname
6銆佽鏄庯細(xì)澧炲姞涓涓垪
Alter table tabname add column col type
娉細(xì)鍒楀鍔犲悗灝嗕笉鑳藉垹闄ゃ侱B2涓垪鍔犱笂鍚庢暟鎹被鍨嬩篃涓嶈兘鏀瑰彉錛屽敮涓鑳芥敼鍙樼殑鏄鍔爒archar綾誨瀷鐨勯暱搴︺?br />
7銆佽鏄庯細(xì)娣誨姞涓婚敭錛?Alter table tabname add primary key(col)
璇存槑錛氬垹闄や富閿細(xì) Alter table tabname drop primary key(col)
8銆佽鏄庯細(xì)鍒涘緩绱㈠紩錛歝reate [unique] index idxname on tabname(col….)
鍒犻櫎绱㈠紩錛歞rop index table_name.idxname
娉細(xì)绱㈠紩鏄笉鍙洿鏀圭殑錛屾兂鏇存敼蹇呴』鍒犻櫎閲嶆柊寤恒?br />
9銆佽鏄庯細(xì)鍒涘緩瑙嗗浘錛歝reate view viewname as select statement
鍒犻櫎瑙嗗浘錛歞rop view viewname
10銆佽鏄庯細(xì)鍑犱釜綆鍗曠殑鍩烘湰鐨剆ql璇彞
閫夋嫨錛歴elect * from table1 where 鑼冨洿
鎻掑叆錛歩nsert into table1(field1,field2) values(value1,value2)
鍒犻櫎錛歞elete from table1 where 鑼冨洿
鏇存柊錛歶pdate table1 set field1=value1 where 鑼冨洿
鏌ユ壘錛歴elect * from table1 where field1 like ’%value1%’ ---like鐨勮娉曞緢綺懼錛屾煡璧勬枡!
鎺掑簭錛歴elect * from table1 order by field1,field2 [desc]
鎬繪暟錛歴elect count(*) as totalcount from table1
姹傚拰錛歴elect sum(field1) as sumvalue from table1
騫沖潎錛歴elect avg(field1) as avgvalue from table1
鏈澶э細(xì)select max(field1) as maxvalue from table1
鏈灝忥細(xì)select min(field1) as minvalue from table1
11銆佽鏄庯細(xì)鍑犱釜楂樼駭鏌ヨ榪愮畻璇?br />
A錛?UNION 榪愮畻絎?br />
UNION 榪愮畻絎﹂氳繃緇勫悎鍏朵粬涓や釜緇撴灉琛紙渚嬪 TABLE1 鍜?TABLE2錛夊茍娑堝幓琛ㄤ腑浠諱綍閲嶅琛岃屾淳鐢熷嚭涓涓粨鏋滆〃銆傚綋 ALL 闅?UNION 涓璧蜂嬌鐢ㄦ椂錛堝嵆 UNION ALL錛夛紝涓嶆秷闄ら噸澶嶈銆備袱縐嶆儏鍐典笅錛屾淳鐢熻〃鐨勬瘡涓琛屼笉鏄潵鑷?TABLE1 灝辨槸鏉ヨ嚜 TABLE2銆?br />
B錛?EXCEPT 榪愮畻絎?br />
EXCEPT 榪愮畻絎﹂氳繃鍖呮嫭鎵鏈夊湪 TABLE1 涓絾涓嶅湪 TABLE2 涓殑琛屽茍娑堥櫎鎵鏈夐噸澶嶈鑰屾淳鐢熷嚭涓涓粨鏋滆〃銆傚綋 ALL 闅?EXCEPT 涓璧蜂嬌鐢ㄦ椂 (EXCEPT ALL)錛屼笉娑堥櫎閲嶅琛屻?br />
C錛?INTERSECT 榪愮畻絎?br />
INTERSECT 榪愮畻絎﹂氳繃鍙寘鎷?TABLE1 鍜?TABLE2 涓兘鏈夌殑琛屽茍娑堥櫎鎵鏈夐噸澶嶈鑰屾淳鐢熷嚭涓涓粨鏋滆〃銆傚綋 ALL 闅?INTERSECT 涓璧蜂嬌鐢ㄦ椂 (INTERSECT ALL)錛屼笉娑堥櫎閲嶅琛屻?br />
娉細(xì)浣跨敤榪愮畻璇嶇殑鍑犱釜鏌ヨ緇撴灉琛屽繀欏繪槸涓鑷寸殑銆?br />
12銆佽鏄庯細(xì)浣跨敤澶栬繛鎺?br />
A銆乴eft outer join錛?br />
宸﹀榪炴帴錛堝乏榪炴帴錛夛細(xì)緇撴灉闆嗗嚑鍖呮嫭榪炴帴琛ㄧ殑鍖歸厤琛岋紝涔熷寘鎷乏榪炴帴琛ㄧ殑鎵鏈夎銆?br />
SQL: select a.a, a.b, a.c, b.c, b.d, b.f from a LEFT OUT JOIN b ON a.a = b.c
B錛歳ight outer join:
鍙沖榪炴帴(鍙寵繛鎺?錛氱粨鏋滈泦鏃㈠寘鎷繛鎺ヨ〃鐨勫尮閰嶈繛鎺ヨ錛屼篃鍖呮嫭鍙寵繛鎺ヨ〃鐨勬墍鏈夎銆?br />
C錛歠ull outer join錛?br />
鍏ㄥ榪炴帴錛氫笉浠呭寘鎷鍙瘋繛鎺ヨ〃鐨勫尮閰嶈錛岃繕鍖呮嫭涓や釜榪炴帴琛ㄤ腑鐨勬墍鏈夎褰曘?/p>
鍏舵錛屽ぇ瀹舵潵鐪嬩竴浜涗笉閿欑殑sql璇彞
1銆佽鏄庯細(xì)澶嶅埗琛?鍙鍒剁粨鏋?婧愯〃鍚嶏細(xì)a 鏂拌〃鍚嶏細(xì)b) (Access鍙敤)
娉曚竴錛歴elect * into b from a where 1<>1
娉曚簩錛歴elect top 0 * into b from a
2銆佽鏄庯細(xì)鎷瘋礉琛?鎷瘋礉鏁版嵁,婧愯〃鍚嶏細(xì)a 鐩爣琛ㄥ悕錛歜) (Access鍙敤)
insert into b(a, b, c) select d,e,f from b;
3銆佽鏄庯細(xì)璺ㄦ暟鎹簱涔嬮棿琛ㄧ殑鎷瘋礉(鍏蜂綋鏁版嵁浣跨敤緇濆璺緞) (Access鍙敤)
insert into b(a, b, c) select d,e,f from b in ‘鍏蜂綋鏁版嵁搴?#8217; where 鏉′歡
渚嬪瓙錛?.from b in '"&Server.MapPath(".")&"\data.mdb" &"' where..
4銆佽鏄庯細(xì)瀛愭煡璇?琛ㄥ悕1錛歛 琛ㄥ悕2錛歜)
select a,b,c from a where a IN (select d from b ) 鎴栬? select a,b,c from a where a IN (1,2,3)
5銆佽鏄庯細(xì)鏄劇ず鏂囩珷銆佹彁浜や漢鍜屾渶鍚庡洖澶嶆椂闂?br /> select a.title,a.username,b.adddate from table a,(select max(adddate) adddate from table where table.title=a.title) b
6銆佽鏄庯細(xì)澶栬繛鎺ユ煡璇?琛ㄥ悕1錛歛 琛ㄥ悕2錛歜)
select a.a, a.b, a.c, b.c, b.d, b.f from a LEFT OUT JOIN b ON a.a = b.c
7銆佽鏄庯細(xì)鍦ㄧ嚎瑙嗗浘鏌ヨ(琛ㄥ悕1錛歛 )
select * from (SELECT a,b,c FROM a) T where t.a > 1;
8銆佽鏄庯細(xì)between鐨勭敤娉?between闄愬埗鏌ヨ鏁版嵁鑼冨洿鏃跺寘鎷簡杈圭晫鍊?not between涓嶅寘鎷?br />
select * from table1 where time between time1 and time2
select a,b,c, from table1 where a not between 鏁板? and 鏁板?
9銆佽鏄庯細(xì)in 鐨勪嬌鐢ㄦ柟娉?br /> select * from table1 where a [not] in (‘鍊?’,’鍊?’,’鍊?’,’鍊?’)
10銆佽鏄庯細(xì)涓ゅ紶鍏寵仈琛紝鍒犻櫎涓昏〃涓凡緇忓湪鍓〃涓病鏈夌殑淇℃伅
delete from table1 where not exists ( select * from table2 where table1.field1=table2.field1 )
11銆佽鏄庯細(xì)鍥涜〃鑱旀煡闂錛?br /> select * from a left inner join b on a.a=b.b right inner join c on a.a=c.c inner join d on a.a=d.d where .....
12銆佽鏄庯細(xì)鏃ョ▼瀹夋帓鎻愬墠浜斿垎閽熸彁閱?br /> SQL: select * from 鏃ョ▼瀹夋帓 where datediff('minute',f寮濮嬫椂闂?getdate())>5
13銆佽鏄庯細(xì)涓鏉ql 璇彞鎼炲畾鏁版嵁搴撳垎欏?br /> select top 10 b.* from (select top 20 涓婚敭瀛楁,鎺掑簭瀛楁 from 琛ㄥ悕 order by 鎺掑簭瀛楁 desc) a,琛ㄥ悕 b where b.涓婚敭瀛楁 = a.涓婚敭瀛楁 order by a.鎺掑簭瀛楁
14銆佽鏄庯細(xì)鍓?0鏉¤褰?br /> select top 10 * form table1 where 鑼冨洿
15銆佽鏄庯細(xì)閫夋嫨鍦ㄦ瘡涓緇刡鍊肩浉鍚岀殑鏁版嵁涓搴旂殑a鏈澶х殑璁板綍鐨勬墍鏈変俊鎭?綾諱技榪欐牱鐨勭敤娉曞彲浠ョ敤浜庤鍧涙瘡鏈堟帓琛屾,姣忔湀鐑攢浜у搧鍒嗘瀽,鎸夌鐩垚緇╂帓鍚?絳夌瓑.)
select a,b,c from tablename ta where a=(select max(a) from tablename tb where tb.b=ta.b)
16銆佽鏄庯細(xì)鍖呮嫭鎵鏈夊湪 TableA 涓絾涓嶅湪 TableB鍜孴ableC 涓殑琛屽茍娑堥櫎鎵鏈夐噸澶嶈鑰屾淳鐢熷嚭涓涓粨鏋滆〃
(select a from tableA ) except (select a from tableB) except (select a from tableC)
17銆佽鏄庯細(xì)闅忔満鍙栧嚭10鏉℃暟鎹?br /> select top 10 * from tablename order by newid()
18銆佽鏄庯細(xì)闅忔満閫夋嫨璁板綍
select newid()
19銆佽鏄庯細(xì)鍒犻櫎閲嶅璁板綍
Delete from tablename where id not in (select max(id) from tablename group by col1,col2,...)
20銆佽鏄庯細(xì)鍒楀嚭鏁版嵁搴撻噷鎵鏈夌殑琛ㄥ悕
select name from sysobjects where type='U'
21銆佽鏄庯細(xì)鍒楀嚭琛ㄩ噷鐨勬墍鏈夌殑
select name from syscolumns where id=object_id('TableName')
22銆佽鏄庯細(xì)鍒楃ずtype銆乿ender銆乸cs瀛楁錛屼互type瀛楁鎺掑垪錛宑ase鍙互鏂逛究鍦板疄鐜板閲嶉夋嫨錛岀被浼約elect 涓殑case銆?br />
select type,sum(case vender when 'A' then pcs else 0 end),sum(case vender when 'C' then pcs else 0 end),sum(case vender when 'B' then pcs else 0 end) FROM tablename group by type
鏄劇ず緇撴灉錛?br />
type vender pcs
鐢?shù)鑴?A 1
鐢?shù)鑴?A 1
鍏夌洏 B 2
鍏夌洏 A 2
鎵嬫満 B 3
鎵嬫満 C 3
23銆佽鏄庯細(xì)鍒濆鍖栬〃table1
TRUNCATE TABLE table1
24銆佽鏄庯細(xì)閫夋嫨浠?0鍒?5鐨勮褰?br />
select top 5 * from (select top 15 * from table order by id asc) table_鍒悕 order by id desc
銆銆
闅忔満閫夋嫨鏁版嵁搴撹褰曠殑鏂規(guī)硶錛堜嬌鐢≧andomize鍑芥暟錛岄氳繃SQL璇彞瀹炵幇錛?br />
銆銆瀵瑰瓨鍌ㄥ湪鏁版嵁搴撲腑鐨勬暟鎹潵璇達(dá)紝闅忔満鏁扮壒鎬ц兘緇欏嚭涓婇潰鐨勬晥鏋滐紝浣嗗畠浠彲鑳藉お鎱簡浜涖備綘涓嶈兘瑕佹眰ASP“鎵句釜闅忔満鏁?#8221;鐒跺悗鎵撳嵃鍑烘潵銆傚疄闄呬笂甯歌鐨勮В鍐蟲柟妗堟槸寤虹珛濡備笅鎵紺虹殑寰幆錛?br />
Randomize
RNumber = Int(Rnd*499) +1
銆
While Not objRec.EOF
If objRec("ID") = RNumber THEN
... 榪欓噷鏄墽琛岃剼鏈?...
end if
objRec.MoveNext
Wend
銆
銆銆榪欏緢瀹規(guī)槗鐞嗚В銆傞鍏堬紝浣犲彇鍑?鍒?00鑼冨洿涔嬪唴鐨勪竴涓殢鏈烘暟錛堝亣璁?00灝辨槸鏁版嵁搴撳唴璁板綍鐨勬繪暟錛夈傜劧鍚庯紝浣犻亶鍘嗘瘡涓璁板綍鏉ユ祴璇旾D 鐨勫箋佹鏌ュ叾鏄惁鍖歸厤RNumber銆傛弧瓚蟲潯浠剁殑璇濆氨鎵ц鐢盩HEN 鍏抽敭瀛楀紑濮嬬殑閭ｄ竴鍧椾唬鐮併傚亣濡備綘鐨凴Number 絳変簬495錛岄偅涔堣寰幆涓閬嶆暟鎹簱鑺辯殑鏃墮棿鍙氨闀夸簡銆傝櫧鐒?00榪欎釜鏁板瓧鐪嬭搗鏉ュぇ浜嗕簺錛屼絾鐩告瘮鏇翠負(fù)紼沖浐鐨勪紒涓氳В鍐蟲柟妗堣繖榪樻槸涓皬鍨嬫暟鎹簱浜嗭紝鍚庤呴氬父鍦ㄤ竴涓暟鎹簱鍐呭氨鍖呭惈浜嗘垚鍗冧笂涓囨潯璁板綍銆傝繖鏃跺欎笉灝辨瀹氫簡錛?br />
銆銆閲囩敤SQL錛屼綘灝卞彲浠ュ緢蹇湴鎵懼嚭鍑嗙‘鐨勮褰曞茍涓旀墦寮涓涓彧鍖呭惈璇ヨ褰曠殑recordset錛屽涓嬫墍紺猴細(xì)
Randomize
RNumber = Int(Rnd*499) + 1
銆
SQL = "SELECT * FROM Customers WHERE ID = " & RNumber
銆
set objRec = ObjConn.Execute(SQL)
Response.WriteRNumber & " = " & objRec("ID") & " " & objRec("c_email")
銆
銆銆涓嶅繀鍐欏嚭RNumber 鍜孖D錛屼綘鍙渶瑕佹鏌ュ尮閰嶆儏鍐靛嵆鍙傚彧瑕佷綘瀵逛互涓婁唬鐮佺殑宸ヤ綔婊℃剰錛屼綘鑷彲鎸夐渶鎿嶄綔“闅忔満”璁板綍銆俁ecordset娌℃湁鍖呭惈鍏朵粬鍐呭錛屽洜姝や綘寰堝揩灝辮兘鎵懼埌浣犻渶瑕佺殑璁板綍榪欐牱灝卞ぇ澶ч檷浣庝簡澶勭悊鏃墮棿銆?br />
鍐嶈皥闅忔満鏁?br />
銆銆鐜板湪浣犱笅瀹氬喅蹇冭姒ㄥ共Random 鍑芥暟鐨勬渶鍚庝竴婊存補(bǔ)錛岄偅涔堜綘鍙兘浼?xì)涓嬈″彇鍑哄鏉￠殢鏈鴻褰曟垨鑰呮兂閲囩敤涓瀹氶殢鏈鴻寖鍥村唴鐨勮褰曘傛妸涓婇潰鐨勬爣鍑哛andom 紺轟緥鎵╁睍涓涓嬪氨鍙互鐢⊿QL搴斿涓婇潰涓ょ鎯呭喌浜嗐?br />
銆銆涓轟簡鍙栧嚭鍑犳潯闅忔満閫夋嫨鐨勮褰曞茍瀛樻斁鍦ㄥ悓涓recordset鍐咃紝浣犲彲浠ュ瓨鍌ㄤ笁涓殢鏈烘暟錛岀劧鍚庢煡璇㈡暟鎹簱鑾峰緱鍖歸厤榪欎簺鏁板瓧鐨勮褰曪細(xì)
SQL = "SELECT * FROM Customers WHERE ID = " & RNumber & " OR ID = " & RNumber2 & " OR ID = " & RNumber3
銆
銆銆鍋囧浣犳兂閫夊嚭10鏉¤褰曪紙涔熻鏄瘡嬈￠〉闈㈣杞芥椂鐨?0鏉￠摼鎺ョ殑鍒楄〃錛夛紝浣犲彲浠ョ敤BETWEEN 鎴栬呮暟瀛︾瓑寮忛夊嚭絎竴鏉¤褰曞拰閫傚綋鏁伴噺鐨勯掑璁板綍銆傝繖涓鎿嶄綔鍙互閫氳繃濂藉嚑縐嶆柟寮忔潵瀹屾垚錛屼絾鏄?SELECT 璇彞鍙樉紺轟竴縐嶅彲鑳斤紙榪欓噷鐨処D 鏄嚜鍔ㄧ敓鎴愮殑鍙風(fēng)爜錛夛細(xì)
SQL = "SELECT * FROM Customers WHERE ID BETWEEN " & RNumber & " AND " & RNumber & "+ 9"
銆銆娉ㄦ剰錛氫互涓婁唬鐮佺殑鎵ц鐩殑涓嶆槸媯(gè)鏌ユ暟鎹簱鍐呮槸鍚︽湁9鏉″茍鍙戣褰曘?/p>
闅忔満璇誨彇鑻ュ共鏉¤褰曪紝嫻嬭瘯榪?br />
Access璇硶錛歋ELECT top 10 * From 琛ㄥ悕 ORDER BY Rnd(id)
Sql server:select top n * from 琛ㄥ悕 order by newid()
mysql:Select * From 琛ㄥ悕 Order By rand() Limit n
Access宸﹁繛鎺ヨ娉?鏈榪戝紑鍙戣鐢ㄥ乏榪炴帴,Access甯姪浠涔堥兘娌℃湁,緗戜笂娌℃湁Access鐨凷QL璇存槑,鍙湁鑷繁嫻嬭瘯, 鐜板湪璁頒笅浠ュ鍚庢煡)
璇硶:Select table1.fd1,table1,fd2,table2.fd2 From table1 left join table2 on table1.fd1,table2.fd1 where ...
浣跨敤SQL璇彞 鐢?..浠ｆ浛榪囬暱鐨勫瓧絎︿覆鏄劇ず
璇硶錛?br />
SQL鏁版嵁搴擄細(xì)select case when len(field)>10 then left(field,10)+'...' else field end as news_name,news_id from tablename
Access鏁版嵁搴擄細(xì)SELECT iif(len(field)>2,left(field,2)+'...',field) FROM tablename;
銆
Conn.Execute璇存槑
Execute鏂規(guī)硶
銆銆璇ユ柟娉曠敤浜庢墽琛孲QL璇彞銆傛牴鎹甋QL璇彞鎵ц鍚庢槸鍚﹁繑鍥炶褰曢泦錛岃鏂規(guī)硶鐨勪嬌鐢ㄦ牸寮忓垎涓轟互涓嬩袱縐嶏細(xì)
銆銆銆銆1錛庢墽琛孲QL鏌ヨ璇彞鏃訛紝灝嗚繑鍥炴煡璇㈠緱鍒扮殑璁板綍闆嗐傜敤娉曚負(fù)錛?br />
銆銆銆銆Set 瀵硅薄鍙橀噺鍚?榪炴帴瀵硅薄.Execute("SQL 鏌ヨ璇█")
銆銆銆Execute鏂規(guī)硶璋冪敤鍚庯紝浼?xì)鑷姩鍒涘圾櫘板綍闆嗗璞″Q屽茍灝嗘煡璇㈢粨鏋滃瓨鍌ㄥ湪璇ヨ褰曞璞′腑錛岄氳繃Set鏂規(guī)硶錛屽皢璁板綍闆嗚祴緇欐寚瀹氱殑瀵硅薄淇濆瓨錛屼互鍚庡璞″彉閲忓氨浠ｈ〃浜嗚璁板綍闆嗗璞°?/p>
銆銆銆銆2錛庢墽琛孲QL鐨勬搷浣滄ц璦鏃訛紝娌℃湁璁板綍闆嗙殑榪斿洖銆傛鏃剁敤娉曚負(fù)錛?br />
銆銆銆銆榪炴帴瀵硅薄.Execute "SQL 鎿嶄綔鎬ц鍙? [, RecordAffected][, Option]
銆銆銆銆銆銆·RecordAffected 涓哄彲閫夐」錛屾鍑哄彲鏀劇疆涓涓彉閲忥紝SQL璇彞鎵ц鍚庯紝鎵鐢熸晥鐨勮褰曟暟浼?xì)鑷姩淇濆瓨鍒拌鍙橀噺涓傞氳繃璁塊棶璇ュ彉閲忥紝灝卞彲鐭ラ亾SQL璇彞闃熷灝戞潯璁板綍榪涜浜嗘搷浣溿?br />
銆銆銆銆銆銆·Option 鍙夐」錛岃鍙傛暟鐨勫彇鍊奸氬父涓篴dCMDText錛屽畠鐢ㄤ簬鍛婅瘔ADO錛屽簲璇ュ皢Execute鏂規(guī)硶涔嬪悗鐨勭涓涓瓧絎﹁В閲婁負(fù)鍛戒護(hù)鏂囨湰銆傞氳繃鎸囧畾璇ュ弬鏁幫紝鍙嬌鎵ц鏇撮珮鏁堛?/p>
·BeginTrans銆丷ollbackTrans銆丆ommitTrans鏂規(guī)硶
銆銆榪欎笁涓柟娉曟槸榪炴帴瀵硅薄鎻愪緵鐨勭敤浜庝簨鍔″鐞嗙殑鏂規(guī)硶銆侭eginTrans鐢ㄤ簬寮濮嬩竴涓簨鐗╋紱RollbackTrans鐢ㄤ簬鍥炴粴浜嬪姟錛汣ommitTrans鐢ㄤ簬鎻愪氦鎵鏈夌殑浜嬪姟澶勭悊緇撴灉錛屽嵆紜浜嬪姟鐨勫鐞嗐?br />
銆銆浜嬪姟澶勭悊鍙互灝嗕竴緇勬搷浣滆涓轟竴涓暣浣擄紝鍙湁鍏ㄩ儴璇彞閮芥垚鍔熸墽琛屽悗錛屼簨鍔″鐞嗘墠綆楁垚鍔燂紱鑻ュ叾涓湁涓涓鍙ユ墽琛屽け璐ワ紝鍒欐暣涓鐞嗗氨綆楀け璐ワ紝騫舵仮澶嶅埌澶勯噷鍓嶇殑鐘舵併?br />
銆銆BeginTrans鍜孋ommitTrans鐢ㄤ簬鏍囪浜嬪姟鐨勫紑濮嬪拰緇撴潫錛屽湪榪欎袱涓箣闂寸殑璇彞錛屽氨鏄綔涓轟簨鍔″鐞嗙殑璇彞銆傚垽鏂簨鍔″鐞嗘槸鍚︽垚鍔燂紝鍙氳繃榪炴帴瀵硅薄鐨凟rror闆嗗悎鏉ュ疄鐜幫紝鑻rror闆嗗悎鐨勬垚鍛樹釜鏁頒笉涓?錛屽垯璇存槑鏈夐敊璇彂鐢燂紝浜嬪姟澶勭悊澶辮觸銆侲rror闆嗗悎涓殑姣忎竴涓狤rror瀵硅薄錛屼唬琛ㄤ竴涓敊璇俊鎭?/p>
鏈枃鏉ヨ嚜CSDN鍗氬錛岃漿杞借鏍囨槑鍑哄錛歨ttp://blog.csdn.net/yinhe272680158/archive/2009/05/10/4165357.aspx
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瑙ｅ喅鍔炴硶錛?br />
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Jsp: <%@ page contentType="text/html;charset=gb2312"%>
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3.鍦哄悎錛?/span>瑙ｅ喅post鏂瑰紡鎻愪氦鍐呭鐨勪貢鐮?/font>
瑙ｅ喅鍔炴硶錛?/span>request.setCharacterEncoding("GBK");
娉ㄦ剰錛?br />
涓瀹氳鍐欏湪瀛樺彇絎竴涓弬鏁頒箣鍓?/span>
涓嶈璋冪敤response.setCharacterEncoding("GBK");
4.鍦哄悎錛?/span><jsp:param name="user" value="<%=s%>"/>錛?font face="Times New Roman">url鍦板潃鍖呭惈涓枃鍙傛暟
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