[杞琞瑙f瀽oracle鐨凴OWNUM — 浣滆: chen_liang
瀵逛簬rownum鏉ヨ瀹冩槸oracle绯荤粺椤哄簭鍒嗛厤涓轰粠鏌ヨ杩斿洖鐨勮鐨勭紪鍙凤紝杩斿洖鐨勭涓琛屽垎閰嶇殑鏄1锛岀浜岃鏄2锛屼緷姝ょ被鎺紝杩欎釜浼瓧娈靛彲浠ョ敤浜庨檺鍒舵煡璇㈣繑鍥炵殑鎬昏鏁帮紝鑰屼笖rownum涓嶈兘浠ヤ换浣曡〃鐨勫悕绉颁綔涓哄墠缂銆
涓句緥璇存槑锛
EXECUTE IMMEDIATE鐢ㄦ硶灏忚В
EXECUTE IMMEDIATE 浠f浛浜嗕互鍓峅racle8i涓璂BMS_SQL package鍖.
瀹冭В鏋愬苟椹笂鎵ц鍔ㄦ佺殑SQL璇彞鎴栭潪杩愯鏃跺垱寤虹殑PL/SQL鍧.鍔ㄦ佸垱寤哄拰鎵цSQL璇彞鎬ц兘瓒呭墠锛孍XECUTE IMMEDIATE鐨勭洰鏍囧湪浜庡噺灏忎紒涓氳垂鐢ㄥ苟鑾峰緱杈冮珮鐨勬ц兘锛岃緝涔嬩互鍓嶅畠鐩稿綋瀹规槗缂栫爜.灏界DBMS_SQL浠嶇劧鍙敤锛屼絾鏄帹鑽愪娇鐢‥XECUTE IMMEDIATE,鍥犱负瀹冭幏鐨勬敹鐩婂湪鍖呬箣涓娿
鏃犻渶鐧诲綍淇敼Oracle鐢ㄦ埛瀵嗙爜
濡傛灉浣犱笉璁板緱浜唎racle鐢ㄦ埛鐨勫瘑鐮,鎴戜滑鍙互杩欐牱杩涜閲嶆柊璁剧疆:
鍦ㄥ懡浠よ鎵ц濡備笅鍛戒护锛
sqlplus “/@鏈嶅姟鍚 as sysdba”
鐒跺悗鍦╯qlplus涓
NO_DATA_FOUND鍜%NOTFOUND鐨勫樊鍒
涓鑸垵瀛﹁呭Oracle 鐨凬O_DATA_FOUND 鍜%NOTFOUND 涓や釜淇濈暀瀛楃殑鐢ㄦ硶涓嶅浜 瑙o紝涓昏鏄畠浠粠鎰忎箟涓婃槸鏈変簺绫讳技銆傚叾瀹炲畠浠殑鐢ㄦ硶鏄湁鍖哄埆鐨勶紝灏忕粨濡備笅锛
1 SELECT . . . INTO 璇彞瑙﹀彂 NO_DATA_FOUND锛
2 褰撲竴涓樉绀哄厜鏍囩殑 where 瀛愬彞鏈壘鍒版椂 瑙﹀彂 %NOTFOUND锛
Oracle鎻掑叆鍥炶溅鎹㈣绗
SQL>create TABLE t(abc varchar2(100));
琛ㄥ凡鍒涘缓銆
SQL>insert INTO t(abc) VALUES('abcdef'||chr(10)||chr(13)||'hjkml');
宸插垱寤 1 琛屻
SQL>select * FROM t;
ABC
abcdef
hjkml
Oracle鏌ヨ琛ㄥ悕鍙婃ā绯婃煡璇
绀轰緥锛
SELECT table_name,tablespace_name,TEMPORARY
FROM user_tables
WHERE table_name LIKE '%PROV%'
鍒嗘瀽锛
銆銆table_name:琛ㄥ悕锛坴archar2(30)锛;
銆銆tablespace_name:瀛樺偍琛ㄥ悕鐨勮〃绌洪棿锛坴archar2锛30锛夛級锛
鐢查鏂囩粓浜庨忛湶瀵筍UN鍏徃鍚勪釜鎶鏈拰浜у搧鐨勭瓥鐣
鐢查鏂囧湪鏃ュ墠鍙戝竷鐨勪竴浠紽AQ涓粓浜庨忛湶浜嗗SUN鍏徃鍚勪釜鎶鏈拰浜у搧鐨勭瓥鐣ワ紝鍏朵腑鍖呮嫭浜哊etBeans锛孏lassfish锛孫penOffice鍜 VirtualBox绛塖UN鐨勪骇鍝併備箣鍓嶅ぇ瀹跺叧蹇冪殑MySQL锛孲PARC鍜孲olaris閮藉凡缁忛噸鐢宠繃澶氭浜嗭紝浣嗗杩欏嚑涓骇鍝佺殑绛栫暐杩欒繕鏄涓娆¢忔紡銆備笅闈㈡潵鐪嬬湅鐢查鏂囧杩欏嚑涓骇鍝佺殑鏈潵瑙勫垝鍚с
銆銆NetBeans
銆銆鐢查鏂囨墦绠楀皢NetBeans浣滀负 JDeveloper鍜孫racle Enterprise Pack for Eclipse鐨勨滈澶栫殑寮婧愰夋嫨鈥濓紝鐢查鏂囬潪甯告竻妤氾紝JDeveloper鎵嶆槸Oracle铻嶅悎鏈潵浼佷笟绾у紑鍙戠殑鎴樼暐鎬у紑鍙戝伐鍏枫傜敳楠ㄦ枃琛ㄧずJDeveloper锛孍nterprise Pack鍜 NetBeans閮藉皢鏄疛ava鍜孞avaEE寮鍙戠殑鏈夋晥閫夋嫨銆
Oracle 鐢ㄦ埛鏉冮檺鏌ヨ
1.鏌ョ湅鎵鏈夌敤鎴凤細
sql>select * FROM dba_users;
sql>select * FROM all_users;
sql>select * FROM user_users;
oracle10g涓殑鍨冨溇琛ㄥ鑷存棤娉曠敓鎴恏ibernate閰嶇疆鏂囦欢鐨勯棶棰
浣跨敤oracle10g鐨勬湅鍙嬪彲鑳戒細鍙戠幇浠ュ墠鍒犻櫎鐨勮〃鍦ㄦ暟鎹簱涓嚭鐜颁簡寰堝鍨冨溇琛紝濡傦細BINjR8PK5HhrrgMK8KmgQ9nw==涔嬬被鐨勮〃鏃犳硶鍒犻櫎鏃犳硶鐢╠elete 鍒犻櫎,涓鑸笉褰卞搷姝e父浣跨敤锛屼絾鏄湁浠ヤ笅鎯呭喌浣挎垜浠繀椤诲垹闄ゅ畠
1,杩欎簺琛ㄥ崰鐢ㄧ┖闂
2,濡傛灉浣跨敤Middlegen-Hibernate-r5鐨勬湅鍙嬩細鍙戠幇涓浜涢棶棰橈紝涓嶄綘璞′互鍓嶇敤oracle9鏃堕偅涔堥『鐨勭敓鎴恏ibernate閰嶇疆鏂囦欢,鍘熷洜灏卞湪杩欓噷灏嗗畠鍒犻櫎灏辨病鏈夐棶棰樹簡锛
3,鍏跺畠鎯呭喌
BINjR8PK5HhrrgMK8KmgQ9nw==涔嬬被鐨勮〃杩欎釜鏄10g 鐨勬柊鐗规с
Drop Table 鍚庯紝娌℃湁鐪熸鐨勫垹闄よ〃锛岃屾槸鍦ㄢ滃瀮鍦剧珯鈥濅腑浜嗐傚彲浠ラ氳繃锛
SQL> SHOW RECYCLEBIN
鐪嬪埌銆傚鏋滆褰诲簳鍒犻櫎锛屼娇鐢細