|
ORACLE鏁版嵁搴撳懡鍚嶇紪鐮佽鑼?br />鐗堟湰璁板綍錛?br />褰撳墠鐗堟湰錛?br />浣?鑰咃細 瀹屾垚鏃ユ湡錛?br />絳?鏀?浜猴細 鏂囦歡鐘舵侊細 [ ] 鑽夌ǹ [鈭歖 姝ｅ紡鍙戝竷 [ ] 姝ｅ湪淇敼 絳炬敹鏃ユ湡錛?br />1銆?緙栧啓鐩殑 浣跨敤緇熶竴鐨勫懡鍚嶅拰緙栫爜瑙勮寖錛屼嬌鏁版嵁搴撳懡鍚嶅強緙栫爜椋庢牸鏍囧噯鍖栵紝浠ヤ究浜庨槄璇匯佺悊瑙ｅ拰 緇ф壙銆?br />2銆?閫傜敤鑼冨洿 鏈鑼冮傜敤浜庡叕鍙歌寖鍥村唴鎵鏈変互ORACLE浣滀負鍚庡彴鏁版嵁搴撶殑搴旂敤緋葷粺鍜岄」鐩紑鍙戝伐浣溿?br />3銆?瀵硅薄鍛藉悕瑙勮寖 3.1 鏁版嵁搴撳拰SID 鏁版嵁搴撳悕瀹氫箟涓虹郴緇熷悕+妯″潡鍚?br />脴 鍏ㄥ眬鏁版嵁搴撳悕鍜屼緥紼婼ID 鍚嶈姹備竴鑷?br />脴 鍥燬ID 鍚嶅彧鑳藉寘鍚瓧絎﹀拰鏁板瓧錛屾墍浠ュ叏灞鏁版嵁搴撳悕鍜孲ID 鍚嶄腑涓嶈兘鍚湁鈥淿鈥濈瓑瀛楃 3.2 琛ㄧ浉鍏?br />3.2.1 琛ㄧ┖闂?br />脴 闈㈠悜鐢ㄦ埛鐨勪笓鐢ㄦ暟鎹〃絀洪棿浠ョ敤鎴峰悕+_+data鍛藉悕 錛屽Aud 鐢ㄦ埛涓撶敤鏁版嵁琛ㄧ┖闂村彲鍛?br />鍚嶄負Aud_data 脴 闈㈠悜鐢ㄦ埛鐨勪笓鐢ㄧ儲寮曡〃絀洪棿浠ョ敤鎴峰悕+_+idx鍛藉悕 絎?/9欏?br />脴 闈㈠悜鐢ㄦ埛鐨勪笓鐢ㄤ復鏃惰〃絀洪棿浠ョ敤鎴峰悕+_+tmp鍛藉悕 脴 闈㈠悜鐢ㄦ埛鐨勪笓鐢ㄥ洖婊氭琛ㄧ┖闂翠互鐢ㄦ埛鍚?_+rbs 鍛藉悕 脴 闈㈠悜搴旂敤鐨勮〃絀洪棿浠ュ簲鐢ㄥ悕+_data/搴旂敤鍚?_idx/搴旂敤鍚?_tmp/搴旂敤鍚?_rbs 鍛藉悕 脴 LOB 孌墊暟鎹笓鐢ㄨ〃絀洪棿浠ュ叾鏁版嵁琛ㄧ┖闂?_+lobs 鍛藉悕錛屽涓婁緥涓暟鎹〃絀洪棿涓?br />Aud_data錛屽垯LOB 孌佃〃絀洪棿鍙懡鍚嶄負Aud_data_lobs 3.2.2 琛ㄧ┖闂存枃浠?br />琛ㄧ┖闂存枃浠跺懡鍚嶄互琛ㄧ┖闂村悕+涓や綅鏁板簭鍙?搴忓彿浠?1寮濮?緇勬垚錛屽Aud_data01 絳?br />3.2.3 琛?br />琛ㄥ懡鍚嶈閬靛驚浠ヤ笅鍘熷垯錛?br />脴 涓鑸〃閲囩敤鈥滅郴緇熷悕+t_+妯″潡鍚?_+琛ㄤ箟鍚嶁?鏍煎紡鏋勬垚 脴 鑻ユ暟鎹簱涓彧鍚湁鍗曚釜妯″潡錛屽懡鍚嶅彲閲囩敤鈥滅郴緇熷悕+t_+琛ㄤ箟鍚嶁濇牸寮忔瀯鎴?br />脴 妯″潡鍚嶆垨琛ㄤ箟鍚嶅潎浠ュ叾姹夎鎷奸煶鐨勯瀛楃鍛藉悕錛岃〃涔夊悕涓眽璇嫾闊沖潎閲囩敤灝忓啓錛屼笖 瀛楃闂翠笉鍔犲垎鍓茬錛?br />脴 琛ㄥ埆鍚嶅懡鍚嶈鍒欙細鍙栬〃涔夊悕鐨勫墠3 涓瓧絎﹀姞鏈鍚庝竴涓瓧絎︺傚鏋滃瓨鍦ㄥ啿紿侊紝閫傚綋澧?br />鍔犲瓧絎︼紙濡傚彇琛ㄤ箟鍚嶇殑鍓? 涓瓧絎﹀姞鏈鍚庝竴涓瓧絎︾瓑錛?br />脴 涓存椂琛ㄩ噰鐢ㄢ滅郴緇熷悕+t_tmp_+琛ㄤ箟鍚嶁?鏍煎紡鏋勬垚 脴 琛ㄧ殑鍛藉悕濡?br />dft_gy_cbap錛氱郴緇熷悕錛堢數(shù)璐?df錛?t_+妯″潡鍚嶏紙楂樺帇 gy錛?_+琛ㄤ箟鍚嶏紙鎶勮〃瀹夋帓 cbap錛?br />dft_cbbj: 緋葷粺鍚嶏紙鐢?shù)璐?df錛?t_+琛ㄤ箟鍚嶏紙鎶勮〃鏍囪 cbbj錛?br />dft_tmp_hj: 緋葷粺鍚嶏紙鐢?shù)璐?df錛?tmp+琛ㄤ箟鍚嶏紙鍚堣hj錛?姝ゅ涓轟復鏃惰〃) 脴 鍏寵仈琛ㄥ懡鍚嶄負Re_琛ˋ_琛˙,Re 鏄疪elative鐨勭緝鍐欙紝琛ˋ 鍜岃〃B鍧囬噰鐢ㄥ叾琛ㄤ箟鍚嶆垨 緙╁啓褰㈠紡銆?br />3.2.4 灞炴э紙鍒楁垨瀛楁錛?br />灞炴у懡鍚嶉伒寰互涓嬪師鍒欙細 脴 閲囩敤鏈夋剰涔夌殑鍒楀悕錛屼負瀹為檯鍚箟鐨勬眽璇嫾闊崇殑棣栧瓧絎︼紝涓斿瓧絎﹂棿涓嶅姞浠諱綍鍒嗗壊絎?br />脴 灞炴у悕鍓嶄笉瑕佸姞琛ㄥ悕絳変綔涓哄墠緙 脴 灞炴у悗涓嶅姞浠諱綍綾誨瀷鏍囪瘑浣滀負鍚庣紑 脴 涓嶈浣跨敤鈥淚D鈥濅綔涓哄垪鍚?br />脴 鍏寵仈瀛楁鍛藉悕浠?鈥渃d+_+鍏寵仈琛ㄧ殑琛ㄤ箟鍚嶏紙鎴栫緝鍐欙級+_+瀛楁鍚嶁濊繘琛?br />絎?/9欏?br />3.2.5 涓婚敭 脴 浠諱綍琛ㄩ兘蹇呴』瀹氫箟涓婚敭 脴 琛ㄤ富閿懡鍚嶄負錛氣減k+_+琛ㄥ悕(鎴栫緝鍐?+_+涓婚敭鏍囪瘑鈥?br />濡傗減k_YHXX_IDKH鈥濈瓑 3.2.6 澶栭敭 琛ㄥ閿懡鍚嶄負錛?鈥渇k+_+琛ㄥ悕(鎴栫緝鍐?+_涓昏〃鍚?鎴栫緝鍐?+_+涓婚敭鏍囪瘑鈥?br />濡傗渇k_YHLX_YHXX_SFZH鈥濈瓑 3.2.7 CHECK綰︽潫 CHECK 綰︽潫鍛藉悕涓猴細 鈥渃hk+_+CHECK綰︽潫鐨勫垪鍚嶏紙鎴栫緝鍐欙級鈥?br />3.2.8 UNIQUE綰︽潫 UNIQUE 綰︽潫鍛藉悕涓猴細 鈥渦nq+_+UNIQUE綰︽潫鐨勫垪鍚嶏紙鎴栫緝鍐欙級鈥?br />3.2.9 绱㈠紩 绱㈠紩鐨勫懡鍚嶄負錛氣滆〃鍚嶏紙鎴栫緝鍐欙級+_+鍒楀悕+_idx鈥濄?br />鍏朵腑澶氬崟璇嶇粍鎴愮殑灞炴у垪鍒楀悕鍙栧墠鍑犱釜鍗曡瘝棣栧瓧絎﹀啀鍔犳湯鍗曡瘝棣栧瓧絎︾粍鎴?br />濡倅d_kh 琛╧hid 涓婄殑index: yd_kh_khid_idx 3.2.10 瑙﹀彂鍣?br />脴 AFTER鍨嬭Е鍙戝櫒 緋葷粺鍚?tr_+<琛ㄥ悕>_+<i,u,d鐨勪換鎰忕粍鍚?gt; +[_row] 脴 BEFORE鍨嬭Е鍙戝櫒 緋葷粺鍚?tr_+<琛ㄥ悕>_+bef_<i,u,d鐨勪換鎰忕粍鍚?gt;+[_row] 脴 INSTEAD OF鍨嬭Е鍙戝櫒 緋葷粺鍚?ti_+<琛ㄥ悕>+_+<i,u,d鐨勪換鎰忕粍鍚?gt;+[_row] 脴 鍚勭綾誨瀷鐨勮Е鍙戝櫒涓?br />i錛寀錛宒 鍒嗗埆琛ㄧずinsert銆乽pdate 鍜宒elete 琛岀駭瑙﹀彂鍣紝鍚庡姞_row 鏍囪瘑錛岃鍙ョ駭瑙﹀彂鍣ㄤ笉鍔狅紝濡?yddftr_CSH_i_row 3.2.11 綈?br />絎?/9欏?br />綈囦互綈囦腑瑕佸瓨鍌ㄧ殑鍚勪釜琛紙鎴栬〃鍒悕錛夊強琛ㄩ棿鍔燼nd鐨勭粍鎴?鍛藉悕錛屽嵆琛ㄢ淎+And+琛˙鈥︹? 濡傚瓨鍌℅R(宸ヤ漢)鍜孏RJN錛堝伐浜烘妧鑳斤級琛ㄧ殑綈囧懡鍚嶄負GRAndGRJN 3.3 瑙嗗浘 瑙嗗浘鍛藉悕浠ョ郴緇熷悕v_+妯″潡鍚嶄綔涓哄墠緙錛屽叾浠栧懡鍚嶈鍒欏拰琛ㄧ殑鍛藉悕綾諱技 3.4 搴忓垪 搴忓垪鍛藉悕浠eq_+鍚箟鍚嶇粍鎴?br />3.5 鍚屼箟璇?br />鍚屼箟璇嶅懡鍚嶄笌鍏跺熀紜瀵硅薄鐨勫悕縐頒竴鑷達紝浣嗚鍘婚櫎鍏剁敤鎴峰墠緙鎴栧惈鏈夎繙紼嬫暟鎹簱閾炬帴鐨勫悗緙 3.6 瀛樺偍瀵硅薄鐩稿叧 3.6.1 瀛樺偍榪囩▼ 瀛樺偍榪囩▼鍛藉悕鐢扁滅郴緇熷悕+sp+_+瀛樺偍榪囩▼鏍囪瘑(緙╁啓)鈥濈粍鎴?br />瀛樺偍榪囩▼鏍囪瘑瑕佷互瀹為檯鍚箟鐨勬眽璇嫾闊崇殑棣栧瓧絎︽瀯鎴愶紝騫剁敤涓嬪垝綰垮垎鍓插悇涓粍鎴愰儴鍒嗐?br />濡傚鍔犱唬鐞嗗晢鐨勫笎鎴風殑瀛樺偍榪囩▼涓衡渟fsp_ZJDLSZH鈥濄?br />3.6.2 鍑芥暟 鍑芥暟鍛藉悕鐢扁滅郴緇熷悕+f+_+鍑芥暟鏍囪瘑鈥濈粍鎴?br />3.6.3 鍖?br />鍖呭懡鍚嶇敱鈥滅郴緇熷悕+pkg+_+鍖呮爣璇嗏濈粍鎴?br />3.6.4 鍑芥暟鏂囨湰涓殑鍙橀噺閲囩敤涓嬪垪鏍煎紡鍛藉悕錛?br />脴 鍙傛暟鍙橀噺鍛藉悕閲囩敤鈥渋 (o鎴杋o)+_+鍚嶇О鈥濆艦寮忥紝鍓嶇紑i 鎴杘 琛ㄨ緭鍏ヨ繕鏄緭鍑哄弬鏁?br />脴 榪囩▼鍙橀噺鍛藉悕閲囩敤鈥渓+_+鍚嶇О鈥濆艦寮?br />脴 鍏ㄥ眬鍖呭彉閲忓懡鍚嶉噰鐢ㄢ済+_+鍚嶇О鈥濆艦寮?br />脴 娓告爣鍙橀噺鍛藉悕閲囩敤鈥滃悕縐?_+cur鈥濆艦寮?br />脴 甯擱噺鍨嬪彉閲忓懡鍚嶉噰鐢ㄢ渃+_+鍚嶇О鈥濆艦寮?br />脴 鍙橀噺鍚嶉噰鐢ㄥ皬鍐欙紝鑻ュ睘浜庤瘝緇勫艦寮忥紝鐢ㄤ笅鍒掔嚎鍒嗛殧姣忎釜鍗曡瘝 脴 鍙橀噺鐢ㄦ潵瀛樻斁琛ㄤ腑鐨勫垪鎴栬鏁版嵁鍊兼椂錛屼嬌鐢?TYPE銆?ROWTYPE 鏂瑰紡澹版槑鍙橀噺錛屼嬌鍙橀噺澹?br />絎?/9欏?br />鏄庣殑綾誨瀷涓庤〃涓殑淇濇寔鍚屾錛岄殢琛ㄧ殑鍙樺寲鑰屽彉鍖?br />3.7 鐢ㄦ埛鍙婅鑹?br />脴 鐢ㄦ埛鍛藉悕鐢扁滅郴緇熷悕縐?_+user+_+鍚嶈瘝(鎴栫緝鍐?鎴栧悕璇嶇煭璇?鎴栫緝鍐?鈥濈粍鎴?br />脴 瑙掕壊鍛藉悕鐢扁滅郴緇熷悕縐?_+role+_+鍚嶈瘝(鎴栫緝鍐?鎴栧悕璇嶇煭璇?鎴栫緝鍐?鈥濈粍鎴?br />3.8 鏁版嵁搴撻摼鎺?br />脴 鏁版嵁搴撻摼鎺ュ懡鍚嶇敱鈥滆繙紼嬫湇鍔″櫒鍚?_+鏁版嵁搴撳悕+_+link鈥濈粍鎴?br />脴 鑻ヨ繙紼嬫湇鍔″櫒鍚嶅拰鏁版嵁搴撳悕涓鑷達紝涓婂紡鈥淿+鏁版嵁搴撳悕鈥濋儴鍒嗙渷鍘?br />3.9 鍛藉悕涓殑鍏跺畠娉ㄦ剰浜嬮」 脴 鍛藉悕閮戒笉寰楄秴榪?0涓瓧絎︺?br />脴 涓嶈鍦ㄥ璞″悕鐨勫瓧絎︿箣闂寸暀絀烘牸 脴 灝忓績淇濈暀璇嶏紝瑕佷繚璇佷綘鐨勫懡鍚嶆病鏈夊拰淇濈暀璇嶃佹暟鎹簱緋葷粺鎴栬呭父鐢ㄨ闂柟娉曞啿紿?br />4銆?緙栫爜瑙勮寖 4.1 涓鑸ф敞閲?br />4.1.1 娉ㄩ噴灝藉彲鑳界畝媧併佽緇嗚屽叏闈?br />4.1.2 鍒涘緩姣忎竴鏁版嵁搴撳璞℃椂閮借鍔犱笂COMMENT ON娉ㄩ噴錛屼互璇存槑璇ュ璞＄殑鍔熻兘鍜岀敤閫旓紱寤鴻〃鏃訛紝 瀵規(guī)煇浜涙暟鎹垪涔熻鍔犱笂COMMENT ON娉ㄩ噴錛屼互璇存槑璇ュ垪鍜?鎴栧垪鍙栧肩殑鍚箟銆?br />濡傦細XX 琛ㄤ腑鏈塁ZZT鍒楀睘鎬т負NUMBER(10, 0)鍙姞COMMENT ON 娉ㄩ噴濡備笅 COMMENT ON COLUMN XX.CZZT IS '0 = 姝ｅ父, 1 = 絳夊緟, 2 = 瓚呮椂, 3 = 鐧誨嚭' 4.1.3 娉ㄩ噴璇硶鍖呭惈涓ょ鎯呭喌錛氬崟琛屾敞閲娿佸琛屾敞閲?br />鍗曡娉ㄩ噴錛氭敞閲婂墠鏈変袱涓繛瀛楃錛?-錛夛紝涓鑸鍙橀噺銆佹潯浠跺瓙鍙ュ彲浠ラ噰鐢ㄨ綾繪敞閲娿?br />澶氳娉ㄩ噴錛氱鍙?*鍜?/涔嬮棿鐨勫唴瀹逛負娉ㄩ噴鍐呭銆傚鏌愰」瀹屾暣鐨勬搷浣滃緩璁嬌鐢ㄨ綾繪敞閲娿?br />4.2 鍑芥暟鏂囨湰娉ㄩ噴 4.2.1 鍦ㄦ瘡涓涓潡鍜岃繃紼嬶紙瀛樺偍榪囩▼銆佸嚱鏁般佸寘銆佽Е鍙戝櫒銆佽鍥劇瓑錛夌殑寮澶存斁緗敞閲?br />/************************************************************************ 絎?/9欏?br />*name : --鍑芥暟鍚?br />*function : --鍑芥暟鍔熻兘 *input : --杈撳叆鍙傛暟 *output : --杈撳嚭鍙傛暟 *author : --浣滆?br />*CreateDate : --鍒涘緩鏃墮棿 *UpdateDate : --鍑芥暟鏇存敼淇℃伅錛堝寘鎷綔鑰呫佹椂闂淬佹洿鏀瑰唴瀹圭瓑錛?br />*************************************************************************/ CREATE [OR REPLACE] PROCEDURE dfsp_xxx 鈥?br />4.2.2 浼犲叆鍙傛暟鐨勫惈涔夊簲璇ユ湁鎵璇存槑銆傚鏋滃彇鍊艱寖鍥寸‘瀹氾紝涔熷簲璇ヤ竴騫惰鏄庛傚彇鍊兼湁鐗瑰畾鍚箟 鐨勫彉閲忥紙濡俠oolean綾誨瀷鍙橀噺錛夛紝搴旂粰鍑烘瘡涓肩殑鍚箟銆?br />4.2.3 鍦ㄦ瘡涓涓彉閲忓０鏄庣殑鏃佽竟娣誨姞娉ㄩ噴銆傝鏄庤鍙橀噺瑕佺敤浣滀粈涔?br />閫氬父錛岀畝鍗曚嬌鐢ㄥ崟琛屾敞閲婂氨琛屼簡錛屼緥濡?br />l_sfzh CHAR(11) --韜喚璇佸彿鐮?br />4.2.4 鍦ㄥ潡鐨勬瘡涓富瑕侀儴鍒嗕箣鍓嶆坊鍔犳敞閲?br />鍦ㄥ潡鐨勬瘡涓富瑕侀儴鍒嗕箣鍓嶅鍔犳敞閲婏紝瑙ｉ噴涓嬧旂粍璇彞鐩殑錛屾渶濂芥槸璇存槑璇ユ璇彞鍙婄畻 娉曠殑鐩殑浠ュ強瑕佸緱鍒扮殑緇撴灉錛屼絾涓嶈瀵瑰叾緇嗚妭榪涜榪囧鐨勬弿榪?br />4.2.5 鍦ㄥ潡鍜岃繃紼嬬殑寮澶存敞閲婁腑榪樺彲浠ュ鍔犺璁塊棶鐨勬暟鎹簱絳変俊鎭?br />4.3 甯哥敤SQL 璇彞鐨勭紪鍐欒鑼?br />4.3.1 CREATE璇彞 CREATE TABLE dft_dksz( YHBS VARCHAR2(20) NOT NULL, ZHGX DATE, DKKHD VARCHAR2(24), CONSTRAINT pk_dksz_yhbs PRIMARY KEY (YHBS) ) 4.3.2 SELECT璇彞 鏌ヨ璇彞閲囩敤浠ヤ笅鍘熷垯緙栧啓錛堝彲鏈澶у寲閲嶇敤鍏變韓姹犱腑鐨凷QL 璇彞錛屾彁楂樺簲鐢ㄧ▼搴忔ц兘錛夛細 脴 灝哠ELECT 璇彞鍒嗕負5閮ㄥ垎: 錛?錛?鐢盨ELECT 寮澶達紝鍚庤窡涓涓樉紺烘煡璇㈢粨鏋滅殑鍒楄〃錛?br />絎?/9欏?br />錛?錛?鐢盕ROM 寮澶達紝鍚庤窡涓涓垨澶氫釜鑾峰彇鏁版嵁鎵娑夊強鐨勮〃錛?br />錛?錛?鐢盬HERE 寮澶達紝鍚庤窡涓涓垨澶氫釜紜畾鎵闇鍊肩殑鏉′歡錛?br />錛?錛?鐢盙ROUP BY寮澶達紝鍚庤窡涓涓垨澶氫釜琛ㄥ垪鍚嶏紝閫氳繃榪欎簺鍒椾互瀵規(guī)煡璇㈢粨鏋滆繘琛屾眹鎬伙紱 錛?錛?鐢監(jiān)RDER BY寮澶達紝鍚庤窡涓涓垨澶氫釜琛ㄥ垪鍚嶏紝閫氳繃榪欎簺鍒椾互瀵規(guī)煡璇㈢粨鏋滆繘琛屾帓搴忋?br />脴 姣忎釜閮ㄥ垎鍒嗚緙栧啓錛屽皢姣忎竴琛岀殑絎竴涓叧閿瓧涓庣涓琛岀殑SELECT灝鵑儴瀵歸綈錛屽 SELECT col1, col2, col3 FROM table1 WHERE col1 > col2 GROUP BY col1, col2 ORDER BY col1; 脴 鍏抽敭瀛楃敤澶у啓錛屽垪鍚嶅拰琛ㄥ悕閲囩敤灝忓啓 脴 璇彞涓祵鍏ラ楀彿鏃訛紝鍦ㄩ楀彿鍚庨潰鍔犱竴絀烘牸錛屽綋閫楀彿鏄渶鍚庝竴涓瓧絎︽椂錛屾妸瀹冩斁鍦ㄦ湰琛?br />脴 褰撹鍙ョ殑鍚屼竴閮ㄥ垎瑕佸歡緇埌涓嬩竴琛屾椂錛屾寜涓嬪垪鏍煎紡鎺掑垪錛?br />SELECT col1, col2, col3, col4, col5, col6, col7, col8, col9, col10 脴 灝嗚鍙ヤ腑WHERE 鍜孉ND 閮ㄥ垎鏍煎紡鍖栵紝涔﹀啓甯冨眬綾諱技浜?br />WHERE AND AND 脴 褰撹鍙ヤ腑鍑虹幇鎷彿鏃訛紝鎷彿鐨勪袱杈逛笉鐣欑┖鏍?br />脴 鍦⊿QL 璇彞浣跨敤榪愮畻絎︽椂錛屾搷浣滀袱杈瑰簲鍚勭暀涓涓┖鏍鹼紝濡?br />WHERE X = Y AND A = B AND C = D 4.3.3 INSERT璇彞 INSERT INTO <瑕佹彃鍏ョ殑琛ㄥ悕> (<鍒?>, <鍒?>, .., <鍒梟-1>, <鍒梟>) VALUES (<鍒?鍊?gt;, <鍒?鍊?gt;, .., <鍒梟-1鍊?gt;, <鍒梟鍊?gt;) 4.3.4 UPDATE璇彞 UPDATE <瑕佹洿鏂扮殑琛ㄥ悕> SET <瑕佹洿鏂扮殑鍒?gt; = <鍒楀?gt; 4.3.5 DELETE璇彞 DELETE FROM table1 WHERE col1 = '???' 絎?/9欏?br />4.4 鏉′歡鎵ц璇彞(IF)緙栧啓瑙勮寖 鏉′歡鎵ц璇彞IF鈥LSE 鎸変互涓嬫牸寮忕紪鍐?br />IF <鏉′歡琛ㄨ揪寮?gt; THEN <涓鏉℃垨澶氭潯璇彞> [ELSE (鎴朎LSIF<鏉′歡琛ㄨ揪寮?gt;) THEN <涓鏉℃垨澶氭潯璇彞> END IF; 娉? 錛?錛?鍦↖F鈥HEN鍜孍LSE(鎴朎LSIF)鍙奅LSE鈥HEN鍜孍ND IF闂村彲鍖呭惈涓鏉℃垨澶氭潯PL/SQL 璇彞錛岃屼笉闇瑕佸姞BEGIN 鍜孍ND 錛?錛?IF鈥LSE鈥NDIF 璇彞鍙互宓屽 錛?錛?娉ㄦ剰ELSIF鐨勫啓娉?br />4.5 寰幆璇彞緙栧啓瑙勮寖 4.5.1 綆鍗曞驚鐜鍙?br />LOOP <闆舵潯鎴栧鏉¤鍙?gt; EXIT WHEN <鏉′歡琛ㄨ揪寮?gt; <闆舵潯鎴栧鏉¤鍙?gt; END LOOP; 4.5.2 FOR寰幆璇彞 FOR 鍙橀噺 IN [鍙橀噺鍙栧艱寖鍥碷 LOOP <涓鏉℃垨澶氭潯璇彞> END LOOP; 4.5.3 WHILE寰幆璇彞 WHILE <鏉′歡琛ㄨ揪寮?gt; LOOP <涓鏉℃垨澶氭潯璇彞> END LOOP; 4.6 鍑芥暟鏂囨湰錛堝瓨鍌ㄨ繃紼嬨佸嚱鏁板拰鍖呯瓑錛?br />絎?/9欏?br />脴 瀵逛簬瀛樺偍榪囩▼銆佸嚱鏁扮瓑紼嬪簭鍧楅兘瑕佹湁寮傚父澶勭悊閮ㄥ垎錛屽湪寮傚父閮ㄥ垎鐨勬渶鍚庨兘瑕佽緗甇THERS 寮傚父鎯呮佸鐞嗗櫒錛屼互鎻愰珮紼嬪簭鐨勮嚜媯鑳藉姏錛屾牸寮忓涓嬶細 BEGIN 鈥?br />EXCEPTION WHEN excep鈥攏ame1 THEN 鈥?br />WHEN excep鈥攏ame2 THEN 鈥?br />WHEN OTHERS THEN 鈥?br />END; 脴 瀵逛簬瀛愮▼搴忋佽Е鍙戝櫒銆佸寘絳夊甫鍚嶇殑紼嬪簭鍧楋紝瑕佷嬌鐢ㄧ粨鏉熸爣璇嗭紝濡?br />CREATE OR REPLACE PROCEDURE XXXsp_XXX IS 鈥?br />BEGIN 鈥?br />END XXXsp_XXX;/* 姝ゅ鐨勮繃紼嬪悕XXXsp_XXX鏄彲閫夌殑錛岃鑼冭姹傚啓涓婏紝涓庡潡寮濮嬬殑CREATE鐩稿搴?*/ |
]]>
]]>
- 緋葷粺鐜錛?
- 1銆佹搷浣滅郴緇燂細Windows 2000
2銆佹暟鎹簱錛氥Oracle 8i R2 (8.1.6) for NT 浼佷笟鐗?br />3銆佸畨瑁呰礬寰勶細C:\ORACLE
- 瀹炵幇鏂規(guī)硶錛?
- 鍒╃敤SELECT鐨凢OR UPDATE瀛愬彞瀹炵幇
conn system/manager --鍒涘緩瀹為獙鐢ㄦ埛 grant connect,resource to test identified by test; conn test/test --鍒涘緩瀹為獙琛? create table a(a number); insert into a values(1); commit; select * from a for update; 鎴? select * from a for update of a.a;錛坅琛ㄧ殑a鍒楋級 --鏂版墦寮涓涓猄QL*Plus紿楀彛 conn test/test錛坱est鐢ㄦ埛涓婄殑絎簩涓細璇濓級 delete from a; 姝ゆ椂錛岀郴緇熷仠欏跨姸鎬侊紝絳夊緟瑙ｉ攣錛? 鍙鍦ㄧ涓涓獥鍙ｅ彂鍑簉oll;鎴朿ommit;鍛戒護錛屽嵆鍙В闄ら攣瀹氱姸鎬併?
]]>
| DEPTID | PAREDEPTID | NAME |
| NUMBER | NUMBER | CHAR (40 Byte) |
| 閮ㄩ棬id | 鐖墮儴闂╥d(鎵灞為儴闂╥d) | 閮ㄩ棬鍚嶇О |
| 閫氳繃瀛愯妭鐐瑰悜鏍硅妭鐐硅拷鏈? select * from persons.dept start with deptid=76 connect by prior paredeptid=deptid 閫氳繃鏍硅妭鐐歸亶鍘嗗瓙鑺傜偣. select * from persons.dept start with paredeptid=0 connect by prior deptid=paredeptid 鍙氳繃level 鍏抽敭瀛楁煡璇㈡墍鍦ㄥ眰嬈? select a.*,level from persons.dept a start with paredeptid=0 connect by prior deptid=paredeptid 鍐嶆澶嶄範涓涓?start with ...connect by 鐨勭敤娉曪紝 start with 鍚庨潰鎵璺熺殑灝辨槸灝辨槸閫掑綊鐨勭瀛愩? 閫掑綊鐨勭瀛愪篃灝辨槸閫掑綊寮濮嬬殑鍦版柟 connect by 鍚庨潰鐨?prior" 濡傛灉緙虹渷錛氬垯鍙兘鏌ヨ鍒扮鍚堟潯浠剁殑璧峰琛岋紝騫朵笉榪涜閫掑綊鏌ヨ錛? connect by prior 鍚庨潰鎵鏀劇殑瀛楁鏄湁鍏崇郴鐨勶紝瀹冩寚鏄庝簡鏌ヨ鐨勬柟鍚戙? |
緇冧範錛?閫氳繃瀛愯妭鐐硅幏寰楅《鑺傜偣
select FIRST_VALUE(deptid)
聽 OVER (ORDER BY LEVEL DESC ROWS UNBOUNDED PRECEDING) AS firstdeptid from聽 persons.dept聽聽 start with deptid=76 connect by prior paredeptid=deptid
]]>