oracle中怎么如何把两张表中查询到的数据求和， 在ORACLE中如何将一个表中某字段值合计与另一个表的某字段...
oracle\u4e2dSQL\u5982\u4f55\u628a\u4e24\u4e2a\u8868\u4e2d\u76f8\u5173\u6570\u636e\u76f8\u52a0\u697c\u4e3b\u8bf4\u7684\u76f8\u52a0\u662f\u6307\u6570\u503c\u7c7b\u578b\u7684\u76f8\u52a0\u8fd8\u662f\u6307\u5408\u5e76\u7ed3\u679c\u96c6\uff1f\u5982\u679c\u662f\u6570\u503c\u7c7b\u578b\u7684\u5217\u76f8\u52a0\u53ea\u9700\u8981\u628a\u4e24\u5f20\u8868\u7528\u5408\u9002\u7684\u5173\u8054\u6761\u4ef6\u5173\u8054\u8d77\u6765\u8fdb\u884c\u67e5\u8be2\uff0c\u5217\u76f8\u52a0\u5373\u53ef\uff1b\u5982\u679c\u662f\u5408\u5e76\u7ed3\u679c\u96c6\u9700\u8981\u6ce8\u610f\u5217\u987a\u5e8f\uff0c\u5b50\u67e5\u8be2\u5bf9\u5e94\u5217\u7684\u7c7b\u578b\u5fc5\u987b\u8981\u4e00\u81f4\uff0c\u7528UNION \u6216UNION ALL\u5173\u952e\u5b57\u3002
\u7528\u5982\u4e0b\u65b9\u6cd5\uff1a
\u5982\u6709\u4ee5\u4e0b\u4e24\u5f20\u8868\uff1a
\u73b0\u8981\u5c06test1\u8868\u4e2d\u7684id\u5b57\u6bb5\u6c42\u548c\uff0c\u7136\u540e\u4e0etest2\u8868\u4e2d\u7684id\u76f8\u51cf\uff0c\u53ef\u7528\u5982\u4e0b\u8bed\u53e5\uff1a
select a.id,a.id-b.id fromtest2 a,(select sum(id) id from test1) b\u67e5\u8be2\u7ed3\u679c\uff1a
(select * from a
union all
select * from b)
group by item_code ,spec,units,firm_id
绛旓細鍦Oracle鏁版嵁搴撶幆澧冧腑锛屽悎骞涓や釜琛ㄧ殑鎿嶄綔鐩稿鐩存帴銆備互涓嬫槸璇︾粏鐨勬楠わ細棣栧厛锛屽惎鍔ㄤ綘鐨凪icrosoftSQLServerManagementStudio宸ュ叿銆傚湪妗岄潰涓婏紝鎵惧埌骞跺弻鍑烩淢anagementStudio鈥濆浘鏍囷紝绋嬪簭浼氳嚜鍔ㄥ惎鍔ㄣ傝繘鍏ョ晫闈㈠悗锛屾壘鍒板苟鐐瑰嚮宸︿笂瑙掔殑鈥滄柊寤烘煡璇⑩濋夐」锛岃繖灏嗘墦寮涓涓柊鐨勬煡璇㈢紪杈戠獥鍙ｃ傚湪鏂版墦寮鐨勭獥鍙ｄ腑锛屼綘闇瑕佺紪鍐橲QL...
绛旓細鏈変袱绉嶅姙娉曪細绗竴绉嶆柟娉曟槸閫氳繃澶栭敭锛氬亣璁炬湁涓ゅ紶琛锛孉琛紙AId锛孉Name锛 B锛圔Id锛孊Name锛夎〃 锛岃鎯虫妸杩欎袱鑰呭叧鑱旇捣鏉ョ殑璇濄傚彲浠ラ氳繃澶栭敭鏉ュ叧鑱旓紝鍦˙琛ㄦ垨鑰匒琛ㄤ腑娣诲姞涓涓閿傝繖閲屽氨浠琛ㄦ妸B锛圔Id锛孉Id锛堝閿級锛孊Name锛夛紝杩欐牱閫氳繃澶栭敭涓ゅ紶琛ㄥ氨鍙互鑱旂郴璧锋潵浜嗭紝渚嬪鎴戜滑鍦ㄦ煡璇㈢殑鏃跺欓氳繃AId灏卞彲浠ュ叧...
绛旓細1銆佷复鏃惰〃 WITH CTE AS (SELECT T1.Sno,T1.Cno, T.Cname,T.Cpno,T.Ccredit,T.Grade FROM Course T INNER JOIN SC T1 ON T.Cno =T1.Cno ) SELECT * FROM 2銆佸垱寤鸿〃 CREATE TABLE AA AS SELECT T1.Sno,T1.Cno, T.Cname,T.Cpno,T.Ccredit,T.Grade FROM Course T INNER JOIN SC ...
绛旓細1銆侀鍏堬紝鍦ㄨ绠楁満妗岄潰涓婂弻鍑烩 Management Studio鈥濆浘鏍囷紝濡備笅鍥炬墍绀猴紝鐒跺悗杩涘叆涓嬩竴姝ャ2銆佸叾娆★紝瀹屾垚涓婅堪姝ラ鍚庯紝鍗曞嚮宸︿笂瑙鐨鈥滄柊寤烘煡璇⑩濇寜閽紝濡備笅鍥炬墍绀猴紝鐒跺悗杩涘叆涓嬩竴姝ャ3銆佹帴鐫锛屽畬鎴愪笂杩版楠ゅ悗锛屽湪鐣岄潰涓緭鍏ql璇彞鈥 select * from test1锛宼est2;鈥濓紝灏嗕袱涓〃鍚堝苟鎴愪竴涓〃锛屽涓嬪浘鎵...
绛旓細select*froma,bwherea.name1=b.name2;\r\nname1鏄痑琛ㄩ噷鐨瀛楁銆俓r\nname2鏄痓琛ㄩ噷鐨勫瓧娈点俓r\n杩欎釜鏌ュ嚭鏉ュ氨鏄浉鍚岀殑鏁版嵁灏辫兘鏌ヨ鍑烘潵浜嗐
绛旓細缁欎綘涓濊矾锛屽厛淇敼B琛ㄧ殑琛ㄧ粨鏋勶紝澧炲姞A琛ㄤ腑鐨勪袱涓鍒楋紝鐒跺悗鏇存柊B琛紝鐢ㄦ潵灏A琛ㄤ腑鐨勬暟鎹彃鍏ュ埌B琛ㄤ腑瀵瑰簲鐨勫垪銆
绛旓細select e.empno, e.ename, d.deptno, d.dname from emp e, dept d where e.deptno = d.deptno;鍦ㄤ箣鍓嶆墍浣跨敤鐨勬煡璇㈡搷浣滀箣涓紝閮芥槸浠庝竴寮犺〃涔嬩腑鏌ヨ鍑烘墍闇瑕佺殑鍐呭锛岄偅涔堝鏋滅幇鍦ㄤ竴涓煡璇㈣鍙ラ渶瑕佹樉绀哄寮犺〃鐨鏁版嵁锛屽垯灏卞繀椤诲簲鐢ㄥ埌澶氳〃鏌ヨ鐨勬搷浣滐紝鑰屽琛ㄦ煡璇㈢殑璇硶濡備笅锛歋ELECT [DISTINCT] * ...
绛旓細select item_code ,spec,units,firm_id,sum(amount),sum(price) from (select * from a union all select * from b)group by item_code ,spec,units,firm_id
绛旓細create table c as select c.date date1,code code ,money money,count count from a,b,c where a.code=b.code and a.date=b.date and a.code=c.code
绛旓細妤间富璇鐨鐩稿姞鏄寚鏁板肩被鍨嬬殑鐩稿姞杩樻槸鎸囧悎骞剁粨鏋滈泦锛熷鏋滄槸鏁板肩被鍨嬬殑鍒楃浉鍔犲彧闇瑕鎶婁袱寮犺〃鐢ㄥ悎閫傜殑鍏宠仈鏉′欢鍏宠仈璧锋潵杩涜鏌ヨ锛屽垪鐩稿姞鍗冲彲锛涘鏋滄槸鍚堝苟缁撴灉闆嗛渶瑕佹敞鎰忓垪椤哄簭锛屽瓙鏌ヨ瀵瑰簲鍒楃殑绫诲瀷蹇呴』瑕佷竴鑷达紝鐢║NION 鎴朥NION ALL鍏抽敭瀛椼
