务眍恹 SQL


盐我团穴屯叟 衔那老形眼 闲拍宋婆腿 HAVING


橡邃腩驽龛 HAVING 祛驽 镳桧桁囹 镱溏囡痤覃 耦铗礤窀眄 镱溏囡痤覃. 暑沅 恹 桉镱朦珞弪 耦铗礤窀眄 镱溏囡痤 镳邃腩驽龛 HAVING, 恹 漕腈睇 钽疣龛麒忄螯 忭屮龛 耨觇 磬 镱玷鲨, 觐蝾瘥 祛汶 猁 礤镱耩邃耱忮眄 桉镱朦珙忄螯 襦祛 镳邃腩驽龛 HAVING. 蔓 镱祉栩 桤 , 黩 镳邃腩驽龛 HAVING 祛驽 桉镱朦珙忄螯 蝾朦觐 嚆疱汔蝽 趔黻鲨, 觐蝾瘥 箨噻囗 桴 镳邃腩驽龛 SELECT, 桦 镱, 桉镱朦珞屐 桴 镳邃腩驽龛 GROUP BY. 雾 怆 蝾朦觐 忭屮龛扈 耨赅扈, 觐蝾瘥 恹 祛驽蝈 溴豚螯. 埋  镱蝾祗, 黩 镳邃桕囹 镳邃腩驽龛 HAVING 铞屙桠噱蝰 潆 赅驿铋 沭箫稃 桤 忭屮礤泐 玎镳铖, 礤 潆 赅驿铋 耱痤觇. 央邃钼囹咫, 镱溏囡痤 狍溴 恹镱腠螯 钿桧 疣 潆 赅驿铋 沭箫稃, 恹忮涓眄铋 桤 忭屮礤泐 玎镳铖, 礤 潆 赅驿铋 耱痤觇. 橡邃镱腩骅, 黩 恹 躅蜩蝈 耋祆桊钼囹 珥圜屙 耋祆 镳桀狃弪屙栝 镱牦镱 桤 蜞犭桷 青赅珙, 胥痼镲桊钼噔 桴 镱 溧蜞, 箐嚯桠 怦 溧螓, 沅 猁 SUM 礤 猁 镱 牮嚅礤 戾疱 磬 2000.00 恹 爨犟桁嚯铋 (MAX) 耋祆:

SELECT odate, SUM (amt) FROM Orders a GROUP BY odate HAVING SUM (amt) > ( SELECT 2000.00 + MAX (amt) FROM Orders b WHERE a.odate = b.odate );

项溏囡痤 恹麒耠弪 珥圜屙桢 MAX 潆 怦艴 耱痤 蝾 驽 襦祛 溧蝾, 黩 蝈牦 嚆疱汔蝽铋 沭箫稃 铖眍忭钽 玎镳铖. 蒡 漕腈眍 猁螯 恹镱腠屙, 赅 疣礤, 桉镱朦珙忄龛屐 镳邃腩驽龛 WHERE. 燕 镱溏囡痤 礤 漕腈屙 桉镱朦珙忄螯 镳邃腩驽龛 GROUP BY 桦 HAVING.




袜鬣腩  袜玎  嘛屦邃