SQL服务器：作业2个问题都搞不清楚

两个问题将是工作过此表：SQL服务器：作业2个问题都搞不清楚

CREATE TABLE WINE 
(
    wineID    INT, 
    wineName   VARCHAR(50), 
    wineYear   CHAR(4), 
    winePrice   DECIMAL(5,2), 
    wineDesc   VARCHAR(255), 
    wineHarvest   DATE, 
    wineAlcohol   DECIMAL(5,2), 
    wineSugar_gl   DECIMAL(5,2), 
    wineAcidity_gl   DECIMAL(3,2), 
    winePHLevel   DECIMAL(3,2), 
    wineIsMaloLactic  BIT, 
    wineCaseProduction  SMALLINT, 

    CONSTRAINT pk_wine_wineID PRIMARY KEY(wineID) 
); 

/*22 New Wine Records*/ 

INSERT INTO WINE VALUES(1,'Dean''s List Chardonnay','2007', 27.95, 'This Chardonnay provides enticing aromas of apricots, vanilla bean and butterscotch. A medium bodied Chardonnay, with a silky mouth texture, and nice acidity for balance. Flavours of caramel, peach and candied lemon dominate the palate', '2007-09-20',13.0, 3.1, 5.6, 3.4, 0, 200); 

INSERT INTO WINE VALUES(2,'Barrel Fermented Chardonnay','2008', 18.95, 'This Chardonnay provides tantalizing aromas of caramel, vanilla bean and peach pie. This full-bodied wine has a silky mouth texture, offering characteristics of butterscotch and baked apples on the palate, leading to a long and lingering finish.', '2008-10-13',13.5, 3, 6, 3.46, 0, 320); 

INSERT INTO WINE VALUES(3,'Unoaked Chardonnay','2009', 14.95, 'With lively aromas of citrus and melon, this refreshing Chardonnay offers flavours of lemon and green apple on the palate', '2009-10-29',13.0, 6, 7, 3.3, 1, 190); 

INSERT INTO WINE VALUES(4,'Gewurztraminer','2009', 14.95, 'This is a highly aromatic Gewurztraminer, offering aromas of lychee, rose petals and citrus fruit. On the palate,this wine has lively acidity, with flavours of grapefruit and orange marmalade', '2009-10-14',12.0, 5, 7.2, 3.2, 1, 293); 

INSERT INTO WINE VALUES(5,'Sauvignon Blanc','2008', 14.95, 'Our 2008 Sauvignon Blanc is highly aromatic providing aromas of citrus and fresh cut grass. This wine is nicely balanced, with refreshing acidity and offers flavours of citrus fruit and green fig on the palate', '2008-09-29',12.0, 4, 6.9, 3.4, 1, 270); 

INSERT INTO WINE VALUES(6,'Riesling ','2008', 13.95, 'Our 2008 Riesling offers aromas of lemon and lime on the nose, followed by flavours of green apple and citrus fruit on the palate. This is a nicely balanced wine offering crisp acidity, and a lovely finish', '2008-10-08',11.5, 9, 6.8, 3.2, 1, 420); 

INSERT INTO WINE VALUES(7,'Riesling Semi-Dry','2009', 13.95, 'Our 2009 Riesling offers aromas of citrus fruit and peach on the nose, followed by flavours of green apple and citrus fruit on the palate. A nicely balanced wine with crisp acidity, and a hint of sweetness', '2009-10-30',12.0, 18, 8.5, 3, 1, 227); 

INSERT INTO WINE VALUES(8,'College White','2008', 10.95, 'A Chardonnay/Vidal blend offering aromas of peach and orange blossoms. This wine is nicely balanced, with mild acidity and offers flavours of tropical fruit on the palate', '2008-09-20',12.0, 5.9, 6.2, 3.3, 1, 250); 

INSERT INTO WINE VALUES(9,'Dean''s List Prodigy Icewine','2009', 37.95, 'This Vidal/Chardonnay/Riesling blend has a very expressive nose, with aromas of candied lemon and tropical fruit. Flavours of mango and honey coat the palate, with a perfect balance between acidity and sweetness', '2010-01-29',11.0, 211, 8.6, 3.4, 1, 96); 

INSERT INTO WINE VALUES(10,'Dean''s List Savant Icewine','2008', 69.95, 'This Icewine offers aromas of strawberry jam, and rhubarb on the nose, with similar flavours on the palate. This wine has a beautiful mouth texture, with a perfect balance between sweetness and acidity', '2009-01-21',12.0, 225, 3.4, 8.8, 1, 61); 

INSERT INTO WINE VALUES(11,'Dean''s List Cabernet Franc Icewine','2009', 29.95, 'This Cabernet Franc Icewine offers aromas of strawberry, honey and rhubarb on the nose, with similar flavours on the palate. This wine has a beautiful mouth texture, with a perfect balance between sweetness and acidity', '2010-01-29',11.0, 210, 8.4, 3.4, 1, 472); 

INSERT INTO WINE VALUES(12,'Dean''s List Meritage','2007', 47.95, 'This complex Meritage offers black currants, plum and cedar on the nose, with flavours of cassis, dark chocolate and blackberry. Full bodied, with firm yet ripe tannins, and a long and lingering finish', '2006-10-01',13.0, 2.8, 6, 3.51, 0, 250); 

INSERT INTO WINE VALUES(13,'Dean''s List Pinot Noir Canadian Oak Project','2007', 38.95, 'This limited edition Pinot offers aromas of ripe strawberries, cigar and mocha. This medium bodied red provides firm, yet ripe tannins and flavours of black cherry and vanilla bean', '2007-10-10',13.0, 3, 5.8, 3.5, 0, 61); 

INSERT INTO WINE VALUES(14,'Meritage ','2005', 37.95, 'This powerhouse Meritage offers jammy black fruit, cassis and eucalyptus on the nose, with similar flavours on the palate. Full-bodied, with firm yet ripe tannins and a beautifully long finish', '2004-10-01',13.0, 2.8, 7.5, 3.51, 0, 275); 

INSERT INTO WINE VALUES(15,'Dean''s List Pinot Noir','2007', 32.95, 'With aromas of beet root, earth and sour cherry, this Pinot offers raspberry and vanilla bean on the palate. A medium bodied Pinot with firm, yet ripe tannins leading to a long finish', '2007-10-10',13.5, 4, 5.8, 3.5, 0, 350); 

INSERT INTO WINE VALUES(16,'Shiraz','2006', 18.95, 'With aromas of cracked black pepper, and red fruit, this Shiraz offers flavours of raspberry, plum and spice. Medium bodied with smooth tannins, and a long and lingering finish', '2005-10-25',13.0, 2.3, 6.6, 3.25, 0, 275); 

INSERT INTO WINE VALUES(17,'Cabernet Franc','2007', 18.95, 'This is a very rich Cabernet Franc with an expressive nose of blackberry jam and crème de cassis. Flavours of black fruit, baking spice and black licorice coat the palate, with a pleasant balance between fruit, tannin, acidity and alcohol. Lovely finish', '2007-10-25',13.0, 4, 6.5, 3.63, 0, 458); 

INSERT INTO WINE VALUES(18,'Pinot Noir','2008', 15.95, 'This Pinot provides aromas of black cherry and earth, followed by flavours of sour cherry and vanilla. Light-medium bodied Pinot with smooth tannins, and a lingering finish', '2008-10-07',13.0, 4.5, 6.2, 3.8, 0, 410); 

INSERT INTO WINE VALUES(19,'Merlot','2006', 15.95, 'With aromas of plum, and black cherries, this Merlot offers firm yet ripe tannins and flavours of black berries and currants. Nice finish', '2006-10-24',13.0, 4.4, 6.5, 3.51, 0, 370); 

INSERT INTO WINE VALUES(20,'Cabernet Sauvignon','2006', 15.95, 'With a nose of black fruits and spice, this Cabernet Sauvignon offers flavours of cassis and anise on the palate', '2006-10-29',13.0, 5, 6.7, 3.5, 0, 270); 

INSERT INTO WINE VALUES(21,'Baco Noir','2006', 11.95, 'Little known in the rest of the world, Baco is a signature hybrid for Ontario. This Baco Noir offers aromas of raisin, vanilla and black cherry, with similar flavours on the palate', '2006-09-01',11.5, 5.5, 9.1, 3.32, 0, 140); 

INSERT INTO WINE VALUES(22,'College Red','2008', 10.95, 'This Cabernet Franc/Baco Noir blend offers aromas of jammy fruit, mocha and sweet bell pepper, with similar flavours on the palate. An easy drinking red wine with soft tannins and a pleasant finish', '2008-09-23',12, 3, 7, 3.6, 0, 590);

1.How多天以来，我们收获了2009年冰酒已等待了？

SELECT wineName 
    ,DATEDIFF(DAY, wineHarvest, GETDATE()) AS '# of 
Days Since Harvest' 
FROM WINE 
WHERE wineName LIKE '%Icewine' 
    AND YEAR(wineYear) = '2009';

这一次我的教授告诉我：“有一个看看wineYear列的数据类型，然后问自己什么YEAR（）函数用于然后给它一个尝试。你很关。”但我只是不知道......

2.含糖量最高的葡萄酒的名称，价格和酒精百分比是多少？

SELECT MAX(wineSugar_gl) AS wineName 
    ,winePrice 
    ,wineAlcohol 
FROM WINE;

虽然对于这一个我得到一个错误所有在一起，我不知道如何解决它。我需要它给我看最有糖的葡萄酒的名称价格和酒精百分比。

他们想看起来像这样：

来源

2016-09-23 Bowie

一年函数解析一年了时间，日期，SMALLDATETIME，DATETIME，DATETIME2的，或DATETIMEOFFSET值。您实际上不需要在查询中使用它，因为已经有一列向您显示每种葡萄酒的年份。

SELECT wineName ,DATEDIFF(DAY, wineHarvest, GETDATE()) AS '# of Days Since Harvest' FROM WINE WHERE wineName LIKE '%Icewine' AND wineYear = '2009';
你当前查询运行聚合函数（MAX()） - 这是你不需要在这里。聚合函数用于累积多个行的值。但是，你的价值已经坐在桌子上了！你可以做类似如下：

SELECT TOP 1 wineSugar_gl ,winePrice ,wineAlcohol FROM WINE ORDER BY wineSugar_gl DESC;

来源

2016-09-23 20:02:03 steamrolla

这对谁都没有好做的功课他们。给他们帮助，并指出他们在正确的方向，当然，但不要直接给他们答案... – Siyual

他做了尝试，他问为什么。给出工作解决方案的理由并不是错误的。没有解释给出工作解决方案是一个不同的故事。 – steamrolla

我明白现在是什么问题，但是我同意Siyual同意这个问题，但并不像我刚刚发送问题所说的答案请 – Bowie

-2

自今年列是char（4），你只把它比你的字符串。

SELECT wineName ，DATEDIFF（DAY，wineHarvest，GETDATE（））AS '的天＃由于收获' 取酒 WHERE wineName LIKE '％冰酒' AND wineYear = '2009';
这里的第二个查询

SELECT TOP（1）wineName，winePrice，wineAlcohol取酒 ORDER BY wineSugar_gl DESC

来源

2016-09-23 20:05:14

SQL服务器：作业2个问题都搞不清楚

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