第一张表
BibNum ItemBarcode ItemType Collection CallNumber CheckoutDateTime
第二张表
BibNum Title Author ISBN PublicationYear Publisher Subjects ItemType ItemCollection FloatingItem ItemLocation ReportDate ItemCount
我需要从读者那里获得最受欢迎的作者，BibNum表示每个读者的帐号。我想我可以在第一个表中使用BibNum，ItemType，在第二个表中使用BibNum，Title，Author，ItemType来使用join或者其他东西。 如果您有任何建议和帮助，请赐教。如果您对表格有任何疑问，请告诉我，我会尽力向您澄清。
以下是每个表格中的示例数据
第一张表
1842225 10035249209 acbk namys MYSTERY ELKINS1999 05/23/2005 03:20:00 PM
1928264 10037335444 jcbk ncpic E TABACK 12/14/2005 05:56:00 PM
1982511 10039952527 jcvhs ncvidnf VHS J796.2 KNOW_YO 2000 08/11/2005 01:52:00 PM
2026467 10040985615 accd nacd CD 782.421642 Y71T 10/19/2005 07:47:00 PM
2174698 10047696215 jcbk ncpic E KROSOCZ 12/29/2005 03:42:00 PM
第二张表
3011076 A tale of two friends / adapted by Ellie O'Ryan ; illustrated by Tom Caulfield, Frederick Gardner, Megan Petasky, and Allen Tam. O'Ryan, Ellie 1481425730, 1481425749, 9781481425735, 9781481425742 2014 Simon Spotlight, Musicians Fiction, Bullfighters Fiction, Best friends Fiction, Friendship Fiction, Adventure and adventurers Fiction jcbk ncrdr Floating qna 09/01/2017 1
2248846 Naruto. Vol. 1, Uzumaki Naruto / story and art by Masashi Kishimoto ; [English adaptation by Jo Duffy]. Kishimoto, Masashi, 1974- 1569319006 2003, c1999. Viz, Ninja Japan Comic books strips etc, Comic books strips etc Japan Translations into English, Graphic novels acbk nycomic NA lcy 09/01/2017 1
3209270 Peace, love & Wi-Fi : a ZITS treasury / by Jerry Scott and Jim Borgman. Scott, Jerry, 1955- 144945867X, 9781449458676 2014 Andrews McMeel Publishing, Duncan Jeremy Fictitious character Comic books strips etc, Teenagers United States Comic books strips etc, Parent and teenager Comic books strips etc, Families Comic books strips etc, Comic books strips etc, Comics Graphic works, Humorous comics acbk nycomic NA bea 09/01/2017 1
1907265 The Paris pilgrims : a novel / Clancy Carlile. Carlile, Clancy, 1930- 786706155 c1999. Carroll & Graf, Hemingway Ernest 1899 1961 Fiction, Biographical fiction, Historical fiction acbk cafic NA cen 09/01/2017 1
1644616 Erotic by nature : a celebration of life, of love, and of our wonderful bodies / edited by David Steinberg. 094020813X 1991, c1988. Red Alder Books/Down There Press, Erotic literature American, American literature 20th century acbk canf NA cen 09/01/2017 1
对于此数据，第二个空格键表示每列的每个值。如果您不知道此示例数据的数据含义，请告诉我，我会尝试清楚地显示。
驱动
| bibnum | string | from deserializer |
| title | string | from deserializer |
| author | string | from deserializer |
| isbn | string | from deserializer |
| publicationyear | string | from deserializer |
| publisher | string | from deserializer |
| subjects | string | from deserializer |
| itemtype | string | from deserializer |
| itemcollection | string | from deserializer |
| floatingitem | string | from deserializer |
| itemlocation | string | from deserializer |
| reportdate | string | from deserializer |
| itemcount | string | from deserializer
时间表
| bibnum | string | from deserializer |
| itembarcode | string | from deserializer |
| itemtype | string | from deserializer |
| itemcollection | string | from deserializer |
| callnumber | string | from deserializer |
| checkoutdatetime | string | from deserializer |
0: jdbc:hive2://localhost:10000/default> SELECT t2.Author
. . . . . . . . . . . . . . . . . . . .> FROM timesheet t1
. . . . . . . . . . . . . . . . . . . .> INNER JOIN drivers t2
. . . . . . . . . . . . . . . . . . . .> on t1.BibNum = t2.Bibnum
. . . . . . . . . . . . . . . . . . . .> GROUP BY t2.Author
. . . . . . . . . . . . . . . . . . . .> ORDER BY count(t1.Bibnum) DESC
. . . . . . . . . . . . . . . . . . . .> LIMIT 1;
Error: Error while compiling statement: FAILED: SemanticException [Error 10004]: Line 6:15 Invalid table alias or column reference 't1': (possible column names are: author) (state=42000,code=10004)
0: jdbc:hive2://localhost:10000/default>