Talk about the difference between INNER JOIN and LFET JOIN.
Talk about the difference between INNER JOIN and LFET JOIN.
相关考题：
查询商品单价在10到50之间、并且日销售数量高于20的商品名、单价、销售日期和销售数量，查询结果按单价降序。正确命令是A．SELECT商品名，单价，销售日期，销售数量FROM商品JOIN销售 WHERE(单价BETWEEN 10 AND 50)AND销售数量20 ORDER BY单价DESCB．SELECT商品名，单价，销售日期，销售数量FROM商品JOIN销售 WHERE(单价BETWEEN 10 AND 50)AND销售数量20 ORDER BY单价C．SELECT商品名，单价，销售日期，销售数量FROM商品，销售 WHERE(单价BETWEEN 10 AND 50)AND销售数量20 ON商品．商品号=销售．商品号ORDER BY单价D．SELECT商品名，单价，销售日期，销售数量FROM商品，销售 WHERE(单价BETWEEN 10 AND 50)AND销售数量20 AND商品．商品号=销售．商品号ORDER BY单价DESC
3．Is her lifestyle. the same as yours or ________? What are the________?A． difference， differentB． different ，differenceC． different ，differencesD． difference ， differences
A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week according to the National Weather Service.According to the NWS a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.Temperatures across the Midwest will drop into the 60s and 70s-a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and WashingtonThe cool breezes may be a welcome relief this time around but remember the last few times we got hit with Arctic air？Temperatures in cities including Chicago Cleveland New York and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we’re sure you rememberWhat’s the temperature when the report was written?A. About 60s and 70sB. Between 60s and 90sC. Below 60sD. About 80s and 90s
资料：We never thought we'd say this, but we'd welcome back some chilly weather.A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week, according to the National Weather Service.According to the NWS, a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week.Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington.The cool breezes may be a welcome relief this time around, but remember the last few times we got hit with Arctic air?Temperatures in cities including Chicago, Cleveland, New York, and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we're sure you remember.What’s the temperature when the report was written?A.About 60s and 70s.B.Between 60s and 90s.C.Below 60s.D.About 80s and 90s.
Between 1845 and 1854,about 1.5 million Irishmen emigrated to United States because of（）AfamineBEnglish oppressionCwarDBoth AB
4、以下内连接的语法格式正确吗？ select ＜列名列表＞ from ＜子表＞ [Inner] join ＜父表＞ on ＜子表.外键＞ = ＜父表.主键＞