前面做了那么多不就是为了数据弄几张表么,接下来看看怎么新建表。
一 新建表
语法:
CREATE TABLE database_name.table_name(
column1 datatype PRIMARY KEY(one or more columns),
column2 datatype,
column3 datatype,
.....
colu...
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数据库 时间:
2014-08-12 00:48:53
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205
Description
G
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Renat Mullakhanov (rem), one of the most talented programmers in the world, passed away on March 11, 2011. This is very sad news for
al...
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其他好文 时间:
2014-08-11 21:27:52
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Description
While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is very peculiar because it is a one-way path that delivers you to its destination a...
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其他好文 时间:
2014-08-11 21:26:02
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Description
One cow from each of N farms (1 ≤ N ≤ 1000) conveniently numbered 1..N is going to attend the big cow party to be held at farm #X (1 ≤ X ≤ N). A total of M (1 ≤ M ≤ 100,000) unidirectio...
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其他好文 时间:
2014-08-11 21:23:43
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There is one last gate between the hero and the dragon. But opening the gate isn't an easy task.
There were n buttons list in a straight line in front of the gate and each with an integer on it. Like...
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其他好文 时间:
2014-08-11 21:22:33
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341
8 月 11 日,微软日前向美国证券交易委员会提交的 2014 财年年报显示,自去年 11 月发布 Xbox One 视频游戏机至今,该产品已累计给微软带来了超过 4 亿美元的亏损。 微软年报提供的数据显示,由于发布 Xbox One 带来的制造和广告支出,导致公司 Xbox 业务出现了大幅的亏损....
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其他好文 时间:
2014-08-11 21:02:12
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225
hdu 4908 BestcoderProblem DescriptionMr Potato is a coder.Mr Potato is the BestCoder.One night, an amazing sequence appeared in his dream. Length o...
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其他好文 时间:
2014-08-11 20:34:52
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188
By Andrei Alexandrescu, October 01, 2004
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Lock-free data structures guarantee the progress of at least one thread when executing mutlithreaded procedures, thereby helping you avoid d...
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其他好文 时间:
2014-08-11 18:01:02
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384
Where is the Marble?
Raju and Meena love to play with Marbles. They have got a lot of marbles with numbers written on them. At the beginning, Raju would place the marbles one after ano...
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其他好文 时间:
2014-08-11 17:53:02
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291
一个没有把百酒都尝遍的人,是不会体会到清水之味的~Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more di...
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其他好文 时间:
2014-08-11 17:40:22
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237