为什么需要触发器 为什么需要触发器(TRIGGER)呢?典型的应用就是银行的取款机系统 假定该系统的数据库设计需要两张表:帐户信息表(bank)存放帐户的信息,交易信息表(transInfo)存放每次的交易信息。 上述结果有什么错误?您一定发现了,当张三取钱200元时,虽然交易信息表(trans.....
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其他好文 时间:
2015-03-04 12:34:06
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199
Suppose a bank has N windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. The rules...
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其他好文 时间:
2015-03-03 13:10:32
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182
最近需要给REVOKE语句增加一个新的语法形式,通过bison编译,发现移进/规约冲突(SHIFT/REDUCT CONFLICT),可以通过拆分语法规则的方式,来解决该问题。...
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其他好文 时间:
2015-03-03 11:44:12
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1148
Suppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. All the c...
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其他好文 时间:
2015-03-03 11:08:22
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196
题目大意:多重背包
一大早就水了个题233
#include
#include
#include
#include
#define M 20200
using namespace std;
int n,k,b[220],c[220];
int f[M];
int main()
{
int i,j,k;
cin>>n;
for(i=1;i<=n;i++)
scanf("%d",...
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其他好文 时间:
2015-03-03 08:38:14
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142
Where‘sthenearbank?It‘sjustaroundthecorner.WhereisPeter?Whereisthedepartmentstore?Whereisthepostoffice?Whereisthenearestbank?Whereisthenearestpostoffice?Whereisthenearestdepartmentstore?It‘sjustaroundthecorner.Where‘stheschool,Please?Where‘sthepostoffice,Pl..
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其他好文 时间:
2015-03-02 15:05:14
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163
Suppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. All the customers have to wait in line behind the yellow li...
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其他好文 时间:
2015-03-02 09:38:56
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160
Suppose a bank has N windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. The rules for the customers to wait in line are:
The spa...
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其他好文 时间:
2015-02-25 21:11:01
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177
链接:click here~~
题意:
描述
LK has a question.Coule you help her?
It is the beginning of the day at a bank, and a crowd of clients is already waiting for the entrance door to open.
Once the ban...
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编程语言 时间:
2015-02-24 13:52:25
阅读次数:
210