Nowdays, there are lots of varieties of raymond mill companies in market place. So to customers, it is a significant headache to pickraymond mill,raym...
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其他好文 时间:
2014-08-18 12:13:44
阅读次数:
229
Problem Description
TIANKENG manages a restaurant after graduating from ZCMU, and tens of thousands of customers come to have meal because of its delicious dishes. Today n groups of customers come to...
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其他好文 时间:
2014-08-11 00:24:41
阅读次数:
248
1、把主键定义为自动增长标识符类型 MySql 在mysql中,如果把表的主键设为auto_increment类型,数据库就会自动为主键赋值。例如: ??customers(id??auto_increment????,?name?(??customers(name)??...
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数据库 时间:
2014-07-29 18:28:14
阅读次数:
236
插入数据使用 INSERT
插入完整的行插入行的一部分插入多行插入某些查询的结果
插入完整的行
先看一下原有的customer列表:
插入一行:
INSERT INTO customers
VALUES(NULL,
'Pep E. LaPew',
'100 Main Street',
'Los Angeles',
'CA',
'90046',
'U...
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数据库 时间:
2014-07-29 14:24:24
阅读次数:
241
Problem Description
TIANKENG manages a restaurant after graduating from ZCMU, and tens of thousands of customers come to have meal because of its delicious dishes. Today n groups of customers come to...
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其他好文 时间:
2014-07-28 16:03:23
阅读次数:
250
Binding到DataGrid的时候,需要用到ObservableCollection. public ObservableCollection Customers { get { return ...
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其他好文 时间:
2014-07-27 23:01:19
阅读次数:
222
以下的SQL语句以Northwind为例1、不要再where子句中"="的左侧使用函数和表达式,因为系统无法应用函数或表达式中的索引SELECT * FROM Customers WHERE Cast(CustomerID AS VARCHAR(20))='1' --Clustered Index ...
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数据库 时间:
2014-07-18 23:37:10
阅读次数:
376
分享下mysql中如何把主键定义为自动增长标识符类型。1、把主键定义为自动增长标识符类型在mysql中,如果把表的主键设为auto_increment类型,数据库就会自动为主键赋值。例如:create table customers(id int auto_increment primary key...
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数据库 时间:
2014-07-18 21:20:02
阅读次数:
244
Shoemaker's Problem
Shoemaker has N jobs (orders from customers) which he must make. Shoemaker can work on only one job in each day. For each ith job, it is known the integer Ti (1i<=1000...
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其他好文 时间:
2014-07-16 17:12:33
阅读次数:
274
Description
Are you interested in pets? There is a very famous pets shop in the center of the ACM city. There are totally m pets in the shop, numbered from 1 to m. One day, there are n customers in...
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其他好文 时间:
2014-07-16 09:17:29
阅读次数:
325