SQL日历表数据的简单生成
为了公司考勤系统的需要
编写的几个简单存储过程(可以手动运行,也可以设置事务自动运行!感觉还行比较通用,写出来共享下)
Calendar表结构很简单,2个字段:
fdDate 日期
fdType 考勤类型(工作日N,周末W,节假日H[需要根据需要自己修改])
--判断一段时间范围内的工作日（N）和周末（W）
Create PROCEDURE [dbo].[NewMonthWeekDay_Calendar]
@sdate smalldatetime,
@edate smalldatetime
AS
declare @fdDate smalldatetime
declare @WeekDay varchar(20)
declare cr0 cursor for
select fdDate from calendar where fddate>=@sdate and fddate<=@edate
open cr0
fetch next from cr0 into @fdDate
while @@fetch_status=0
begin
if (datename(weekday,@fdDate)='星期一')
update calendar set fdType='N' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期二')
update calendar set fdType='N' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期三')
update calendar set fdType='N' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期四')
update calendar set fdType='N' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期五')
update calendar set fdType='N' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期六')
update calendar set fdType='W' where fdDate=@fdDate
if (datename(weekday,@fdDate)='星期日')
update calendar set fdType='W' where fdDate=@fdDate
fetch next from cr0 into @fdDate
end
close cr0
deallocate cr0
--根据年和月自动插入Calendar表新日期数据
Create PROCEDURE [dbo].[NewMonth_Calendar]
@Year int,
@Month int
AS
Select TOP 50 ID = Identity(Int, 0, 1) Into #T from SysColumns
insert into cas..calendar(fdDate)
Select Convert(Varchar(10), DateAdd(dd, ID, Cast(Rtrim(@Year) + '-' + Rtrim(@Month) + '-' + '01' As DateTime)), 120) from #T
W
相关文档：
--日期转换参数,值得收藏
select CONVERT(varchar, getdate(), 120 )2004-09-12 11:06:08
select replace(replace(replace(CONVERT(varchar, getdate(), 120 ),'-',''),' ',''),':','')20040912110608
select CONVERT(varchar(12) , getdate(), 111 )2004/09/12
select CONVERT(varchar(12) , getdate(), 112 )20040912 ......
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BuildQuery
{
/// <summary>
/// 使用提供的数据建立一个SQL查询
/// </summary>
public class BuildQuery
{
#region 类的变量
int numFieldsCount, ......
use myoa
select * from
delete from department where departmentid=1
insert Department(DepartmentId,DepartmentName) values(1,'技术部')
update Department set departmentname='信息技术部' where departmentid=1
--删除表
drop table department
--删除数据库
drop database bai
--统计数据库表中记录
se ......
在LINQ to Entities中没有办法再像 LINQ to SQL 中一样使用 Contains 的方法来实现sql "in" 关键字
下面代码在 LINQ to SQL 中可行 在LINQ to Entities却无法运行：
var s = db.Account.Select(c => c.ID);
var ret =(from t in db.Profile
where&n ......
日志文件满而造成SQL数据库无法写入文件时，可用两种方法：
一种方法：清空日志。
1．打开查询分析器，输入命令
DUMP TRANSACTION 数据库名 WITH NO_LOG
2.再打开企业管理器--右键你要压缩的数据库--所有任务--收缩数据库--收缩文件--选择日志文件--在收缩方式里选择收缩至XXM,这里会给出一个允许收缩� ......
