MFC调用系统调色板和数据库备份和收缩日志

CColorDialog dlg;

dlg.DoModal();

m_crCurColor = dlg.GetColor();//COLORREF m_crCurColor;

BYTE r = GetRValue(m_crCurColor);

BYTE g = GetGValue(m_crCurColor);

BYTE b = GetBValue(m_crCurColor);

数据库备份

Declare @name varchar(250)

EXEC Master..xp_cmdShell ‘echo D:\ &cd D:\ &D: &if not exist database md database‘

Set @name=‘D:\database\naneXXXX _‘+

convert(varchar(50),getdate(),112)+‘.bak‘

BACKUP DATABASE naneXXXX TO

[email protected]

WITH NOFORMAT, NOINIT,

NAME = N‘naneXXXX -完整 数据库 备份‘,

SKIP, NOREWIND, NOUNLOAD

出现问题找不到 ···xp_cmdShell的解决方法：

SQL Server 阻止了对组件 ‘xp_cmdshell‘ 的 过程‘sys.xp_cmdshell‘ 的访问，因为此组件已作为此服务器

选择master数据库执行下面语句

sp_configure ‘show advanced options‘,1

reconfigure

go

sp_configure ‘xp_cmdshell‘,1

reconfigure

go

deleteOldBackup

DECLARE @OLDDATE DATETIME

EXEC Master..xp_cmdShell ‘echo D:\ &cd D:\ &D: &if not exist database md database‘

SELECT @OLDDATE=GETDATE()-7

EXECUTE master.dbo.xp_delete_file 0,N‘D:\database‘,N‘bak‘,@olddate

收缩日志

dump transaction naneXXXX with no_log;

backup log naneXXXX  with no_log;

dbcc shrinkfile(2);