Long time no blog, recently in the completion of the Rights Management module, today, when restoring the database file, encountered the "System.Data.SqlClient.SqlError: Media set has 2 media families, but only 1 are provided." Must provide all members "This error, Baidu a bit, found the cause and solution.Cause Analysis:1. Backup, the old path is not deleted, I a
-side Save role1. create three layers of objects, inject2, Service/*** @Description: 1, save role 2, role context menu 123,345 3, role Association permissions* @return*/public void Save (Role model, String menuids, integer[] permissionids) {Save the Role object: Persistent StateRoledao.save (model);Role Context Menuif (stringutils. Isnotblank(menuids)) {String[] strings = Menuids.split (",");for (String m
value is auto, not a value of 2. My warm little heart, frozen in an instant, ah ~ ~
Application in
However, for the General page (not similar to the game page, Slide page page), only certain art talents dare to increase the positioning attribute on the body (violate the principle of minimizing influence –part 7), therefore, set the Z-index property on the body general problem is not big, but, from the understanding of speaking, Z-index a little we
on the alarm clock as PM.
If you don't do it, I won't die, I don't want to get up. What do you want to do, set the alarm?! Look, I'm turning you off! Direct click on AM on the alarm, after the small point, it will be like the following image of AM into PM, want to sleep to some time, sleep to some time!
The five-pass:
Shaking equipment, bottle open, smooth clearance.
You think you're stuck in a mob and I can't do it? You think too much! Look at me desperately shaking my hands of the e
2.1 Variable 2.1.1 What is a variableLiterally, variables are variable quantities, and from a programmatic point of view, variables are memory used to store data, each with its own unique name and each variable occupying a memory.In the program, it is not convenient to use the data value directly or the memory address of the data value directly, so we use the name of the variable to represent the corresponding data.Each variable has its variable name, variable type, and scope of the variable.2.1
MSSQL Connection string
(1) OLE DBWindows Authentication
The code is as follows
Copy Code
"Provider=sqloledb;data source=pek7-6tkx23xsqlexpress;initial catalog=test; Trusted_connection=yes; ";SQL Server Authentication"Provider=sqloledb;data source=127.0.0.1sqlexpress;initial catalog=test; User Id=sa; password=123456; ";
(2) SqlConnectionWindows Authentication
Linux Medium Variable $#,[email protected],$0,$1,$2,$*,$$,$? the meaningLet's start by writing a simple script that will explain the meaning of each variable after execution.The script reads as follows:[email protected] ~]# cat Test.txt#!/bin/bashecho "number:$#" echo "Scname:$0" echo "First:" echo "Second:$2" echo " Argume:[email protected] "echo" Show Parm list
1, built-in exception handling class.2. Examples of capturing and handling exceptions.3, the member function of the Exception class GetMessage ().4, the member function of the Exception class GetFile ().5, the member function of the Exception class Getline ().6, display warning or error message.7, custom error handling function.
*/
1, built-in exception handlin
University C + + programming textbook homework after class
Code as follows, and then improve, improve efficiency
#include
#include
using namespace std;
int main () {
int start=100;//a dollar with 100
int sum=0;//conversion number
int a = 1, b = 2, c = 5;//a,b,c for 1 points, 2 points, 5 points
/*ci,bi, Ai
Sickle (4) in 1-2 years, will there be any change in E-commerce?
These two days busy website, no intention to write anything, but in the Web site thinking, think is e-commerce things, I first said a conclusion: can defeat Ma Yun and net Sheng is not his current peers, but the new user needs and the resulting technological innovation. Just like Google beat Bill, new user needs and technological innovation de
How to use:
Pagerquery query = new Pagerquery ();Query.pageindex = 1;Query.pagesize = 20;QUERY.PK = "id";Query.selectclause = "*";Query.fromclause = "TestTable";Query.sortclause = "id desc";
if (!string.isnullorempty (code)){Query.whereclause.append ("and id= @id");}
A the statement generated by the Generatecountsql () method is:Select COUNT (0) from TestTable where 1=
Get the joint likelihood function joint likelihood:
After getting the estimated values of these parameters, give you a new message that can be calculated based on the Bayesian formula
Laplace Smoothing (Laplace smooth)
When a new word is encountered in the message, (0/0) The essence is the enhancement of the spatial dimension of the input sample feature space, and the old model cannot provide valid classification
Saturday.W 7 days a week number for 0 (Sunday) to 6 (Saturday)N iso-8601 a 7-day week of digital representation. 1 expression Monday (Monday) to 7 means Sunday (Sunday)W iso-8601 the number of weeks in a year. Counted weekly from Monday onwards. So there are 01-53, the order is marked for 53 weeks.
DayD, with two digits beginning with 0, represents the day of one months. For example, 01 to 31J is the same as D, except that it doesn't start with 0. F
Sorting problem Description: Often encountered in the development of the "1-2", "1-15" or "1.2", "1.15" data fields to sort, and such a field can not be directly by the way of ordering by. WORKAROUND: Make this data field output into a field that can be sorted directly by a user function: CREATE function dbo. Getnumberorderstring
(
@NumberString NVARCHAR (200),--
numbers: ↑ Last used command: Nohl highlighted words, not highlighting hints: x save exit, change file is similar to Wq; File Open is not operational, change mtime: 1,100s/dnsmasq/aminglinux/g from line 1th to line 100, s means start substitution, replace DNSMASQ with aminglinux,g to replace all1, $s/\/etc\/hosts\//aminglinux/g replace/etc/hosts/with Aminglinux, escape with \ or 1, $s #/etc/hosts/#aminglinux/g or @ symbol delimitedSet NU Display line
Text version:
1, open the photo with PS;2, select cutting Tools, set wide to 3.5cm, high to 5.0cm, the resolution is 300DPI;3, with cutting tools to drag on the photos, adjust the position, size appropriate, double-click in the box, you can get the 2-inch photos you want;4, the new picture, 6 inches wide, 4 inches high, resolution of 300DPI;5, select
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