大约有 10,000 项符合查询结果（耗时：0.0223秒） [XML]
Which method performs better: .Any() vs .Count() > 0?
...ter than Any().
When you run Table.Any(), it will generate something like(alert: don't hurt the brain trying to understand it)
SELECT
CASE WHEN ( EXISTS (SELECT
1 AS [C1]
FROM [Table] AS [Extent1]
)) THEN cast(1 as bit) WHEN ( NOT EXISTS (SELECT
1 AS [C1]
FROM [Table] AS [Exten...
How to get process ID of background process?
I start a background process from my shell script, and I would like to kill this process when my script finishes.
7 Answers...
Echo tab characters in bash script
How do I echo one or more tab characters using a bash script?
When I run this code
10 Answers
...
Case insensitive comparison of strings in shell script
The == operator is used to compare two strings in shell script. However, I want to compare two strings ignoring case, how can it be done? Is there any standard command for this?
...
window.location.reload with clear cache [duplicate]
I want to reload a page using JavaScript but I want to clear cache too, so on page refresh the page has latest versions of everything from server.
Other browsers except IE are not getting latest content.
...
What is a simple command line program or script to backup SQL server databases?
...
There's a good script to backup all user databases in one go here: mssqltips.com/tip.asp?tip=1070
– Marnix van Valen
Sep 22 '09 at 14:47
...
What's the difference between Perl's backticks, system, and exec?
...nc,
because it is a function.
system
executes a command and your Perl script is continued after the command has finished.
The return value is the exit status of the command.
You can find documentation about it in perlfunc.
backticks
like system executes a command and your perl script is c...
How to output something in PowerShell
I am running a PowerShell script from within a batch file. The script fetches a web page and checks whether the page's content is the string "OK".
...
How to require a controller in an angularjs directive
...ion() {
this.doSomethingScreeny = function() {
alert("screeny!");
}
}
}
})
.directive('component', function() {
return {
scope: true,
require: '^screen',
controller: function($scope) {
this.componentFunction...
Copy/duplicate database without using mysqldump
...ATE TABLE x LIKE y;
(See the MySQL CREATE TABLE Docs)
You could write a script that takes the output from SHOW TABLES from one database and copies the schema to another. You should be able to reference schema+table names like:
CREATE TABLE x LIKE other_db.y;
As far as the data goes, you can al...