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select count(*) from table of mysql in php
...mysql_query("SELECT count(*) as total_count from Students ") or exit(mysql_error());
$row = mysql_fetch_object($num_result);
echo $row->total_count;
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How to present a simple alert message in java?
...alog
You can use JOptionPane. (WARNING_MESSAGE or INFORMATION_MESSAGE or ERROR_MESSAGE)
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You asked me to pull without telling me which branch you want to merge with
... trying git --set-upstream <branch> origin/<branch> you get an error as the flag is deprecated. It is recomended to use git branch --track origin/<branch> or --set-upstream-to as the second answer suggested. I guess the answer could be updated, @MarkLongair ?
–...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...- snip -- snip ----------8<-------------
To get the code to work sans error msg's to stderr, I had to add the single quotes arount the variable assignments for %%a, %%b and %%c. My locale (PT) was causing errors at one stage in the looping/parsing where stuff like "set =20" was getting execute...
Extracting hours from a DateTime (SQL Server 2005)
...(Date()) . I can't extract hours, with HOUR(Date()) . I get the following error.
11 Answers
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WPF Textblock, linebreak in Text attribute
...hing to do with the .NET version installed. There are no exceptions and no errors other than the visual elements don't display correctly.
– Charles
Dec 15 '09 at 21:29
add a c...
What is 'Pattern Matching' in functional languages?
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head :: List a -> a
-- An empty list has no first item, so we raise an error.
head Nil = error "empty list"
-- If we are given a `Cons`, we only want the first part; that's the list's head.
head (Cons h _) = h
Since List a values can be of two different kinds, we need to handle each one...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...F_LEN];
ifstream in("test.txt");
if (! in.is_open())
{
cout << "Error opening file";
exit (-1);
}
while ( !in.eof() )
{
in.getline(buffer, MAX_BUF_LEN);
cout << buffer << endl;
}
return 0;
}
Java读写文件:
import java.io.File;
import java.io.FileInputSt...
Is there a good JavaScript minifier? [closed]
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Does UglifyJS support es6? all tools I've found throw's errors since I use a lot of es6 functionality in my files.
– kinger6621
Apr 16 '17 at 6:47
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How to filter rows in pandas by regex
...rue, na=False)]
Result:
a b
1 2 foo
na=False is to prevent Errors in case there is nan, null etc. values
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