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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
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Note: For MySQL 5.7+ please see answer from @Lahiru to this question. That contains more current information.
For MySQL < 5.7:
The default root password is blank (i.e. empty string) not root. So you can just login as:
mysql ...
What is the difference between HAVING and WHERE in SQL?
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HAVING specifies a search condition for a
group or an aggregate function used in SELECT statement.
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Regular expression to search for Gadaffi
I'm trying to search for the word Gadaffi. What's the best regular expression to search for this?
15 Answers
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How fast is D compared to C++?
...r programs with g++, dmd and gdc. dmd does lag behind, but gdc achieves performance very close to g++. The commandline I used was gdmd -O -release -inline (gdmd is a wrapper around gdc which accepts dmd options).
Looking at the assembler listing, it looks like neither dmd nor gdc inlined scalar_pro...
Conversion failed when converting date and/or time from character string while inserting datetime
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There are many formats supported by SQL Server - see the MSDN Books Online on CAST and CONVERT. Most of those formats are dependent on what settings you have - therefore, these settings might work some times - and sometimes not.
The way to...
How do I force files to open in the browser instead of downloading (PDF)?
Is there a way to force PDF files to open in the browser when the option "Display PDF in browser" is unchecked?
13 Answers
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How many threads can a Java VM support?
...g, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, of course. Once the machine hit around 6500 Threads (in Java), the whole machine started to have problems and become unstable.
My experience show...
Reshaping data.frame from wide to long format
...ble has also more parameters that the melt-function from reshape2. You can for example also specify the name of the variable-column:
library(data.table)
long <- melt(setDT(wide), id.vars = c("Code","Country"), variable.name = "year")
which gives:
> long
Code Country year value
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How to unescape HTML character entities in Java?
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I have used the Apache Commons StringEscapeUtils.unescapeHtml4() for this:
Unescapes a string containing entity
escapes to a string containing the
actual Unicode characters
corresponding to the escapes. Supports
HTML 4.0 entities.
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How can I post data as form data instead of a request payload?
... tab). The jQuery $.ajax method does the same call, but submits xsrf as "Form Data".
22 Answers
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