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Convert Rows to columns using 'Pivot' in SQL Server
I have read the stuff on MS pivot tables and I am still having problems getting this correct.
8 Answers
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How to declare variable and use it in the same Oracle SQL script?
I want to write reusable code and need to declare some variables at the beginning and reuse them in the script, such as:
10...
Difference between core and processor
What is the difference between a core and a processor?
6 Answers
6
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How to join absolute and relative urls?
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@mesuutt try to make a loop and join each part with the previously joined URL.
– Cédric Julien
Apr 23 '13 at 7:35
2
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How to pass macro definition from “make” command line arguments (-D) to C source code?
I usually pass macro definitions from "make command line" to a "makefile" using the option :
-Dname=value. The definition is accessible inside the makefile.
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Ruby class instance variable vs. class variable
...mmon to that class without having sub-classes automatically also get them (and vice-versa). With class variables, you have the convenience of not having to write self.class from an instance object, and (when desirable) you also get automatic sharing throughout the class hierarchy.
Merging these t...
Why isn't sizeof for a struct equal to the sum of sizeof of each member?
...y alignment constraints. Data structure alignment impacts both performance and correctness of programs:
Mis-aligned access might be a hard error (often SIGBUS).
Mis-aligned access might be a soft error.
Either corrected in hardware, for a modest performance-degradation.
Or corrected by emulation...
Editing legend (text) labels in ggplot
I have spent hours looking in the documentation and on StackOverflow, but no solution seems to solve my problem. When using ggplot I can't get the right text in the legend, even though it's in my dataframe. I have tried scale_colour_manual , scale_fill_manual with different values for labels=...
git rebase without changing commit timestamps
...-committer-date-is-author-date option seems to leave the author timestamp, and set the committer timestamp to be the same as the original author timestamp, which is what the OP Olivier Verdier wanted.
I found the last commit with the correct date and did:
git rebase --committer-date-is-author-dat...
What does 'wb' mean in this code, using Python?
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File mode, write and binary. Since you are writing a .jpg file, it looks fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there ar...