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How can you represent inheritance in a database?
...----------------+----------+----------------+------------------+
| 1 | 2010-08-20 12:00:00 | MOTOR | 01-A-04004 | NULL |
| 2 | 2010-08-20 13:00:00 | MOTOR | 02-B-01010 | NULL |
| 3 | 2010-08-20 14:00:00 | PROPERTY | NULL | Oxford Street |
|...
Unable to update the EntitySet - because it has a DefiningQuery and no element exis
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1037
It usually happens because one of the following reasons:
Entity Set is mapped from Database ...
How do I debug an MPI program?
...t a full-featured debugger (a full-featured debugger would never scale to 208k cores), but it will tell you which groups of processes are doing the same thing. You can then step through a representative from each group in a standard debugger.
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How does delete[] “know” the size of the operand array?
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Lightness Races in Orbit
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answered Oct 13 '08 at 14:10
Peter KühneP...
What is a “batch”, and why is GO used?
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107
GO is not properly a TSQL command.
Instead it's a command to the specific client program which ...
What does “coalgebra” mean in the context of programming?
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+150
Algebras
I think the place to start would be to understand the idea of an algebra. This is just a generalization of algebraic structu...
How to escape special characters in building a JSON string?
...e this list of special character used in JSON :
\b Backspace (ascii code 08)
\f Form feed (ascii code 0C)
\n New line
\r Carriage return
\t Tab
\" Double quote
\\ Backslash character
However, even if it is totally contrary to the spec, the author could use \'.
This is bad because :
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What's a concise way to check that environment variables are set in a Unix shell script?
...oughts on this discussion? https://github.com/koalaman/shellcheck/issues/380#issuecomment-145872749
The gist of the discussion is:
… However, when I shellcheck it (with version 0.4.1), I get this message:
In script.sh line 13:
: ${FOO:?"The environment variable 'FOO' must be set and non-empty"}...
Add a column to existing table and uniquely number them on MS SQL Server
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answered Sep 20 '08 at 14:01
Simon JohnsonSimon Johnson
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What's the use of ob_start() in php?
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Fabien Ménager
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answered Dec 9 '10 at 18:57
Riley DuttonRiley Du...