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SQLite - UPSERT *not* INSERT or REPLACE
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VALUES (1, 'John Foo', 'CEO');
BAD: This will insert or replace 2 of the columns... the NAME column will be set to NULL or the default value:
INSERT OR REPLACE INTO Employee (id, role)
VALUES (1, 'code monkey');
GOOD: Use SQLite On conflict clause
UPSERT support in SQLite! UPSERT ...
When should I use the new keyword in C++?
...less of which control path is taken, or if exceptions are thrown.
Method 2 (not using new)
Allocates memory for the object on the stack (where all local variables go) There is generally less memory available for the stack; if you allocate too many objects, you risk stack overflow.
You won't ne...
Is Javascript a Functional Programming Language?
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edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Oct 18 '10 at 19:37
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Why does “git difftool” not open the tool directly?
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2 Answers
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How to remove a key from a Python dictionary?
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To delete a key regardless of whether it is in the dictionary, use the two-argument form of dict...
How to specify new GCC path for CMake
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Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake:
export CC=/u...
What is the purpose of the -m switch?
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The first line of the Rationale section of PEP 338 says:
Python 2.4 adds the command line switch -m to allow modules to be located using the Python module namespace for execution as scripts. The motivating examples were standard library modules such as pdb and profile, and the Python 2.4 ...
Find document with array that contains a specific value
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edited Apr 2 '19 at 23:50
Cody Gray♦
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What is context in _.each(list, iterator, [context])?
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220
The context parameter just sets the value of this in the iterator function.
var someOtherArra...
BACKUP LOG cannot be performed because there is no current database backup
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Originally, I created a database and then restored the backup file to my new empty database:
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