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How to hide databases that I am not allowed to access
...ku - Postgresql database via pgAdmin3 , It lists all the tables (about 2600). Every time I open the pgAdmin3 I have to find my own database.
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What does the double colon (::) mean in CSS?
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It means pseudo element selector. It means the element to the right doesn't exist in the normal ...
How to find a table having a specific column in postgresql
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edited Aug 29 '13 at 10:46
answered Aug 29 '13 at 10:39
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How do you suppress output in IPython Notebook?
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ZeroZero
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Where is the 'tests output pane'?
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edited May 23 '17 at 12:26
Community♦
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answered Jun 11 '13 at 18:25
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RESTful Authentication via Spring
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edited Jan 8 '15 at 17:25
bluish
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answered...
Learning Ant path style
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edited Jun 20 at 9:12
Community♦
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answered Mar 25 '14 at 13:30
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What is std::string::c_str() lifetime?
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edited Nov 14 '14 at 20:49
answered Jun 23 '11 at 15:15
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Create unique constraint with null columns
..., menu_id, recipe_id)
WHERE menu_id IS NOT NULL;
CREATE UNIQUE INDEX favo_2col_uni_idx ON favorites (user_id, recipe_id)
WHERE menu_id IS NULL;
This way, there can only be one combination of (user_id, recipe_id) where menu_id IS NULL, effectively implementing the desired constraint.
Possible dra...
How to use MySQL DECIMAL?
...cial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact representation in FLOAT or DOUBLE types.
DECIMAL ...