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Adding a new value to an existing ENUM Type
... type
alter table some_table rename column some_column to _some_column;
-- 4. add new column of new type
alter table some_table add some_column some_enum_type not null default 'new';
-- 5. copy values to the new column
update some_table set some_column = _some_column::text::some_enum_type;
-- 6. rem...
How do I view the SQLite database on an Android device? [duplicate]
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edited May 26 '16 at 12:45
Peter Mortensen
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Best way to assert for numpy.array equality?
... ggorlen
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answered Jul 22 '10 at 22:33
JosefJosef
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'Operation is not valid due to the current state of the object' error during postback
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What is “export default” in javascript?
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484
It's part of the ES6 module system, described here. There is a helpful example in that documen...
select count(*) from table of mysql in php
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Kermit
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answered Aug 2 '11 at 5:48
Shakti SinghShakti Singh
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How to present a simple alert message in java?
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241
I'll be the first to admit Java can be very verbose, but I don't think this is unreasonable:
J...
Are soft deletes a good idea? [duplicate]
...hare
edited Apr 15 '10 at 4:01
answered Mar 31 '10 at 1:51
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How to get the number of days of difference between two dates on mysql?
...calculation
In your case, you'd use :
mysql> select datediff('2010-04-15', '2010-04-12');
+--------------------------------------+
| datediff('2010-04-15', '2010-04-12') |
+--------------------------------------+
| 3 |
+-------------------------------------...
What does -> mean in Python function definitions?
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421
It's a function annotation.
In more detail, Python 2.x has docstrings, which allow you to att...