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Add a default value to a column through a migration
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answered Aug 17 '11 at 20:02
Maurício LinharesMaurício Linhares
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How can I add a column that doesn't allow nulls in a Postgresql database?
...default value.
ALTER TABLE mytable ADD COLUMN mycolumn character varying(50) NOT NULL DEFAULT 'foo';
... some work (set real values as you want)...
ALTER TABLE mytable ALTER COLUMN mycolumn DROP DEFAULT;
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Finding all objects that have a given property inside a collection [duplicate]
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20 Answers
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How to define custom exception class in Java, the easiest way?
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402
No, you don't "inherit" non-default constructors, you need to define the one taking a String in...
Test for multiple cases in a switch, like an OR (||)
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edited Oct 4 '15 at 17:08
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answered Jun 28 '11 at 21:58
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Node.js: what is ENOSPC error and how to solve?
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Run the below command to avoid ENOSPC:
echo fs.inotify.max_user_watches=524288 | sudo tee -a /...
SQL WHERE ID IN (id1, id2, …, idn)
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109
Option 1 is the only good solution.
Why?
Option 2 does the same but you repeat the column na...
Breaking out of nested loops [duplicate]
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edited Mar 17 '09 at 10:09
answered Mar 17 '09 at 9:27
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How to create directory automatically on SD card
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answered Jan 25 '10 at 8:33
Jeremy LoganJeremy Logan
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input type=“text” vs input type=“search” in HTML5
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10 Answers
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