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Dropping Unique constraint from MySQL table
...AINT unq_tab_id UNIQUE(id));
-- checking constraint name if autogenerated
SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_NAME = 'tab';
-- dropping constraint
ALTER TABLE tab DROP CONSTRAINT unq_tab_id;
db<>fiddle demo
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Mongoose populate after save
... post.populate('group', 'name').populate({
path: 'wallUser',
select: 'name picture'
}, function(err, doc) {
res.json(doc);
});
});
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NoSql vs Relational database
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Well, you can't do SELECT blob FROM images WHERE blob CONTAINS('red car'). So while you can store the data raw in the database, you can't search it without attaching metadata. Full-text-search modules in RDBMS systems bridges some of the semi-s...
How do you version your database schema? [closed]
...bles. I then copy the data over from the old database using INSERT INTO x SELECT FROM y and then apply all indexes, constraints and triggers.
New tables, new columns, deleted columns all get handled automatically and with a few little tricks to adjust the copy routine I can handle column renames, ...
How does one change the language of the command line interface of Git?
...nment variables, in priority order:
LANGUAGE
LC_ALL
LC_xxx, according to selected locale category: LC_CTYPE, LC_NUMERIC, LC_TIME, LC_COLLATE, LC_MONETARY, LC_MESSAGES, ...
LANG
Variables whose value is set but is empty are ignored in this lookup.
LANG is the normal environment variable ...
How to output something in PowerShell
...ream to stderr, so that with 2> you can capture the error-stream output selectively; the following outputs just 'hi' - the success-stream output - while capturing the error-stream output in file err.txt:
C:\>powershell -noprofile -command "'hi'; Write-Error error!" 2>err.txt
The desir...
AngularJS-Twig conflict with double curly braces
... life-saver for me . I couldnt use {{param}} inside Filter: { {{param}} : $select.search} and your solution fixed it. Thanks
– balron
Feb 18 '19 at 17:20
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Keyboard shortcut to comment lines in Sublime Text 2
In Sublime Text 2 , how do I enclose a selection in a comment ?
Is there a keyboard shortcut for this action?
15 Answer...
NSAttributedString add text alignment
... least it displayed the line as centered, but the thing seems to be buggy, selection doesn't work properly with centered text.
– omz
Jul 24 '11 at 0:53
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How to save a plot as image on the disk?
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How do I do this when R asks for a "Selection"? For example If I use m3=garchFit(~arma(3,0)+garch(1,1)) and plot(m3).
– jacob
Jan 25 '16 at 13:28
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