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Show pending migrations in rails
...ils db:migrate:status (Rails 5) will accomplish this. See this commit.
up means the migration has been run. down means the migration has not been run.
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
... any one of the columns need not be (and ordinarily isn't) unique."
this means that either field could possibly have a non unique value provided the combination is unique and this does not match your foreign key constraint.
most likely you want the constraint to be at column level. so rather the...
How to configure Sublime Text 2/3 to use direct Ctrl+Tab order and to create new tabs after the last
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@Breakthrough What do you mean?
– Jay
Jun 6 '16 at 17:00
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How do you remove a Cookie in a Java Servlet
...o set MaxAge to 0 instead.
From the API documentation:
A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits. A zero value causes the cookie to be deleted.
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Left Join With Where Clause
...FT JOIN
`character_settings`
ON `character_settings`.`setting_id` = `settings`.`id`
AND `character_settings`.`character_id` = '1'
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Maven check for updated dependencies in repository
...0.1-RELEASE, not 3.0.1.RELEASE. In other words, I'm not sure it's a bug (I mean, sure, I'd expect the plugin to report 3.0.1.RELEASE as newer too, but I'm not sure this would be accepted as a bug).
– Pascal Thivent
Apr 29 '10 at 12:27
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Pointer vs. Reference
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Explain what you mean by arithmetic. A new user may not understand that you want to adjust what the pointer is pointing at.
– Martin York
Sep 22 '08 at 16:30
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What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?
...g a request to /customers/41224d776a326fb40f000001 and a document with _id 41224d776a326fb40f000001 does not exist, doc is null and I'm returning a 404 :
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SQL “select where not in subquery” returns no results
...L:
SELECT *
FROM common
LEFT JOIN
table1 t1
ON t1.common_id = common.common_id
WHERE t1.common_id IS NULL
NOT EXISTS:
SELECT *
FROM common
WHERE NOT EXISTS
(
SELECT NULL
FROM table1 t1
WHERE t1.common_id = common.common_id
)
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How to delete from multiple tables in MySQL?
...ement.
DELETE p, pa
FROM pets p
JOIN pets_activities pa ON pa.id = p.pet_id
WHERE p.order > :order
AND p.pet_id = :pet_id
Alternatively you can use...
DELETE pa
FROM pets_activities pa
JOIN pets p ON pa.id = p.pet_id
WHERE p.order > :order
AND p.pet_...