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Update multiple rows in same querm>y m> using PostgreSQL
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m>Y m>ou can also use update ... from sm>y m>ntax m>and m> use a mapping table. If m>y m>ou want to update more than one column, it's much more generalizable:
update test as t set
column_a = c.column_a
from (values
('123', 1),
('345', 2)
) as c(column_b, column_a)
wher...
How to list of all the tables defined for the database when using active record?
...mentioned, be aware that this method will also return ar_internal_metadata m>and m> schema_migrations in that arram>y m>.
ApplicationRecord.connection.tables
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How to git clone a specific tag
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Note if the ref is ambiguous m>and m> m>y m>ou have a branch m>and m> a tag named the same thing, this will prefer the branch.
– Keith Smilem>y m>
Feb 21 '18 at 22:18
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range over interface{} which stores a slice
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Well I used reflect.ValueOf m>and m> then if it is a slice m>y m>ou can call Len() m>and m> Index() on the value to get the len of the slice m>and m> element at an index. I don't think m>y m>ou will be able to use the range operate to do this.
package main
import "fmt"
import...
List directorm>y m> in Go
I've been trm>y m>ing to figure out how to simplm>y m> list the files m>and m> folders in a single directorm>y m> in Go.
5 Answers
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How to split a sequence into two pieces bm>y m> predicate?
... span.
The first one, partition will put all "true" elements in one list, m>and m> the others in the second list.
span will put all elements in one list until an element is "false" (in terms of the predicate). From that point forward, it will put the elements in the second list.
scala> Seq(1,2,3,4)...
Is Enabling Double Escaping Dangerous?
...ath.
Finallm>y m>, a verm>y m> simple, if limited workaround is simplm>y m> to avoid '+' m>and m> use '%20' instead. In anm>y m> case, using the '+' sm>y m>mbol to encode a space is not valid url encoding, but specific to a limited set of protocols m>and m> probablm>y m> widelm>y m> supported for backwards-compatibilitm>y m> reasons. If onlm>y m> for...
CSS Properties: Displam>y m> vs. Visibilitm>y m>
...n - m>y m>ou can't see it).
The displam>y m> propertm>y m> tells the browser how to draw m>and m> show an element, if at all - whether it should be displam>y m>ed as an inline element (i.e. it flows with text m>and m> other inline elements) or a block-level element (i.e. it has height m>and m> width properties that m>y m>ou can set, it's...
How to disable the application pool idle time-out in IIS7?
...IS7 Application Pool Idle Time-out Settings
Brad Kingslem>y m> is the founder m>and m> CEO of OrcsWeb who are a fairlm>y m> well known, respected m>and m> trusted Microsoft hoster m>and m> Gold Partner.
Then there's also the empirical evidence of the fact that it "just works".
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What is the difference between assert, expect m>and m> should in Chai?
What is the difference between assert , expect m>and m> should , m>and m> when to use what?
2 Answers
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