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How do I find a “gap” in running counter with SQL?
...change your TOP value, to show more gap results.
– AJ_
Mar 28 '19 at 13:43
1
Thanks, this works v...
Filter by property
... them:
With a Manager:
class CompanyManager(models.Manager):
def with_chairs_needed(self):
return self.annotate(chairs_needed=F('num_employees') - F('num_chairs'))
class Company(models.Model):
# ...
objects = CompanyManager()
Company.objects.with_chairs_needed().filter(chairs...
Sanitizing strings to make them URL and filename safe?
...//github.com/OWASP/PHP-ESAPI
https://www.owasp.org/index.php/Category:OWASP_Enterprise_Security_API
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How do you know a variable type in java?
...?
– Miguel Ribeiro
Apr 20 '10 at 11:32
5
@Miguel: since the only way you can handle an int value ...
SQLite add Primary Key
...OB,
PRIMARY KEY (field2, field1)
);
Reference: http://www.sqlite.org/lang_createtable.html
This answer does not address table alteration.
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How do I calculate the date in JavaScript three months prior to today?
...tedMonth) {
result.setDate(0);
}
return result;
}
var dt2004_05_31 = new Date("2004-05-31 0:00"),
dt2001_05_31 = new Date("2001-05-31 0:00"),
dt2001_03_31 = new Date("2001-03-31 0:00"),
dt2001_02_28 = new Date("2001-02-28 0:00"),
result = addMonths(dt2001_05_31, -2...
What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
...ortTypeProperties(ints.AsQueryable());
The results:
Compile-time type: Int32[]
Actual type: Int32[]
Compile-time type: IEnumerable`1
Actual type: Int32[]
Compile-time type: IQueryable`1
Actual type: EnumerableQuery`1
There it is. AsQueryable() has converted the array into an EnumerableQuery, whi...
How do I find duplicates across multiple columns?
...4,'jim','London')
, (904835,'jim','London')
, (90145,'Fred','Paris')
, (90132,'Fred','Paris')
, (90133,'Fred','Paris')
, (923457,'Barney','New York') # not expected in result
;
SELECT
t.*
FROM (
SELECT
s.*
, COUNT(*) OVER (PARTITION BY s.name, s.city) AS qty
FROM stuff...
Disable developer mode extensions pop up in Chrome
...
Aryan Beezadhur
93255 silver badges2222 bronze badges
answered Jun 24 '16 at 10:37
Antony HatchkinsAntony Hatchkins
...
Can table columns with a Foreign Key be NULL?
...NGINE=INNODB;
CREATE TABLE child (id INT NULL,
parent_id INT NULL,
FOREIGN KEY (parent_id) REFERENCES parent(id)
) ENGINE=INNODB;
INSERT INTO child (id, parent_id) VALUES (1, NULL);
-- Query OK, 1 row affected (0.01 sec)
INSERT INTO child (id, parent_id)...