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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...
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 ...
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...
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...
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)...
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
...