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How do I escape ampersands in batch files?
...I escape ampersands in a batch file (or from the
Windows command line) in order to use the start command to
open web pages with ampersands in the URL?
...
Method has the same erasure as another method in type
...n't ready to make any updates, so you leave your Overrider class alone. In order to correctly override the toList() method, the language designers decided that a raw type was "override-equivalent" to any generified type. This means that although your method signature is no longer formally equal to m...
Computed / calculated / virtual / derived columns in PostgreSQL
...(Not in Postgres 13, yet) .
Related:
Attribute notation for function call gives error
Until then, you can emulate VIRTUAL generated columns with a function using attribute notation (tbl.col) that looks and works much like a virtual generated column. That's a bit of a syntax oddity which exi...
Days between two dates? [duplicate]
...est for calendar checks.
from datetime import timedelta, datetime
def cal_days_diff(a,b):
A = a.replace(hour = 0, minute = 0, second = 0, microsecond = 0)
B = b.replace(hour = 0, minute = 0, second = 0, microsecond = 0)
return (A - B).days
if __name__ == '__main__':
x = datetime...
Select elements by attribute in CSS
... attributes value it only modifies jQuery's cached version of the DOM. In order to change the actual DOM attribute one needs to use $("#element").attr("data-field","value");. Making my original comment invalid.
– ᴍᴀᴛᴛ ʙᴀᴋᴇʀ
Feb 5 '15 at 10:31
...
How can I pad an int with leading zeros when using cout
...ormatted output to a string (char* or char[]) not to console directly. Actually I am writing a function that returns formatted string
– shashwat
Dec 23 '12 at 9:32
14
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HashMap with multiple values under the same key
...t types associated with a key. You have to take care by maintaining proper order of inserting and retrieving from Object[].
Example:
Consider, we want to store Student information. Key is id, while we would like to store name, address and email associated to the student.
//To make entry int...
count(*) vs count(column-name) - which is more correct? [duplicate]
...
COUNT(*) counts all rows
COUNT(column) counts non-NULLs only
COUNT(1) is the same as COUNT(*) because 1 is a non-null expressions
Your use of COUNT(*) or COUNT(column) should be based on the desired output only.
...
Change / Add syntax highlighting for a language in Sublime 2/3
...nstead, I edited the Monokai.tmTheme as per this SublimeText forum post in order to get JSON syntax highlighting to work.
– jmort253
Apr 12 '14 at 23:17
1
...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...`.`innodb_table`' exists. Please DISCARD the tablespace before IMPORT
in order to fix this, what i did was first
create table innodb_table2(`id` int(10) unsigned NOT NULL);
Query OK, 0 rows affected (0.07 sec)
then in the /var/lib/mysql/database_name directory i did the following as root ackn...