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How to create local notifications?
...eate a button in any view controller and in IBAction use below code :
UNMutableNotificationContent *objNotificationContent = [[UNMutableNotificationContent alloc] init];
objNotificationContent.title = [NSString localizedUserNotificationStringForKey:@“Notification!” arguments:nil];
objNotifica...
Can we have multiple in same ?
Can we have multiple <tbody> tags in same <table> ? If yes then in what scenarios should we use multiple <tbody> tags?
...
Update or Insert (multiple rows and columns) from subquery in PostgreSQL
...
For the UPDATE
Use:
UPDATE table1
SET col1 = othertable.col2,
col2 = othertable.col3
FROM othertable
WHERE othertable.col1 = 123;
For the INSERT
Use:
INSERT INTO table1 (col1, col2)
SELECT col1, col2
FROM othertable
You don't ...
Is it possible to decrypt MD5 hashes?
...od guess at someone's password by Googling for the hash or using a Rainbow table. That is one reason why you should always "salt" hashed passwords, so that two identical values, when hashed, will not hash to the same value.
Once a piece of data has been run through a hash function, there is no goin...
How to delete all data from solr and hbase
...
This answer discusses how to delete all the tables in hbase: stackoverflow.com/questions/3990952/…. If you want to just delete the data in the table, you can truncate them rather than drop them.
– codingFoo
Nov 30 '11 at 23:13...
Should I use 'border: none' or 'border: 0'?
...they behave in different ways when combined with other rules.
Borders in a table context in collapsing border model
When a table is rendered using border-collapse: collapse, then each rendered border is shared between multiple elements (inner borders are shared among as neighbor cells; outer borders...
How can I get a specific number child using CSS?
I have a table whose td s are created dynamically. I know how to get the first and last child but my question is:
2 Answ...
django syncdb and an updated model
...ngo currently does not do this automatically. Your options are:
Drop the table from the database, then recreate it in new form using syncdb.
Print out SQL for the database using python manage.py sql (appname), find the added line for the field and add it manually using alter table SQL command. (Th...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...ements are live or static.
These concepts are summarized in the following table.
Function | Live? | Type | Time Complexity
querySelector | N | Element | O(n)
querySelectorAll | N | NodeList | O(n)
getElementById | Y | Element...
When should I use mmap for file access?
...om. (The OS can detect which pages are unmodified by initially marking writable mmap'd pages as read only and catching seg faults, similar to Copy on Write strategy).
mmap is also useful for inter process communication. You can mmap a file as read / write in the processes that need to communica...