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TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
...set-unicode-utf8.html, max 3 bytes for utf-8.
THIS IS A ROUGH ESTIMATION TABLE FOR QUICK DECISIONS!
So the worst case assumptions (3 bytes per utf-8 char) to best case (1 byte per utf-8 char)
Assuming the english language has an average of 4.5 letters per word
x is the number of bytes allocated
...
DateTime2 vs DateTime in SQL Server
...or new
work. These types align with the SQL
Standard. They are more portable.
time, datetime2 and datetimeoffset
provide more seconds precision.
datetimeoffset provides time zone
support for globally deployed
applications.
datetime2 has larger date range, a larger default fractional ...
Group by with multiple columns using lambda
...
@Jacob - Anonymous types are immutable classes with properly overriden GetHashCode & Equals methods. They where designed for exactly this kind of use case.
– Enigmativity
Aug 4 '11 at 2:57
...
Find XOR of all numbers in a given range
...f() function calculates the XOR total run from [0, a]. Take a look at this table for 4-bit numbers:
0000 <- 0 [a]
0001 <- 1 [1]
0010 <- 3 [a+1]
0011 <- 0 [0]
0100 <- 4 [a]
0101 <- 1 [1]
0110 <- 7 [a+1]
0111 <- 0 [0]
1000 <- 8 [a]
1001 <- 1 [1]
1010 <- 11 [...
Add UIPickerView & a Button in Action sheet - How?
... to show the action sheet with a modal view controller containing a simple tableview.
There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of op...
How to use greater than operator with date?
...ecords. What I did is to include time, see below example
SELECT * FROM my_table where start_date > '2011-01-01 01:01:01';
share
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...
HashMap and int as key
...putForNullKey(value);
int hash = hash(key);
int i = indexFor(hash, table.length);
for (Entry<K,V> e = table[i]; e != null; e = e.next) {
Object k;
if (e.hash == hash && ((k = e.key) == key || key.equals(k))) {
V oldValue = e.value;
e....
Is it better to return null or empty collection?
...omponent (from a library out of your control), might be rendering an empty table if an empty collection is passed, or no table at all, if null is passed.
in a Object-to-XML (JSON/whatever), where null would mean the element is missing, while an empty collection would render a redundant (and possibly...
App Inventor 2 TableView 拓展：TableView 拓展：数据表格视图，表格展示...
...索 App Inventor 2 TableView 拓展：TableView 拓展：数据表格视图，表格展示数据
TableView 拓展
使用方法
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TableView 拓展
效果如下...
Where can I get a “useful” C++ binary search algorithm?
...
There is a set of them:
http://www.sgi.com/tech/stl/table_of_contents.html
Search for:
lower_bound
upper_bound
equal_range
binary_search
On a separate note:
They were probably thinking that searching containers could term up more than one result. But on the odd occasion ...