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How does a hash table work?
... to keep the detailed information (the records) for their approximately 30,000 clients. Each file folder were clearly identified with its client number, a unique number from 0 to 29,999.
The filing clerks of that time had to quickly fetch and store client records for the working staff. The staff ...
What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...
The last sentence * 1,000,000: So if you ever see a NCDFE with no root cause, you need to see if you can track back to the very first time the class was loaded to find the cause of the error.
– batwad
Feb 6 '...
How to get error message when ifstream open fails
...)
$ ./test ./test
opened ./test
$ ./test $(printf '%0999x')
failed to open 000...000: File name too long (system:36)
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Does Java 8 provide a good way to repeat a value or function?
...e inlined well.
Here's the code:
public static final int LIMIT = 500_000_000;
public static final long VALUE = 3L;
public long range() {
return
LongStream.range(0, LIMIT)
.parallel()
.map(i -> VALUE)
.map(i -> i...
How to iterate through two lists in parallel?
...ated using the timeit() function where the number of repetitions used was 1000 times. One of the Python scripts that I had created to perform these investigations is given below. The sizes of the foo and bar lists had ranged from 10 to 1,000,000 elements.
Results:
For printing purposes: The perform...
What are the best practices for using a GUID as a primary key, specifically regarding performance?
...on - using INT vs. GUID as Primary and Clustering Key:
Base Table with 1'000'000 rows (3.8 MB vs. 15.26 MB)
6 nonclustered indexes (22.89 MB vs. 91.55 MB)
TOTAL: 25 MB vs. 106 MB - and that's just on a single table!
Some more food for thought - excellent stuff by Kimberly Tripp - read it, read ...
Efficiently convert rows to columns in sql server
... don't know the number of rows. Lets talk about converting a table with 10.000.000 millions of records
– tbag
Apr 1 '13 at 14:32
11
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When should I use cross apply over inner join?
...bly less efficient.
Update:
Just checked.
master is a table of about 20,000,000 records with a PRIMARY KEY on id.
This query:
WITH q AS
(
SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS rn
FROM master
),
t AS
(
SELECT 1 AS id
...
Can “using” with more than one resource cause a resource leak?
...[1] class [System.Drawing]System.Drawing.Font font4,
[2] bool CS$4$0000
)
IL_0000: nop
IL_0001: ldstr "Arial"
IL_0006: ldc.r4 10
IL_000b: newobj instance void [System.Drawing]System.Drawing.Font::.ctor(string, float32)
IL_0010: stloc.0
.try
{
IL_0011:...
Is there a wikipedia API just for retrieve content summary?
...d hits in search engines.\nAs of April 2014, Stack Overflow has over 2,700,000 registered users and more than 7,100,000 questions. Based on the type of tags assigned to questions, the top eight most discussed topics on the site are: Java, JavaScript, C#, PHP, Android, jQuery, Python and HTML."
...