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When should I use Kruskal as opposed to Prim (and vice versa)?
...s an obscure term to use, for example what is the "average size" of a hash table? no idea.
– yairchu
Jul 29 '09 at 11:28
2
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MySQL: Set user variable from result of query
...r = @user;
SELECT * FROM user WHERE `group` = @group;
Test case:
CREATE TABLE user (`user` int, `group` int);
INSERT INTO user VALUES (123456, 5);
INSERT INTO user VALUES (111111, 5);
Result:
SET @user := 123456;
SELECT @group := `group` FROM user WHERE user = @user;
SELECT * FROM user WHERE `...
How can I stop a Postgres script when it encounters an error?
... Yes, and not to forget continuing when it encounters DDL Create table errrors... (version: postrgres 10). Yes, it skips one table and goes onto the others...
– JL Peyret
Jan 23 '19 at 9:30
...
Mod of negative number is melting my brain
...he way, here's a reason why using a single % might be a good idea. See the table What things cost in managed code in the article Writing Faster Managed Code: Know What Things Cost. Using % is similarly expensive to int div listed in the table: about 36 times more expensive than adding or subtracting...
Add alternating row color to SQL Server Reporting services report
...
Go to the table row's BackgroundColor property and choose "Expression..."
Use this expression:
= IIf(RowNumber(Nothing) Mod 2 = 0, "Silver", "Transparent")
This trick can be applied to many areas of the report.
And in .NET 3.5+ Y...
What are CFI directives in Gnu Assembler (GAS) used for?
...
To disable these, use the gcc option
-fno-asynchronous-unwind-tables
-fno-dwarf2-cfi-asm may be needed also.
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Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
...ler automatically. This is very common when you have some kind of lists or tables, where you add rows or cells dynamically, but want them all to behave in the same way. Instead of going to all the pain of assigning event handlers anew every time, you can use the .live method:
<a class="myLink"&g...
What is `related_name` used for in Django?
...ted name is a must in case there 2 FKs in the model that point to the same table. For example in case of Bill of material
@with_author
class BOM(models.Model):
name = models.CharField(max_length=200,null=True, blank=True)
description = models.TextField(null=True, blank=True)
tomateria...
What's the meaning of interface{}?
...ucted of two words of data:
one word is used to point to a method table for the value’s underlying type,
and the other word is used to point to the actual data being held by that value.
Addendum: This is were Russ's article is quite complete regarding an interface structure:
t...
Does Java read integers in little endian or big endian?
...ch brief published about it long ago. I simply used a 256 element look up table with the bits reversed (table[0x01]=0x80 etc.) after each byte was shifted in from the bit stream.
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