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Assembly code vs Machine code vs Object code?
... machine code file in a text editor you would see garbage, including unprintable characters (no, not those unprintable characters ;) ).
Object code is a portion of machine code not yet linked into a complete program. It's the machine code for one particular library or module that will make up the co...
Referring to a Column Alias in a WHERE Clause
...done with parenthesis to force logical order of operation or with a Common Table Expression (CTE):
Parenthesis/Subselect:
SELECT
*
FROM
(
SELECT
logcount, logUserID, maxlogtm,
DATEDIFF(day, maxlogtm, GETDATE()) AS daysdiff
FROM statslogsummary
) as innerTable
WHERE daysdiff...
PDO closing connection
... to keep in mind when using persistent connections. One is that when using table locking on a persistent connection, if the script for whatever reason cannot release the lock, then subsequent scripts using the same connection will block indefinitely and may require that you either restart the httpd ...
Do I have to guard against SQL injection if I used a dropdown?
...yway would look something like this:
curl --data "size=%27%29%3B%20DROP%20TABLE%20*%3B%20--" http://www.example.com/profile/save
(This might not be a totally valid curl command, but again, I hope I've gotten my point across.)
So, I'll reiterate:
NEVER trust user input. ALWAYS protect yourself....
How to float 3 divs side by side using CSS?
...
The modern way is to use the CSS flexbox, see support tables.
.container {
display: flex;
}
.container > div {
flex: 1; /*grow*/
}
<div class="container">
<div>Left div</div>
<div>Middle div</div>
<div>Right div<...
What is the difference between Trap and Interrupt?
..., I/O ports, etc). These are asynchronous (i.e. they don't happen at predictable places in the user code) or "passive" since the interrupt handler has to wait for them to happen eventually.
You can also see a trap as a kind of CPU-internal interrupt since the handler for trap handler looks like an ...
Connection timeout for SQL server
...an you give example for this? I'm using EF6 an i have 3 million data in my table when i do some process program returns timeout error... note:i'm using indexing in table
– saulyasar
Nov 13 '15 at 12:26
...
How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
...password. How does this help to protect passwords against scanning rainbow tables for hashes, which is basically the main idea behind salt?
– Vitaliy Lebedev
Nov 11 '16 at 23:23
13...
What does the construct x = x || y mean?
...se {
return false;
}
}
If you still don't understand, look at this table:
| true false
------+---------------
true | true true
false | true false
In other words, it's only false when both values are false.
How is it different in JavaScript?
JavaScript is a bit differ...
What is the use of GO in SQL Server Management Studio & Transact SQL?
...5 it seems that you can use GO with an int parameter, like:
INSERT INTO mytable DEFAULT VALUES
GO 10
The above will insert 10 rows into mytable. Generally speaking, GO will execute the related sql commands n times.
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