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AngularJS: how to implement a simple file upload with multipart form?
...hen once all uploads are done, client sends another PUT/POST request which extra data and ids of the files that are uploaded for this request. Then the server would save the record with associated files. It is like gmail when you upload files and then send the email.
– danial
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MySQL Conditional Insert
...t have dual already, you need to create it. CREATE TABLE dual ( dummy CHAR(1) DEFAULT 'x' NOT NULL CHECK (dummy = 'x') PRIMARY KEY ); INSERT INTO dual VALUES('x'); REVOKE ALL ON dual FROM PUBLIC; GRANT SELECT ON dual TO PUBLIC;
– Jonathan Leffler
Feb 24 '...
Difference between “git add -A” and “git add .”
.... and by doing that it makes his life easier even after accounting for the extra mental tax added to ensure that there're no sync problems? I wonder why Git doesn't furthur split add -u into two separate commands add -u1 and add-u2 whereby one works for files starting with numerals and the other for...
What are the differences between a pointer variable and a reference variable in C++?
..., the lifetime of that object becomes the lifetime of the reference.
std::string s1 = "123";
std::string s2 = "456";
std::string s3_copy = s1 + s2;
const std::string& s3_reference = s1 + s2;
In this example s3_copy copies the temporary object that is a result of the concatenation. Whereas s3...
How do you increase the max number of concurrent connections in Apache?
...s less which is 200 here, then this means that after 8 child processes, no extra process will start since we have defined an upper cap of MaxClients. This also means that if I set MaxClients to 1000, after 16 child processes and 400 connections, no extra process will start and we cannot service more...
What is a vertical tab?
What was the original historical use of the vertical tab character ( \v in the C language, ASCII 11)?
10 Answers
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Selecting data from two different servers in SQL Server
... ]
[ , [ @location= ] 'location' ]
[ , [ @provstr= ] 'provider_string' ]
[ , [ @catalog= ] 'catalog' ]
Read more about sp_addlinkedserver.
You have to create linked server only once. After creating linked server, we can query it as follows:
select * from LinkedServerName.Datab...
Why are unnamed namespaces used and what are their benefits?
...ace unique;
namespace unique { /* namespace body. stuff in here */ }
The extra step using the empty body is important, so you can already refer within the namespace body to identifiers like ::name that are defined in that namespace, since the using directive already took place.
This means you ca...
Print in one line dynamically
...s about this that may be surprising:
The \r goes at the beginning of the string so that, while the program is running, the cursor will always be after the number. This isn't just cosmetic: some terminal emulators get very confused if you do it the other way around.
If you don't include the last l...
what is faster: in_array or isset? [closed]
...ated and contain non-hashable objects. Keys must be unique and can only be strings and integers which makes them easily hashable. While you could create a one-to-one map that hashes both keys and values, this isn't how PHP's array works.
– David Harkness
Nov 20...