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How to speed up insertion performance in PostgreSQL
...ack-on-errors to "Transaction" by specifying Protocol=-1 in the connection string. By default psqlodbc uses "Statement" level, which creates a SAVEPOINT for each statement rather than an entire transaction, making inserts slower.
Use server-side prepared statements by specifying UseServerSidePrepare...
Pretty-print C++ STL containers
... that match those criteria but aren't actually containers, like std::basic_string. Also like Marcelo's version, it uses templates that can be specialized to specify the delimiters to use.
The major difference is that I've built my version around a pretty_ostream_iterator, which works similar to the...
How do I grant myself admin access to a local SQL Server instance?
...LE [sysadmin] ADD MEMBER [<<DOMAIN\USERNAME>>]; and do not add extra semicolon after GO or the command never executes.
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When are C++ macros beneficial? [closed]
...e original snippet: << FILE ":" << is fine, FILE generates a string constant, which will be concatenated with the ":" into a single string by the pre-processor.
– Frank Szczerba
Mar 19 '09 at 23:59
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How can I convert tabs to spaces in every file of a directory?
...
DO NOT USE SED! If there's an embedded tab in a string, you may end up mangling your code. This is what expand command was meant to handle. Use expand.
– David W.
Nov 12 '13 at 17:11
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What is The Rule of Three?
... actually means.
Let us consider a simple example:
class person
{
std::string name;
int age;
public:
person(const std::string& name, int age) : name(name), age(age)
{
}
};
int main()
{
person a("Bjarne Stroustrup", 60);
person b(a); // What happens here?
b = ...
List of Delphi language features and version in which they were introduced/deprecated
... easier.
Inline variables with automatic type inference
8 bit AnsiChar/AnsiString support in enable on Linux.
C++Builder and Delphi now use the same ABI for all calls.
Delphi 10.2 Tokyo
Support for Linux server apps (Intel 64-bit using LLVM and ARC).
Assigning a dynamic arrays to a pointer usi...
Pull to refresh UITableView without UITableViewController
...le view itself inherits from scroll view.
It only requires that and a few extra connections :)
Hope this helps.
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What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
... in C++11, where it is specified as containing "an implementation-defined string" (C++11 §8.4.1[dcl.fct.def.general]/8), which is not quite as useful as the specification in C. (The original proposal to add __func__ to C++ was N1642).
__FUNCTION__ is a pre-standard extension that some C compilers ...
Find current directory and file's directory [duplicate]
...h) (returns "the directory name of pathname path")
os.getcwd() (returns "a string representing the current working directory")
os.chdir(path) ("change the current working directory to path")
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