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Postgis installation: type “geometry” does not exist
I am trying to create table with Postgis. I do it by this page . But when I import postgis.sql file, I get a lot of errors:
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How to break out of a loop from inside a switch?
...tate() ) {
execute();
}
bool isValidState() {
return msg->state != DONE;
}
Advantages
No flag. No goto. No exception. Easy to change. Easy to read. Easy to fix. Additionally the code:
Isolates the knowledge of the loop's workload from the loop itself.
Allows someone maintaining the code...
When to use Task.Delay, when to use Thread.Sleep?
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Or when you don't want to chew up CPU in a main loop.
– Eddie Parker
May 20 '14 at 21:23
5
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SQL Server Profiler - How to filter trace to only display events from one database?
How do I limit a SQL Server Profiler trace to a specific database? I can't see how to filter the trace to not see events for all databases on the instance I connect to.
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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...n your exception-throwing to existing exceptions in the Framework. If you do decide to use existing exceptions, you don't absolutely have to follow the documentation to the letter. The documentation will describe how the framework uses a given exception, but doesn't imply any limitation on how you...
Running Bash commands in Python
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Don't use os.system. It has been deprecated in favor of subprocess. From the docs: "This module intends to replace several older modules and functions: os.system, os.spawn".
Like in your case:
bashCommand = "cwm --rdf test....
Can I use CASE statement in a JOIN condition?
...ion_id THEN 1
ELSE 0
END = 1
Note that you need to do something with the returned value, e.g. compare it to 1. Your statement attempted to return the value of an assignment or test for equality, neither of which make sense in the context of a CASE/THEN clause. (If BOOLEAN w...
What is the fastest way to compute sin and cos together?
...NCOS was added at 387 processors, so you can hardly find a processor which doesn't support it.
Edit:
Intel's documentation states that FSINCOS is just about 5 times slower than FDIV (i.e., floating point division).
Edit:
Please note that not all modern compilers optimize calculation of sine and co...
Convert int to string?
...how you went off on that tangent. The OP didn't ask how to make sure a random reference was an integer and then convert it to a string. Perhaps in that case you have a point, but that is not the case.
– AaronM
Jun 22 '18 at 23:46
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What is :: (double colon) in Python when subscripting sequences?
...an use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
10 Answe...