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How to wait for several Futures?
Suppose I have several futures and need to wait until either any of them fails or all of them succeed.
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Automatic counter in Ruby for each?
I want to use a for-each and a counter:
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How do I obtain a Query Execution Plan in SQL Server?
... Actual Execution Plan" menu item (found under the "Query" menu) is ticked and run your query as normal.
If you are trying to obtain the execution plan for statements in a stored procedure then you should execute the stored procedure, like so:
exec p_Example 42
When your query completes you sh...
Error during installing HAXM, VT-X not working
I am an entry-level Android software developer. I recently heard about HAXM that support emulator in rendering graphics more smoothly. I downloaded appropriate file HAXM file for Windows 7 64 bit, unpacked and started installing. However, during the installation process I get this error:
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How do I remove version tracking from a project cloned from git?
...t folder is hidden so make sure you turn on the Show hidden files, folders and disks option.
From there, you can run git init to create a fresh repository.
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How do I verify that an Android apk is signed with a release certificate?
How can I check that an Android apk is signed with a release and not debug cert?
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How are GCC and g++ bootstrapped?
This has been bugging me for a while. How do GCC and g++ compile themselves?
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Meaning of Open hashing and Closed hashing
... some sort of open addressing strategy. This explains why "closed hashing" and "open addressing" are synonyms.
Contrast this with open hashing - in this strategy, none of the objects are actually stored in the hash table's array; instead once an object is hashed, it is stored in a list which is sep...
Parse JSON in TSQL
...se CLR. It is as simple as that, unless you have a huge masochistic streak and want to write a JSON parser in SQL
Normally, folk ask for JSON output from the DB and there are examples on the internet. But into a DB?
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Using the Swift if let with logical AND operator &&
We know that we can use an if let statement as a shorthand to check for an optional nil then unwrap.
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