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How to find a Java Memory Leak
...ncludes a "trace" ID. You can then search for that "TRACE nnnn" to see the top few frames of the stack where the object was allocated. Often, once I see where the object is allocated, I find a bug and I'm done. Also, note that you can control how many frames are recorded in the stack with the option...
SqlException from Entity Framework - New transaction is not allowed because there are other threads
... DB.
The first loop doesn't need to skip anything, so is simpler.
SELECT TOP (100) -- the chunk size
[Extent1].[Id] AS [Id],
[Extent1].[Name] AS [Name],
FROM [dbo].[Clients] AS [Extent1]
ORDER BY [Extent1].[Id] ASC
Subsequent calls need to skip previous chunks of results, ...
When to use Common Table Expression (CTE)
...WID() in the CTE changes when the CTE is referenced more than once. select top 100 * into #tmp from master..spt_values order by 1,2,3,4 select A.number, COUNT(*) from #tmp A inner join #tmp B ON A.number = B.number+1 group by A.number vs with CTE AS (select top 100 * from master..spt_values order b...
What does git rev-parse do?
...1.
There are other use cases as well (in scripts and other tools built on top of git) that I've used for:
--verify to verify that the specified object is a valid git object.
--git-dir for displaying the abs/relative path of the the .git directory.
Checking if you're currently within a repository ...
How can I propagate exceptions between threads?
...u're looking for: it can automagically trap exceptions that make it to the top of the worker thread, and pass them through to the parent thread at the point that std::future::get is called. (Behind the scenes, this happens exactly as in @AnthonyWilliams' answer; it's just been implemented for you al...
Python Process Pool non-daemonic?
... The important parts are the two classes NoDaemonProcess and MyPool at the top and to call pool.close() and pool.join() on your MyPool instance at the end.
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
import multiprocessing
# We must import this explicitly, it is not imported by the top-level
# m...
What is the best way to implement constants in Java? [closed]
...bclasses, declare them as either protected or public and place them on the top class in the hierarchy. This way, the subclasses can access these constant values (and if other classes access them via public, the constants aren't only valid to a particular class...which means that the external classe...
What is the meaning of the prefix N in T-SQL statements and when should I use it?
...is an Nvarchar
This query fails to match Exact Value That Exists.
SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = 'ESKİ'
// 0 result
using prefix N'' fixes it
SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = N'ESKİ'
// 1 result - found!!!!
Why? Because latin1_general doesn't have big dotted...
SQL JOIN and different types of JOINs
...e other way round and start with cross join and then "build" inner join on top of it. After all, the mere concept of cross join invalidates these informal and inaccurate Venn diagram visualisations...
– Lukas Eder
Apr 21 '17 at 17:25
...
Is functional GUI programming possible? [closed]
...apjax-lang.org/ is an implementation of functional reactive programming on top of JavaScript.
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