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Should I index a bit field in SQL Server?
...tains a set of rows for each index value. If you have a range of 1 to 10, then you would have 10 index pointers. Depending on how many rows there are this can be paged differently. If your query looks for the index matching "1" and then where Name contains "Fred" (assuming the Name column is not ...
What exactly are unmanaged resources?
...or will (eventually) release that memory for you.
Unmanaged resources are then everything that the garbage collector does not know about. For example:
Open files
Open network connections
Unmanaged memory
In XNA: vertex buffers, index buffers, textures, etc.
Normally you want to release those u...
SQL: IF clause within WHERE clause
...s follows:
WHERE OrderNumber LIKE
CASE WHEN IsNumeric(@OrderNumber) = 1 THEN
@OrderNumber
ELSE
'%' + @OrderNumber
END
Or you can use an IF statement like @N. J. Reed points out.
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How to unit test abstract classes: extend with stubs?
... are very very very minimal (inherit from the abstract class) and not more.Then, in your Unit Test you can call the abstract method you want to test.
You should test abstract class that contain some logic like all other classes you have.
...
Hg: How to do a rebase like git's rebase
...of interactive rebases because I tend to firstly do lots of small commits, then join, label and clean them up, then merge them back with (or rebase on top of) the main branch. I like coding and managing changes to be separate steps.
– Kos
Aug 7 '12 at 17:45
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Eclipse error: indirectly referenced from required .class files?
...
@Arne, Why does it say indirectly referenced then? Shouldn't it have said that it is not referenced at all?
– Pacerier
Nov 24 '14 at 10:55
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How to check if mysql database exists
...
Worked better then the solution marked correct. Thanks ]
– John williams
Sep 17 '15 at 10:12
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...orward() after sendRedirect() or sendError() on the same request/response, then the chance is big that you will get the exception:
java.lang.IllegalStateException: Cannot forward after response has been committed
If the if statement calls a forward() and you're afterwards calling sendRedirect() or...
What is the recommended way to delete a large number of items from DynamoDB?
...his "masked" delete functionality of BatchWriteItem indeed escaped me back then; I've updated the answer accordingly.
– Steffen Opel
Nov 30 '12 at 15:07
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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... local config = ngx.shared.config;
if not config:get("id") then
config:set("id", "0");
end
while id >= tonumber(config:get("id")) do
local random = math.random(ttl - 10, ttl + 10);
if ngx.time() - now > ...