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SQL WHERE.. IN clause multiple columns

... You can make a derived table from the subquery, and join table1 to this derived table: select * from table1 LEFT JOIN ( Select CM_PLAN_ID, Individual_ID From CRM_VCM_CURRENT_LEAD_STATUS Where Lead_Key = :_Lead_Key ) table2 ON table1.CM_PLAN_ID=table2.CM_PLAN...
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?

...one this exact task before. But it was mainly to measure power consumption and CPU temperatures. The following code (which is fairly long) achieves close to optimal on my Core i7 2600K. The key thing to note here is the massive amount of manual loop-unrolling as well as interleaving of multiplies a...
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Troubleshooting “Illegal mix of collations” error in mysql

... Another option is to use the BINARY operator: BINARY str is the shorthand for CAST(str AS BINARY). Your solution might look something like this: SELECT * FROM table WHERE BINARY a = BINARY b; or, SELECT * FROM table ORDER BY BINARY a; ...
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setup.py examples?

...ackages on the Python Package Index. Just download the tarball, unpack it, and have a look at the setup.py file. Or even better, only bother looking through packages that list a public source code repository such as one hosted on GitHub or BitBucket. You're bound to run into one on the front page. ...
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Why does changing the sum order returns a different result?

...gnificant digits, where each addition is performed at "infinite" precision and then rounded to the nearest representable number. Here are two sums: 1/3 + 2/3 + 2/3 = (0.3333 + 0.6667) + 0.6667 = 1.000 + 0.6667 (no rounding needed!) = 1.667 (where 1.6667 is rounded to...
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Light weight alternative to Hibernate? [closed]

...n layer in my program. Hibernate appears to require a lot of configuration and is overkill for what I need. What are light weight alternatives to Hibernate? ...
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How are 3D games so efficient? [closed]

...ever understood. How can a great big PC game like GTA IV use 50% of my CPU and run at 60fps while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ? ...
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PHP server on local machine?

I'm trying to build a PHP site and I'm wanting to test my PHP files without uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that? ...
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In git how is fetch different than pull and how is merge different than rebase?

I just cant understand this. I been reading a lot on the web and books and something is just not staying in my head. Can someone please give me the dummy version of the following: ...
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How do I compare version numbers in Python?

...lity but is used by setuptools (so you probably already have it installed) and is conformant to the current PEP 440; it will return a packaging.version.Version if the version is compliant and a packaging.version.LegacyVersion if not. The latter will always sort before valid versions. Note: packagin...