SELECT * FROM myTable m WHERE m.userId = :userId AND m.X = (SELECT MAX(X) FROM myTable m WHERE m.userId = :userId
SELECT WCC.WardCensusTypesId, M.MonthsId, WCT.WardCensusTypesName, Y.YearsId, WCC.WardCensusCountsNum FROM WardCensusTypes WCT
I\'m using InnoDB Plugin in the Barracuda file format with: ROW_FORMAT=DYNAMIC If I define a field as VARCHAR(255), and then insert a record that has a NULL value for that field, will that record st
I am making a script for a webpage of mine, where I use jquery to upload files using a hidden iframe. After the uploading is done, the PHP script, that I use for uploading, \"echoes\" a JSON String. T
I\'ve seen code like: 开发者_如何学Cif (delegate != nil && [delegate respondsToSelector:@selector(doSomething)]) ...
I\'ve been using LazyReference class for a few years (not on a regular basis of course, but sometimes it is very useful). The class can be seen here. Credits go to Robbie Vanbrabant (class author) and
I would like to prevent further processing on an object if it is null. In the following code I check if the object is null by either:
Please, can anybody tell me how to assign null to a pointer in this type unsafe code 开发者_运维知识库example...
I wrote a Secret Santa program (ala Ruby Quiz...ish), but occasionally when the program runs, I get an error.
In Groovy language, it is very simple to check for null or false like: groovy code: def some = getSomething()
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