not-operator

Should I use `!IsGood` or `IsGood == false`?

I keep seeing code that does checks like this if (IsGood == false) { DoSomething(); } or this if (IsGood == true) { DoSomething(); } I hate this syntax, and always use the following syntax. if (IsGood) { DoSomething(); } or if (!IsGood) { DoSomething(); } Is there any reason to use '== true' or '== false'? Is it ...

Why does this bitwise shift-right appear not to work?

Could someone explain to me why the mask is not shifted to the right at all? You can use anything in place of that 1 and the result will be the same. unsigned mask = ~0 >> 1; printf("%u\n", mask); ...

Easy SQL Syntax NOT LIKE with AND operators seem to be ignored

Thank you so much for helping! Nothing I seem to do works here. What I want to do is remove rows with a certain value in a certain column. Like so: Where SegStart_Date between getdate()-90 and getdate()-1 And q.Center not like 'Collections Center' And q.Center not like 'Cable Store' And q.Center not like 'Business Services C...

MySQL not and not equal operators fail, what gives?

I have a table T that has a column A. A started with a default of NULL. 40 rows later, I changed the default to 1. Three rows had a value of 2. I tried to select all the rows where column A where not 2 and set them to the new default of 1 (which hadn't happened automatically when I altered the table). I first tried: update T set A=...