Difference between union and union all?
What is the difference between UNION and UNION ALL?
unicode-math broken Do you want to come with? Can I come with?  I seem to hear this construction more often in recent years, but it still grates on my ear. I know it's often said that one shouldn't , but I class that rule along with  (i.e. — pedantic tosh). Is it always informal/casual speech to end a sentence with &quot;with&quot;? Was it ever thus? Is it possible to sort non-stackable items in minecraft? are super sweet.  But, I have a skeleton farm, and am getting tons of non-stackable drops.  Since armor can be smelted into iron/gold, I'd like to smelt those drops in a furnace, and burn bows in a furnace.  And trash all leather armor.  Is there a way to sort out these non-stackable items in vanilla survival? I created a presentation using the beamer class with texmaker. Right now it looks like this:    Now I would like to include a jpg where the red circle is located, so basically inside a palette. Can anybody help me how to do that?  The code:  \documentclass[t,compress,10pt,xcolor=dvipsnames]{beamer}  \usepackage{lmodern} \usepackage[labelformat=empty,labelsep=none]{subfig} \usepackage{caption} \usepackage{float} \usepackage{wrapfig}  \newcommand*\oldmacro{}% \let\oldmacro\insertshorttitle%  \renewcommand*\insertshorttitle{%   \oldmacro\hfill%  \insertframenumber\,/\,\inserttotalframenumber}  \definecolor{UniDunkel}{RGB}{73,142,137} \definecolor{UniHell}{RGB}{142,184,182}  \setbeamertemplate{blocks}[rounded][shadow=true] \setbeamercolor{structure}{fg=UniDunkel}  \setbeamercolor{block body}{parent=normal text,use=block title, bg=block title.bg!10!bg} \setbeamercolor{block body alerted}{parent=normal text,use=block title  alerted,bg=block title alerted.bg!10!bg} \setbeamercolor{block body example}{parent=normal text,use=block title  example,bg=block title example.bg!10!bg}  \setbeamercolor*{palette primary}{use=structure,fg=white,bg=UniDunkel!115} \setbeamercolor*{palette secondary}{use=structure, fg=UniHell,  bg=UniHell} \setbeamercolor*{palette tertiary}{use=structure,fg=white,bg=UniDunkel!115} \setbeamercolor*{palette quaternary}{fg=Orange}  \setbeamercolor*{sidebar}{use=structure,bg=structure.fg} \setbeamercolor*{palette sidebar primary}{use=structure,fg=structure.fg!10} \setbeamercolor*{palette sidebar secondary}{fg=white} \setbeamercolor*{palette sidebar quaternary}{fg=white} \setbeamercolor*{titlelike}{parent=palette primary}  \setbeamercolor*{fine separation line}{}  \setbeamercolor{block title}{use=structure,fg=white,bg=structure.fg!0!red} \setbeamercolor{block title alerted}{use=alerted text,fg=white,bg=alerted text.fg!0!white} \setbeamercolor{block title example}{use=example text,fg=white,bg=example text.fg!0!white}  \useoutertheme{miniframes} \useinnertheme{circles} \setbeamertemplate{footline}[frame number]  \beamertemplatenavigationsymbolsempty  \begin{document}  \section{Section1} \subsection{Subsection1} \frame { \frametitle{Frame1} }  \section{Section2} \subsection{Subsection2} \frame { \frametitle{Frame2} }   \end{document} Securely erasing all data from a hard drive Scamming a scammer? I have seen many questions like:      My question is: what happens if you receive this money (without doing anything or giving your bank account number) but do not do anything scammer wants?  I especially want to know about what happens with the money you got and possible legal consequences.    Is it considered yours because scammer transfered it to you? Do you have to return it? If yes, to whom and in what form? And finally, how is it that scammers are just sending money to random people? Aren't they scared that someone will simply not return it? I understand that this may be stolen money, but it surely took some effort (cash/time) to "acquire" it, so why are they just sending it away? Merging banking and casual style in moderncv (2) I've just installed Ubuntu on my Lenovo g460  with Windows 7. I am not able to play any movie or mp3 file. When I click on a file I'm asked to install a plugin. When I click on the install button nothing happens. What is the domain of $x^x$ as a real valued function? Consider the function $f(x) = x^x$.  Wolfram alpha tells me that this function's domain is $x : x&gt;0$, $x \in \mathbb{R}$. I can't see why it cannot be defined for a number like $(-2)$. I mean $(-2)^{-2}=0.25$, the same Wolfram Alpha told me. I realize that fractional powers for negative numbers may cause problems, but it could be defined for integers. Thanks for any help. Are there massless bosons at scales above electroweak scale? Spontaneous electroweak symmetry breaking (i.e. $SU(2)\times U(1)\to U(1)_{em}$ ) is at scale about 100 Gev. So, for , gauge bosons $Z$ &amp; $W$ have masses about 100 GeV. But before this spontaneous symmetry breaking ( i.e. Energy > 100 GeV) the symmetry $SU(2)\times U(1)$ is not broken, and therefore gauge bosons are massless.  The same thing happens when we go around energy about $10^{16}$ GeV, where we have the Grand Unification between electroweak and strong interactions, in some bigger group ($SU(5)$, $SO(10)$ or others). So theoretically we should find gauge bosons $X$ and $Y$ with masses about $10^{16}$ GeV after GUT symmetry breaks into the Standard Model gauge group $SU(3)\times SU(2)\times U(1)$, and we should find massless X and Y bosons at bigger energies (where GUT isn't broken).  So this is what happened in the early universe: when temperature decreased, spontaneous symmetry breaking happened and firstly $X$ &amp; $Y$ gauge bosons obtained mass and finally $Z$ &amp; $W$ bosons obtained mass.   Now, I ask: have I understood this correctly? In other words, if we make experiments at energy above the electroweak scale (100 GeV) we are where $SU(2)\times U(1)$ isn't broken and then we should (experimentally) find $SU(2)$ and $U(1)$ massless gauge bosons, i.e. $W^1$, $W^2$, $W^3$ and $B$ with zero mass? But this is strange, because if I remember well in LHC we have just make experiments at energy about 1 TeV, but we haven't discovered any massless gauge bosons. What is the difference between "gender" and "sex"? What is the difference between gender and sex?  says that gender is The mental analog of sex but that's too high English for me.  Basically, I'm developing a web-application that stores people's profile along with a field for gender/sex. Which name would be more appropriate?  __  [UPDATE]  After getting these good answers, I can figure out that,   Sex - Biological characteristics  Gender - Social characteristics   And, well, for my web-application, I went with the term sex, as it sounds more scientific and less political. P.S. Values for sex are clearly defined and can be easily validated (only two values * + an optional blank value).  * plus some anomalies. Formatting should not count towards the character limit on comments Find the value of $\left[\frac{1}{\sqrt 2}+\frac{1}{ \sqrt 3}+......+\frac{1}{\sqrt {1000}}\right]$ Find the value of $$\left[\frac{1}{\sqrt 2}+\frac{1}{\sqrt 3}+.....+\frac{1}{\sqrt {1000}}\right]$$.Where [•] denote the greatest integer function.   I am very confused about this problem. I tried to find the upper and lower bound of the function. But I can't find any formulas to find the bounds. Somebody please help me. Generate three correlated uniformly-distributed random variables SSH to open GUI on target machine? Should I postpone my trip to Paris in 2nd week of Jan in light of recent protests? I’ve a date and I really waited long to make this happen. My gifrfriend is a bit worried about the security issue in Paris. Which locals think that the media is exagerrating the issue and the issue is small and non-threatening for tourists? Let $S = \bigoplus_{n\ge 0} S_n$ be a graded commutative ring. Let $f$ be a homogeneous element of $S$ of degree $&gt; 0$. Let $S_{(f)}$ be the degree $0$ part of the graded ring $S_f$, where $S_f$ is the localization with respect to the multiplicative set $\{1, f, f^2,\dots\}$. Suppose $S$ is finitely generated algebra over $S_0$. Then $S_{(f)}$ is a finitely generated algebra over $S_0$. iOS app stalls phone when on weak wifi sign I've recently noticed a bug on the Stack Exchange IOS app. When I open the Stack Exchange app on weak wifi, it hangs on the blue load screen as it launches and either crashes the app or the entire phone lags and didn't respond for about a minute.  I'm running iOS 8.4.1, I have the most up to date version of the app, and by 'weak' wifi I mean two out of four bars of strength. Allowing users to compile / run PLSQL and SQL As a DBA - assuming my users are knowledgeable with PLSQL and SQL - why would I not grant my users privileges to compile and run their own PLSQL code. We have an MI database environment where the data has undergone ETL. The tables contain a large numbers of rows but not necessarily large rows in size. The analysis - will be - I assume of calculus in nature. The users are wanting to run their own code on the data for the purposes of ad-hoc analysis - within their own schemas. They come from a SAS background which from my understanding has allowed them to write and run their own analysis of data. Albeit, SAS runs on its own dataset - extracted from Oracle or elsewhere.  In my opinion this is a dangerous set-up - but without answering my own question - what are the pitfalls? How to get vertex normals from a shape-key in Python? I'm trying to create an exporter for a format, which includes shape key support. This format requires both vertex coordinates and normals to be specified. This should be logical, because the vertex selected on the image below won't have the same normals:     Comparing it to this one:    But I actually haven't found any way to export shape key normals. Both Bmesh Vertex and ShapeKey Vertex only store the coordinates.  Is there any way to get them?