Failed attempt to fetch logical page - tempdb
How might a corrupt partition in TempDB result in DBCC CHECKDB reporting no issue?
If an edit was suggested to an answer to my question and I go to this edit, I see the checkmark How to find out how many games I have won with a specific race on ladder 1v1?  The profile screen just gives me the total wins and losses but I play with all three races and I would like to know my stats per race.  Thanks.  PS: I have been playing Starcraft from the release date but I don't have the old replays as I format my computer often. Is there a known mathematical equation to find the nth prime? I've solved for it making a computer program, but was wondering there was a mathematical equation that you could use to solve for the nth prime? How to extend the background of an image? I'm trying to create a pmatrix whose components are rather complicated fractions (Christoffel symbols), and the line spacing is too small making the whole thing a bit cramped and hard to read.  Is there any easy way to increase the spacing (about 1.5 the default would be perfect)? Pascal's triangle in tikz I would like to typeset the top part of Pascal's triangle. To get the triangle with the names of the binomial coefficients, i.e., {n \choose k}, I used the following code  \begin{tikzpicture} \foreach \n in {0,...,4} {   \foreach \k in {0,...,\n} {     \node at (\k-\n/2,-\n) {${\n \choose \k}$};   } } \end{tikzpicture}   The result is this   Now I want to be equally lazy and do something like this for the values of the binomial coefficients, i.e., replace {\n \choose \k} in the node label with \CalculateBinomialCoefficient{\n}{\k} where \CalculateBinomialCoefficient is a hypothetical macro that calculates the binomial coefficient. Has anyone done something like that?  The result should look like this: Add custom command in the open with dialog? In earlier versions of Ubuntu (10.10-) there was an option in the "open with" tab in the properties window, to add a custom command to open a file. However, this is no longer the case in Ubuntu 11.10. Is there any way that I can add these file type associations with a command of my choice rather than the applications detected by the system. Get the newest file from directory structure year/month/date/time I store backups of databases in a directory structure  year/month/day/time/backup_name  an example would be   basics_mini/2012/11/05/012232/RATIONAL.0.db2inst1.NODE0000.20110505004037.001 basics_mini/2012/11/06/012251/RATIONAL.0.db2inst1.NODE0000.20110505003930.001  note that timestamp from the backup file cannot be used. Before the automation testing starts the server time is set to 5.5.2011  So the question is how I can get the latest file if I pass the "base directory" (basics_mini) to some function that I am going to code.  I need to restore the newest database. I do that in php but I wonder if there is a simple shell scripting solution. How does password salt help against a rainbow table attack? I'm having some trouble understanding the purpose of a salt to a password.  It's my understanding that the primary use is to hamper a rainbow table attack.  However, the methods I've seen to implement this don't seem to really make the problem harder.  I've seen many tutorials suggesting that the salt be used as the following:  $hash =  md5($salt.$password)   The reasoning being that the hash now maps not to the original password, but a combination of the password and the salt.  But say $salt=foo and $password=bar and $hash=3858f62230ac3c915f300c664312c63f.  Now somebody with a rainbow table could reverse the hash and come up with the input "foobar".  They could then try all combinations of passwords (f, fo, foo, ... oobar, obar, bar, ar, ar).  It might take a few more milliseconds to get the password, but not much else.  The other use I've seen is on my linux system.  In the /etc/shadow the hashed passwords are actually stored with the salt.  For example, a salt of "foo" and password of "bar" would hash to this: $1$foo$te5SBM.7C25fFDu6bIRbX1.  If a hacker somehow were able to get his hands on this file, I don't see what purpose the salt serves, since the reverse hash of te5SBM.7C25fFDu6bIRbX is known to contain "foo".  Thanks for any light anybody can shed on this.  EDIT:  Thanks for the help.  To summarize what I understand, the salt makes the hashed password more complex, thus making it much less likely to exist in a precomputed rainbow table.  What I misunderstood before was that I was assuming a rainbow table existed for ALL hashes. How do I convert an argument list to a sequence of arguments? Can Ability Score increases caused by magic items qualify me for feats? As far as I know, only a player character's non-temporary ability scores are considered for taking feats, taking prestige classes, etc. Meanwhile, any ability bonus that comes from spells, or magic items that are in effect only while worn, is not counted (except tomes which increase abilities permanently).  So a Fighter with low Int who wants to qualify for Combat Expertise can't use spells or items that gives an Int bonus to raise it high enough to qualify. Is that right?  For example:  Say our fighter has Str 12, so he can not take the Power Attack feat. Suppose he asks for a spell from the wizard to make his Str 16, or to borrow a ring which provides +4 Str from another character. (Or any other method that will provide him a non-permanent bonus). His Str is now 16. Can he take Power Attack with that non-permanent bonus now? Because after the spell duration ends or he takes off the ring, his Str score will be to low again to qualify for Power Attack. Correct XML serialization and deserialization of "mixed" types in .NET I'm reading An Introduction to Manifolds (Tu) and got confused on p.123 Theorem 11.13. Let me briefly explain what was done before that.  The author defines an embedding between two manifolds $f: N\rightarrow M$ as an injective immersion (differential is injective everywhere) with the additional property that $f(N)$ as a subspace of $M$ is homeomorphic via $f$ to $N$. Then a canonical form theorem is proven, namely, that for any point $p \in N$, there are charts $(U,\phi = x^1, \ldots, x^n) \ni p$ and $(V,\psi = y^1, \ldots, y^m) \ni f(p)$, such that the transition map takes the following form:  $$\psi \circ f \circ \phi^{-1} : (r^1,\ldots,r^n) \mapsto (r^1,\ldots,r^n,0,\ldots,0).$$  (I guess it is implicitly assumed that $f(U) \subset V$).  Now in the process of proving that $f(N) \subset M$ is an , he states that $f(U) \subset V$ is defined by the vanishing of the coordinates $y^{n+1},\ldots,y^m$. I can prove that $$ f(U) \subset \{q \in V: y^{n+1}(q) = \cdots = y^m(q)\} $$ but not the reverse inclusion. Can anyone explain why this should be true? Google Spreadsheets Enter/Return Key Behavior In Microsoft Excel, the default behavior of pressing the Enter (return) key is this:     If you are in a cell, and tab over as   you input data, at the end of the   series when you click Enter, the focus   will go to the cell directly under the   cell that you began the series of   tabs.      For example, if you are in cell A1,   tab over to C1, and then click Enter,   the focus will go to cell A2.   Is there any way to get this behavior in Google Spreadsheets? How to allow to run su instantly after I added the user to the appropriate group Given two sets $A$ and $B$, what is the difference between $A + B$ and $A \cup B$? For example, if $A = \left\{ a, b, c \right\}$ and $B = \left\{ d, e, f \right\}$, what are $A + B$ and $A \cup B$, respectively? New profile pages are out - bugs and feedback master list Two different solutions to integral Oneboxing a Stack Exchange post using HTTPS does not work When you post a link from Stack Exchange into the chatbox using HTTPS, the link does not onebox. However, if you change the link to HTTP, it works. See the screenshot below:    HTTPS URLs should onebox, too. eGPU Vega 56 (Blackmagic) Mac + cycles problem Hello I just got the AMD Radeon RX Vega 56 (blackmagic eGPU Pro) yesterday  plugged it in to my brand new Mac mini (Mojave), it shows up in the menubar and as an alternative as a render engine,. My question is, can I use this eGPU for cycles renders? (Blender 2.80)  Very grateful for your responses.