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Only read selected columns
... only the first 6 months (7 columns) for each year of the data below, for example by using read.table() ?
4 Answers
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how to make twitter bootstrap submenu to open on the left side?
...the items in the main menu are too long, as in this fiddle: jsfiddle.net/szx4Y/446 Anyone have a quick idea for a fix?
– Aaron Lifshin
Jan 16 '15 at 18:47
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Center a position:fixed element
I would like to make a position: fixed; popup box centered to the screen with a dynamic width and height. I used margin: 5% auto; for this. Without position: fixed; it centers fine horizontally, but not vertically. After adding position: fixed; , it's even not centering horizontally.
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Replace input type=file by an image
..., so I was wondering if I could use a " clickable " image which would act exactly as an input type file (show the dialog box, and same $_FILE on submitted page).
I found some workaround here , and this interesting one too (but does not work on Chrome =/).
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How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
I have an MS SQL Server 2008 Express system which contains a database that I would like to 'copy and rename' (for testing purposes) but I am unaware of a simple way to achieve this.
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转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
转：postfix安装Q&A 原文地址：http: bbs.chinaunix.net viewthread.php?tid=770141执照wangmingda老大的资料安装成功postfix（地址在这里http: www.extmail....
原文地址：http://bbs.chinaunix.net/viewthread.php?tid=770141
执照wangmingda老大...
ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...so, flush operation will help in similar cases, I have shared my detailed explanation on this page rathishkumar.in/2018/10/…
– Rathish
Oct 22 '18 at 8:25
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“unrecognized selector sent to instance” error in Objective-C
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Abstract Class vs Interface in C++ [duplicate]
...an interface instead of an abstract class in C++? Could you give some examples?
5 Answers
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