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Creating a copy of a database in PostgreSQL [closed]
...reate database dialog but you should be able to execute the following in a query window if it doesn't:
CREATE DATABASE newdb WITH TEMPLATE originaldb OWNER dbuser;
Still, you may get:
ERROR: source database "originaldb" is being accessed by other users
To disconnect all other users from the d...
What is sharding and why is it important?
...The advantage is the number of rows in each table is reduced (this reduces index size, thus improves search performance). If the sharding is based on some real-world aspect of the data (e.g. European customers vs. American customers) then it may be possible to infer the appropriate shard membership ...
Open URL under cursor in Vim with browser
...word = expand("<cword>")
let url = "http://www.google.com/search?q=" . keyword
let path = "C:/Program Files/Mozilla Firefox/"
exec 'silent !"' . path . 'firefox.exe" ' . url
endfun
You should use getline('.') and matchstr() to extract url under cursor. The rest is the same.
...
Redirect to external URI from ASP.NET MVC controller
...
Using JavaScript
public ActionResult Index()
{
return Content("<script>window.location = 'http://www.example.com';</script>");
}
Note: As @Jeremy Ray Brown said , This is not the best option but you might find useful in some situations.
Hope...
Thread-safe List property
...t<T> it does not guarantee ordering. Also you cannot access items by index.
– Radek Stromský
Mar 7 '13 at 13:56
12
...
How can I add a help method to a shell script?
...
@sigur, make sure you quote "$usage" every place you use it.
– glenn jackman
Dec 24 '16 at 15:10
1
...
Android ViewPager with bottom dots
... Simplify to this: private void setDotSelection(int index) { dot1.setImageResource(index == 0 ? R.drawable.circle_selected : R.drawable.circle); dot2.setImageResource(index == 1 ? R.drawable.circle_selected : R.drawable.circle); ...
How to reshape data from long to wide format
...ear "value" column. Try dat <- data.frame(id=c(1,1,2,2),blah=c(8,4,7,6),index=c(1,2,1,2)); dcast(dat, id ~ index); cast(dat, id ~ index) and you will not get what you expect. You need to explicitly note the value/value.var - cast(dat, id ~ index, value="blah") and dcast(dat, id ~ index, value.var...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...DbConnector
diff --git a/DbConnector b/DbConnector
new file mode 160000
index 0000000..c3f01dc
--- /dev/null
+++ b/DbConnector
@@ -0,0 +1 @@
+Subproject commit c3f01dc8862123d317dd46284b05b6892c7b29bc
虽然 DbConnector 是工作目录中的一个子目录，但 Git 还是会将它视...
Javascript Array.sort implementation?
...7 - 891
var QuickSort = function QuickSort(a, from, to) {
var third_index = 0;
while (true) {
// Insertion sort is faster for short arrays.
if (to - from <= 10) {
InsertionSort(a, from, to);
return;
}
if (to - from > 1000) {
third_inde...