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How to change a PG column to NULLABLE TRUE?
...ABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;
There's no need to specify the type when you're just changing the nullability.
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How do I find which rpm package supplies a file I'm looking for?
...ermining which package provides an installed application (since it may be different than what is in the current yum repository cache), and yum whatprovides <filename> is best suited for determining which package provides a yet-to-be-installed application. Each has their own purpose.
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node.js shell command execution
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A simplified version of the accepted answer (third point), just worked for me.
function run_cmd(cmd, args, callBack ) {
var spawn = require('child_process').spawn;
var child = spawn(cmd, args);
var resp = "";
child...
TaifunPlayer 扩展（Audio Player）：音频播放器扩展，支持流媒体播放控制 ...
... 搜索 TaifunPlayer 扩展（Audio Player）：音频播放器扩展，支持流媒体播放控制
TaifunPlayer 扩展（Audio Player）
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What's the shortest code to cause a stack overflow? [closed]
...resents the Befunge stack becomes too large for the browser to reallocate. If you had a simple Befunge interpreter with a smaller and bounded stack--as is the case with most of the languages below--this program would cause a more noticeable overflow faster.
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屏幕控制使用指导 · App Inventor 2 中文网
...鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + 'px'; element.style.top = (e.clientY - offsetY) + 'px'; }; // 鼠标释放时停止拖动 document.onmouseup = function(...
Navigation drawer - disable swipe
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StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
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Exit single-user mode
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This solution would not work for me on SQL Server 2016. If I query master..sysprocesses, I see several rows appear, but then the rows are replaced with an error message that the given database is in single user mode, etc.
– youcantryreachingme
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Include CSS,javascript file in Yii Framework
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@user1077220 It makes no difference.
– Dzhuneyt
Jan 6 '13 at 13:38
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Create table with jQuery - append
...ppending the tr to the div here_table.
Edit: Here is a JavaScript version if performance is a concern. Using document fragment will not cause a reflow for every iteration of the loop
var doc = document;
var fragment = doc.createDocumentFragment();
for (i = 0; i < 3; i++) {
var tr = doc.cr...