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How SID is different from Service name in Oracle tnsnames.ora
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Quote by @DAC
In short: SID = the unique name of
your DB, ServiceName = the alias used
when connecting
Not strictly true. SID = unique name of the INSTANCE (eg the oracle process running on the machine). Oracle considers the "Database" to be the files.
Service ...
How to Convert Boolean to String
...eed it for it might not be the best sulution.
– Androme
May 8 '10 at 18:43
1
@DoomStone I know it...
Capture iframe load complete event
Is there a way to capture when the contents of an iframe have fully loaded from the parent page?
6 Answers
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How do I print out the contents of an object in Rails for easy debugging?
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I generally first try .inspect, if that doesn't give me what I want, I'll switch to .to_yaml.
class User
attr_accessor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=30>
puts u...
MySQL SELECT only not null values
Is it possible to do a select statement that takes only NOT NULL values?
9 Answers
9
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Core Data: Quickest way to delete all instances of an entity
... delete objects matching a predicate without having to load them all in to memory. Here's how you'd use it:
Swift 5
let fetchRequest: NSFetchRequest<NSFetchRequestResult> = NSFetchRequest(entityName: "Car")
let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
do {
try my...
TextView - setting the text size programmatically doesn't seem to work
...ady am familiar with java, i just thought it would really be useful to become familiar with as many of the classes as possible. It seems that using XML sort of hides a lot of that from you.
– cspam
Aug 9 '11 at 16:03
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How to remove selected commit log entries from a Git repository while keeping their changes?
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git-rebase(1) does exactly that.
$ git rebase -i HEAD~5
git awsome-ness [git rebase --interactive] contains an example.
Don't use git-rebase on public (remote) commits.
Make sure your working directory is clean (commit or stash your current changes).
Run the above command. It launches y...
How do you fade in/out a background color using jquery?
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This exact functionality (3 second glow to highlight a message) is implemented in the jQuery UI as the highlight effect
https://api.jqueryui.com/highlight-effect/
Color and duration are variable
share
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Find all controls in WPF Window by type
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This should do the trick
public static IEnumerable<T> FindVisualChildren<T>(DependencyObject depObj) where T : DependencyObject
{
if (depObj != null)
{
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObj); i++)
{
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