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Check if table exists in SQL Server
...implified the ability to check for non-existent objects prior to dropping, by adding the if exists keywords to drop statements. For example,
drop table if exists mytablename
will do the same thing as OBJECT_ID / INFORMATION_SCHEMA wrappers, in 1 line of code.
https://blogs.msdn.microsoft.com/sq...
How to make all Objects in AWS S3 bucket public by default?
...into the editor and hit save.
All your items in the bucket will be public by default.
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Spring mvc @PathVariable
...se url www.mydomain.com/order/123, then orderId variable will be populated by value 123 by spring
Also note that PathVariable differs from requestParam as pathVariable is part of URL.
The same url using request param would look like www.mydomain.com/order?orderId=123
API DOC
Spring Official Refe...
Is Random class thread safe?
...s thread safe in the sense it will still generate random numbers when used by multiple threads.
The Sun/Oracle JVM implementation uses synchronized and AtomicLong as seed to improve consistency across threads. But it doesn't appear to be guarenteed across all platforms in the documentation.
I woul...
Which is more correct: … OR …
...; around the <h1> and the css display property is block (which it is by default) the entire block (the height of the <h1> and 100% of the width of the container the <h1> resides in) will be clickable.
Historically you could not put a block element inside of an inline element, but ...
Android notification is not showing
...e
Android 8 introduced a new requirement of setting the channelId property by using a NotificationChannel.
private NotificationManager mNotificationManager;
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(mContext.getApplicationContext(), "notify_001");
Intent ii = new Inte...
jQuery Validate Required Select
... rule to true but it always passes validation because zero index is chosed by default. Is there any way to define empty value that is used by required rule?
...
Heroku 'Permission denied (publickey) fatal: Could not read from remote repository' woes
.....
A common key error is: Permission denied (publickey). You can fix this by using keys:add to notify Heroku of your new key.
In short follow these steps: https://devcenter.heroku.com/articles/keys
First you have to create a key if you don't have one:
ssh-keygen -t rsa
Second you have to add t...
onCreateOptionsMenu inside Fragments
...tContentView(R.id.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
I hope this answer can be helpful for someone with the same problem.
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How to create a Custom Dialog box in android?
...E);
setContentView(R.layout.custom_dialog);
yes = (Button) findViewById(R.id.btn_yes);
no = (Button) findViewById(R.id.btn_no);
yes.setOnClickListener(this);
no.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_...