Is there a pouchdb API to check if a remote database exists?
There is a db.info()
method, but that requires a db
object and using the following to create a db
object will also create the target if it doesn't already exist:
var db = new PouchDB(url);
The schema_name command is used to check if a MySQL database exists or not. The syntax of this command is as follows − Now, the above command is used to check whether the database exists or not.
Oh, right: as we noted, our query returns a collection of all the files with the Name C:\Scripts\Test.vbs. To determine whether or not the file exists all we have to do is check the Count of the collection; as the name implies, the Count tells you the number of items in the collection.
Note: We can check how many databases are present in MySQL with the help of the show command. Now, we can choose the name of a particular database with the help of the use command. The query is given as follows − We can also check the number of tables that are present in a particular database.
Checking remote port status is a common task for Linux admin. Now we collect 5 different ways for this task. We don't need to install any package if we use the following two python commands. We need install the package if we choose nc, nmap,telnet. Use nc command nc -zvw10 192.168.0.1 22 Use nmap command nmap 192.168.0.1 -p 22
Yup, just use the skip_setup
option:
var db = new PouchDB('http://localhost:5984/i_dont_exist', {skip_setup: true});
db.info()
.then(console.log.bind(console))
.catch(console.log.bind(console));
This will throw an error:
{
status: 404,
name: 'not_found',
message: 'missing',
error: true,
reason: 'no_db_file'
}
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