When using the mongo shell with JavaScript, is it possible to dynamically set the collection name in order to work with multiple collections?
db.collection.insert()
When using the mongo shell with JavaScript, is it possible to dynamically set the collection name in order to work with multiple collections?
db.collection.insert()
When working in the mongo shell:
You have the ability to create a variable using 'var' for the collection name
var colName = "mytest"
From there, you can perform various operations on collections like so:
db[colName].find()
db[colName].rename("newName")
By doing this, you can maintain a dynamic collection name and still execute commands without any changes.
I hope this explanation proves helpful!
Here's a suggestion to address the problem:
Consider implementing this function to insert data into a specified column:
function insertDataIntoColumn(columnName){
if(!columnName) {
return;
}
return database[columnName].insert();
}
If you're referring solely to the mongo shell:
var col = db.collection;
col.find()
All other commands are also valid for the database:
var odb = db.getSiblingDB("other")
Now, odb will function on the "other" database.
odb.othercollection
This will work with "othercollection" in the "other" database, while db still remains as the current one.
Since it's all written in JavaScript, anything related to an "object" is acceptable.
// This code snippet appears to be functional as well.
var collectionNames = ["collection1", "collection2"];
collectionNames.forEach(function(name) {
var data = db.getCollection(name);
data.find();
});
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