drop all indexes mongodb
db.getCollectionNames().forEach(function(collName) {
db.runCommand({dropIndexes: collName, index: "*"});
});drop all indexes mongodb
db.getCollectionNames().forEach(function(collName) {
db.runCommand({dropIndexes: collName, index: "*"});
});$removefromset mongodb
> db.collection.update(
... {"StudentName": "John"},
... {$pull: { "StudentHobby": "Cooking"}});
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 })Copyright © 2021 Codeinu
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