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How to list all collections in the Mongo shell?
To list all collections in Mongo shell, you can use the function getCollectionNames().
The syntax is as follows −
db.getCollectionNames();
You can use another command which is collections. The syntax is as follows −
show collections;
To list all collections in Mongo, use the above two functions. The query is as follows −
> db.getCollectionNames();
The following is the output −
[ "ConvertStringToDateDemo", "IdUpdateDemo", "ProductsInformation", "addFieldDemo", "addNewFieldToEveryDocument", "arrayInnerElementsDemo", "arrayLengthGreaterThanOne", "arrayOfArraysDemo", "caseInsensitiveDemo", "changeDataType", "changeType", "charactersAllowedDemo", "charactersDemo", "checkFieldContainsStringDemo", "checkSequenceDemo", "combinationOfArrayDemo", "conditionalSumDemo", "convertStringToNumberDemo", "copyThisCollectionToSampleDatabaseDemo", "countDemo", "createSequenceDemo", "distinctCountValuesDemo", "distinctRecordDemo", "distinctWithMultipleKeysDemo", "employeeInformation", "filterArray", "findAllDuplicateKeyDocumentDemo", "findByMultipleArrayDemo", "findDuplicateByKeyDemo", "findDuplicateRecordsDemo", "findSpecificValue", "findValueInArrayWithMultipleCriteriaDemo", "getLastNRecordsDemo", "getParticularElementFromArrayDemo", "getPartuclarElement", "getSizeOfArray", "groupByDateDemo", "incrementValueInNestedArrayDemo", "insertIfNotExistsDemo", "nestedArrayDemo", "notLikeOpeartorDemo", "regExpOnIntegerDemo", "removeArrayDemo", "removeArrayElement", "removeArrayElements", "removeDuplicateDocumentDemo", "removeElementFromDoublyNestedArrayDemo", "removeFieldCompletlyDemo", "removeObject", "renameFieldDemo", "reverseRegexDemo", "searchArrayDemo", "selectSingleFieldDemo", "singleFieldDemo", "sortDemo", "sortInnerArrayDemo", "sourceCollection", "stringFieldLengthDemo", "test.js", "uniqueIndexOnArrayDemo", "unwindOperatorDemo", "updateExactField", "updateIdDemo", "updateObjects" ]
Here is the second query to display all collections from Mongo. The query is as follows −
> show collections;
The following is the output −
ConvertStringToDateDemo IdUpdateDemo ProductsInformation addFieldDemo addNewFieldToEveryDocument arrayInnerElementsDemo arrayLengthGreaterThanOne arrayOfArraysDemo caseInsensitiveDemo changeDataType changeType charactersAllowedDemo charactersDemo checkFieldContainsStringDemo checkSequenceDemo combinationOfArrayDemo conditionalSumDemo convertStringToNumberDemo copyThisCollectionToSampleDatabaseDemo countDemo createSequenceDemo distinctCountValuesDemo distinctRecordDemo distinctWithMultipleKeysDemo employeeInformation filterArray findAllDuplicateKeyDocumentDemo findByMultipleArrayDemo findDuplicateByKeyDemo findDuplicateRecordsDemo findSpecificValue findValueInArrayWithMultipleCriteriaDemo getLastNRecordsDemo getParticularElementFromArrayDemo getPartuclarElement getSizeOfArray groupByDateDemo incrementValueInNestedArrayDemo insertIfNotExistsDemo nestedArrayDemo notLikeOpeartorDemo regExpOnIntegerDemo removeArrayDemo removeArrayElement removeArrayElements removeDuplicateDocumentDemo removeElementFromDoublyNestedArrayDemo removeFieldCompletlyDemo removeObject renameFieldDemo reverseRegexDemo searchArrayDemo selectSingleFieldDemo singleFieldDemo sortDemo sortInnerArrayDemo sourceCollection stringFieldLengthDemo test.js uniqueIndexOnArrayDemo unwindOperatorDemo updateExactField updateIdDemo updateObjects
Published on 29-Mar-2019 09:54:12
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