Wernfried

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    1 comment  ·  Database » Query and Aggregation Pipeline  ·  Flag idea as inappropriate…  ·  Admin →

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    Wernfried commented  · 

    If you like to have Monday as first day of week, then simply use '$isoDayOfWeek'

    https://www.mongodb.com/docs/v5.0/reference/operator/aggregation/isoDayOfWeek/

  3. 6 votes

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  4. 15 votes

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  5. 24 votes

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    started  ·  2 comments  ·  MongoDB Shell » Commands  ·  Flag idea as inappropriate…  ·  Admin →

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    Wernfried commented  · 

    Most of these terms are deprecated and exist only for backward compatibility. For example 'db.isMaster()' is already replaced by 'db.hello()isWritablePrimary' or 'slaveDelay' became 'secondaryDelaySecs'

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  8. 3 votes

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  9. 5 votes

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    under review  ·  2 comments  ·  MongoDB Shell » Commands  ·  Flag idea as inappropriate…  ·  Admin →

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    Wernfried commented  · 

    Can be done with a single command:

    db.exists() -> db.adminCommand( { listDatabases: 1 , filter: { name: 'db' } } ).databases.length > 0

    and

    collections.exists() -> db.getCollectionNames().includes('collections')

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