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Database Manual

Introduction

Databases & Collections

Views

Modify a View

To modify a view, you can either:

Drop and recreate the view.
Use the collMod command.

Example

Consider the following view named lowStock:

db.createView(
   "lowStock",
   "products",
   [ { $match: { quantity: { $lte: 20 } } } ]
)

Drop and Recreate the View

The following commands modify lowStock by dropping and recreating the view:

db.lowStock.drop()
db.createView(
   "lowStock",
   "products",
   [ { $match: { quantity: { $lte: 10 } } } ]
)

Use the `collMod` Command

Alternatively, you can use the collMod command to modify the view:

db.runCommand( {
   collMod: "lowStock",
   viewOn: "products",
   "pipeline": [ { $match: { quantity: { $lte: 10 } } } ]
} )

Back

Use Default Collation

Remove

Example

Drop and Recreate the View

Use the collMod Command

Use the `collMod` Command