MongoDeleteOne (Function)

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MongoDeleteOne (Function)

In french: MongoSupprimeUn

Deletes a document from a collection in a MongoDB database.

Versions 24 and later

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

New in version 24

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

Example

let sFilter = "{ ""name"": ""Andy"" }"
let sSort = "{ ""rating"": 1 }"
let d = MongoDeleteOne(MyCollection, sFilter, sSort)

// Delete the first contact whose "FirstName" member is set to "Joey"
// Search filter
sFilter is string = "{ ""FirstName"": ""Joey"" }"
MongoDeleteOne(gclCollection, sFilter)

Syntax

<Result> = MongoDeleteOne(<Collection> , <Filter> [, <Sort>])

<Result>: Variant

Deleted document.
If a problem occurs, ErrorInfo is used to identify the error.

<Collection>: mongoCollection variable

Name of mongoCollection variable representing the collection of MongoDB database from which the deletion is performed.

<Filter>: Type corresponding to the filter used

Description of filters in MongoDB format that will be applied to select the document to delete. This filter corresponds to:
a document in JSON format, in character string format.
a document in BSON format, in buffer format.
a variant.

<Sort>: Optional type corresponding to the format used

Sort options used to define the first document that will be deleted when several documents correspond to the filter. Corresponds to:
a document in JSON format, in character string format.
a document in BSON format, in buffer format.
a variant.

Related Examples:

Unit examples (WINDEV): Native access to MongoDB

[ + ] This example shows how to use the main functions of native access to MongoDB databases: adding data, reading (searching), modifying and deleting data in the database. The example also shows functions for saving files in the MongoDB GridFS data system.

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