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Stored procedures
Deletes all the documents (corresponding to the specified filter) from a collection of a MongoDB database.
Example
sFilter is string
sFilter = "{ ""name"": ""Andy"" }"
MongoDeleteAll(CollectMDB, sFilter)
// Deletes all the contacts whose "FirstName" member is "Robert"

// Search filter
sFilter is string = "{ ""FirstName"": ""Robert"" } "

MongoDeleteAll(gclCollection, sFilter)
Syntax
<Result> = MongoDeleteAll(<Collection> , <Filter>)
<Result>: Boolean
  • True if the operation was performed,
  • False if a problem occurred. 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 documents 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.
Related Examples:
Native access to MongoDB 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.
Components
WINDEVWEBDEV - Server codeReports and Queries wd230big.dll
Minimum required version
  • Version 22
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