IDBDatabase.deleteObjectStore

As with IDBDatabase.createObjectStore, this method can be called only within a versionchange transaction.

Syntax

db.deleteObjectStore("toDoList");

Returns

Void.

Exceptions

This method may raise a DOMException of one of the following types:

Exception	Description
InvalidStateError	Occurs if the method was not called from a versionchange transaction callback. For older WebKit browsers, you must call first.
TransactionInactiveError	Occurs if a request is made on a source database that doesn't exist (e.g. has been deleted or removed.) In Firefox previous to version 41, an InvalidStateError was raised in this case as well, which was misleading; this has now been fixed (see bug 1176165.)
NotFoundError	You are trying to delete an object store that does not exist. Names are case sensitive.

Example

In this example we open a database then, in the onupdateneeded event handler, create a new object store using IDBDatabase.createObjectStore. At the end of the block we then delete that object store again using deleteObjectStore().

  // Let us open our database
  var DBOpenRequest = window.indexedDB.open("toDoList", 4);
 
  // This event handles the event whereby a new version of the database needs to be created
  // Either one has not been created before, or a new version number has been submitted via the
  // window.indexedDB.open line above
  //it is only implemented in recent browsers
  DBOpenRequest.onupgradeneeded = function(event) {
    var db = event.target.result;
    
    db.onerror = function(event) {
      note.innerHTML += '<li>Error loading database.</li>';
    };

    // Create an objectStore for this database
    
    var objectStore = db.createObjectStore("toDoList", { keyPath: "taskTitle" });
    
    // define what data items the objectStore will contain
    
    objectStore.createIndex("hours", "hours", { unique: false });
    objectStore.createIndex("minutes", "minutes", { unique: false });
    objectStore.createIndex("day", "day", { unique: false });
    objectStore.createIndex("month", "month", { unique: false });
    objectStore.createIndex("year", "year", { unique: false });

    objectStore.createIndex("notified", "notified", { unique: false });
    
    note.innerHTML += '<li>Object store created.</li>';

    // Delete the object store again!

    db.deleteObjectStore("toDoList");
  };

Parameters

name

The name of the data store to delete.

Specification

Specification	Status	Comment
Indexed Database API The definition of 'deleteObjectStore()' in that specification.	Recommendation

Browser compatibility

See also

• Using IndexedDB
• Starting transactions: IDBDatabase
• Using transactions: IDBTransaction
• Setting a range of keys: IDBKeyRange
• Retrieving and making changes to your data: IDBObjectStore
• Using cursors: IDBCursor
• Reference example: To-do Notifications (view example live.)