method DatabaseSync.prototype.applyChangeset

#DatabaseSync.prototype.applyChangeset(changeset: Uint8Array,
options?: ApplyChangesetOptions,
): boolean

An exception is thrown if the database is not open. This method is a wrapper around sqlite3changeset_apply().

const sourceDb = new DatabaseSync(':memory:');
const targetDb = new DatabaseSync(':memory:');

sourceDb.exec('CREATE TABLE data(key INTEGER PRIMARY KEY, value TEXT)');
targetDb.exec('CREATE TABLE data(key INTEGER PRIMARY KEY, value TEXT)');

const session = sourceDb.createSession();

const insert = sourceDb.prepare('INSERT INTO data (key, value) VALUES (?, ?)');
insert.run(1, 'hello');
insert.run(2, 'world');

const changeset = session.changeset();
targetDb.applyChangeset(changeset);
// Now that the changeset has been applied, targetDb contains the same data as sourceDb.

Parameters #

#changeset: Uint8Array

A binary changeset or patchset.

#options: ApplyChangesetOptions

optional

The configuration options for how the changes will be applied.

Return Type #

boolean

Whether the changeset was applied succesfully without being aborted.