addColumn method Null safety

Future<void> addColumn(
  1. String table,
  2. String columnName,
  3. String dataType
)

Adds a column with columnName and dataType to a table in the database

Implementation

Future<void> addColumn(
    String table, String columnName, String dataType) async {
  final sql = '''
    ALTER TABLE $table ADD $columnName $dataType;
  ''';
  await db.execute(sql);
  schema[table]?.add(columnName);
}