@SuppressWarnings("unchecked")
public void setDataType(int jdbcType, int scale, int precision, int width, NSDictionary options) throws SQLException {
JDBCAdaptor adaptor = (JDBCAdaptor) _table.database().adaptor();
String externalType = ERXSQLHelper.newSQLHelper(adaptor).externalTypeForJDBCType(adaptor, jdbcType);
EOSchemaSynchronization schemaSynchronization = _table.database().synchronizationFactory();
NSArray<EOSQLExpression> expressions = schemaSynchronization.statementsToConvertColumnType(_name, _table.name(), null, new _ColumnType(externalType, scale, precision, width), options);
ERXMigrationDatabase._ensureNotEmpty(expressions, "convert column type", true);
ERXJDBCUtilities.executeUpdateScript(_table.database().adaptorChannel(), ERXMigrationDatabase._stringsForExpressions(expressions));
_jdbcType = jdbcType;
_scale = scale;
_precision = precision;