# Module parameter for database access.

## `db_url` (String)

URL to the database containing the data.

Default value is &defaultrodb;.

### Set `db_url` parameter

    ...
    modparam("matrix", "db_url", "dbdriver://username:password@dbhost/dbname")
    ...

## `matrix_table` (String)

Name of the matrix table for the matrix module.

Default value is matrix.

### Set `matrix_table` parameter

    ...
    modparam("matrix", "matrix_table", "matrix")
    ...

## `matrix_first_col` (string)

The row index in the matrix

### Set `matrix_first_col` parameter

    ...
    modparam("matrix", "matrix_first_col", "first")
    ...

## `matrix_second_col` (string)

The column index in the matrix

### Set `matrix_second_col` parameter

    ...
    modparam("matrix", "matrix_second_col", "second")
    ...

## `matrix_res_col` (string)

The resource contained in the matrix

### Set `matrix_res_col` parameter

    ...
    modparam("matrix", "matrix_res_col", "res")
    ...