Db::get_type()
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## Db::get_type()

    #include <db_cxx.h>

    int
    Db::get_type(DBTYPE *type);

The `Db::get_type()` method returns the type of the underlying access method (and file format). The type value is one of DB_BTREE, DB_HASH, DB_RECNO, or DB_QUEUE. This value may be used to determine the type of the database after a return from Db::open() with the type parameter set to DB_UNKNOWN.

The `Db::get_type()` method may not be called before the Db::open() method is called.

The `Db::get_type()` method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.

### Parameters

#### type

The type parameter references memory into which the type of the underlying access method is copied.

### Errors

The `Db::get_type()` method may fail and throw a DbException exception, encapsulating one of the following non-zero errors, or return one of the following non-zero errors:

#### EINVAL

If the method was called before Db::open() was called; or if an invalid flag value or parameter was specified.

### Class

Db

### See Also

Database and Related Methods

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