CDaoDatabase::Create

Статья
10/16/2008

To create a new Microsoft Jet (.MDB) database, call this member function after you construct a CDaoDatabase object.

virtual void Create( 
   LPCTSTR lpszName, 
   LPCTSTR lpszLocale = dbLangGeneral, 
   int dwOptions = 0  
);

Параметры

lpszName
A string expression that is the name of the database file that you are creating. It can be the full path and filename, such as "C:\\MYDB.MDB". You must supply a name. If you do not supply a filename extension, .MDB is appended. If your network supports the uniform naming convention (UNC), you can also specify a network path, such as "\\\\MYSERVER\\MYSHARE\\MYDIR\\MYDB". Only Microsoft Jet (.MDB) database files can be created using this member function. (Double backslashes are required in string literals because "\" is the C++ escape character.)
lpszLocale
A string expression used to specify collating order for creating the database. The default value is dbLangGeneral. Possible values are:
- dbLangGeneral English, German, French, Portuguese, Italian, and Modern Spanish
- dbLangArabic Arabic
- dbLangCyrillic Russian
- dbLangCzech Czech
- dbLangDutch Dutch
- dbLangGreek Greek
- dbLangHebrew Hebrew
- dbLangHungarian Hungarian
- dbLangIcelandic Icelandic
- dbLangNordic Nordic languages (Microsoft Jet database engine version 1.0 only)
- dbLangNorwdan Norwegian and Danish
- dbLangPolish Polish
- dbLangSpanish Traditional Spanish
- dbLangSwedfin Swedish and Finnish
- dbLangTurkish Turkish
dwOptions
An integer that indicates one or more options. Possible values are:
- dbEncrypt Create an encrypted database.
- dbVersion10 Create a database with Microsoft Jet database version 1.0.
- dbVersion11 Create a database with Microsoft Jet database version 1.1.
- dbVersion20 Create a database with Microsoft Jet database version 2.0.
- dbVersion30 Create a database with Microsoft Jet database version 3.0.
If you omit the encryption constant, an unencrypted database is created. You can specify only one version constant. If you omit a version constant, a database that uses the Microsoft Jet database version 3.0 is created.

Внимание!

If a database is not encrypted, it is possible, even if you implement user/password security, to directly read the binary disk file that constitutes the database.

Внимание!
If a database is not encrypted, it is possible, even if you implement user/password security, to directly read the binary disk file that constitutes the database.

Заметки

Create creates the database file and the underlying DAO database object and initializes the C++ object. The object is appended to the associated workspace's Databases collection. The database object is in an open state; do not call Open after Create.