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SDB_AT - Data access type

Enumarators overview

  • AT_BIN (3) - Flat file
  • AT_CODE (2) - Instance stored in an enumeration collection
  • AT_DIR (5) - Directory access
  • AT_ESDF (7) - Extended self delimiter file
  • AT_NONE (0) - Instances not stored in a database
  • AT_ODABA (1) - Instances stored in an ODABA database
  • AT_VIEW (8) - ODABA view
  • AT_XML (10) - XML file format
  • AT_unknown (-1) - Access type unknown

Enumerator details

  1. AT_unknown - Access type unknown
    Code: -1
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  2. AT_NONE - Instances not stored in a database

    When this option is set, no database access is provided for instances in the collection.

    Code: 0
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  3. AT_ODABA - Instances stored in an ODABA database

    This is the default for persistent structures defined in ODABA. Usually, collections and structures defined in an ODABA dictionary do have this access type.

    Code: 1
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  4. AT_CODE - Instance stored in an enumeration collection

    Instances for an enumeration are stored in an enumeration collection, which is part of the dictionary and not of the database.

    Code: 2
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  5. AT_BIN - Flat file

    Instances are stored in a flat file with a fixed structure. Instances may contain numeric or text data according to the definition. Access to binary files is supported by the OBINA.DLL.

    Code: 3
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  6. AT_DIR - Directory access

    Directory access allows directly reading file directory structures via ODABA property handle.

    Code: 5
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  7. AT_ESDF - Extended self delimiter file

    This ASCII formats an extension of the CSV (comma separated file) format, which allows importing or exporting instances and related collections as well as complex attributes or base structures.

    Code: 7
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  8. AT_VIEW - ODABA view

    This format refers to transient predefined ODABA views, which can be accesses in the same way as other data.

    Code: 8
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  9. AT_XML - XML file format

    The xml format is an ODABA extension provided in order to access external xml data files in an ODABA compliant way.

    Code: 10
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