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- Overview
- Configuring the data files (in the data model editor)
- Using data files exceeding 2 gigabytes
- Dynamic description of data files
- WLanguage property
- Reindexing
HFSQL data files exceeding 2 gigabytes
By default, the HFSQL engine allows you to manage large data files (up to 2 gigabytes). When the size of a data file (including its index, its full-text index and/or its memo) exceeds 2 gigabytes, a specific configuration is required in the data model editor and in the hardware. Indeed, to manage data files exceeding 2 gigabytes, you must use: - an operating system that handles files larger than 4 Gigabytes. The following systems do not support files larger than 4 Giga: Windows 98 and Windows Me.
- A file system that supports the files exceeding 4 gigabytes (NTFS for example in Windows).
Attention: This configuration is necessary both on the workstation where the data files are installed and on workstations accessing these data files.. Therefore, a computer equipped with Windows 98 cannot access a data file exceeding 2 gigabyte installed on Windows 2000. Configuring the data files (in the data model editor) To manage the data files exceeding 2 gigabytes: - Display the description of the desired data file ("Data file description" option in the context menu).
- On the "Compatibility" tab, check "Support files larger than 2 GB (recommended for operating systems later than Windows 2000 or Linux Ext2)".
- Confirm.
Warning These data files can only be used from a workstation running an operating system that supports files larger than 4 Giga. Using data files exceeding 2 gigabytes Dynamic description of data files During the dynamic description of a data file (via the HFSQL properties and HDescribeFile), the management mode of the file size can be configured by HugeFile. WLanguage property | | | HugeFile | The HugeFile property sets the maximum possible size of a data file. |
Reindexing Caution: Re-indexing data files over 2 Gigabytes in size can take a long time.
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