File Extension CDX

File type: Compound Index File

About the CDX file type:

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The CDX file extension is associated with the Microsoft Visual FoxPro. Microsoft Visual FoxPro is a database object-oriented programming language. It employs objects and these objects' interactions in designing applications, reusing components across programs, and manipulating data by means of its XML support. The said programming language generates index keys every time a user creates an index. For every record in the table that is based on the supplied index expression, the index keys are stored in an index file. Index files contain and maintain pointers to the records found in the table file which were organized based on the index key values.


Detailed information for file extension CDX


Category: Data Files
File format: Proprietary
Open with Windows: Microsoft Visual FoxPro, other compatible database software
Open with Linux: N/A
Visual FoxPro is capable of supporting two kinds of index files, the compound index and standalone files. Standalone index files employ the IDX file extension. They are capable of storing single index keys which are temporary and used less often. Files with the IDX file extension could be utilized as temporary indexes when users immediately create and re-index the said files before putting them to use. On the other hand, compound index files employ the CDX file extension and are comprised of a single physical file with a number of index tags. Two kinds of files have the CDX file extension, the non-structural and structural. Frequently, the base name and the table file name of structural files with the file extension .cdx are very much the same. The said files are employed for indexes often maintained and utilized on regular intervals. Non-structural files with the CDX file extension function in the storage of multiple indexes that are not used that often. The said files frequently have names that differ from the names in the table file and are user-defined.