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DF_DATABASE_INDEX_DESC

Can be used to set up support for the Desc/Descending keyword when creating an index.

Level

Database

Supported by

DataFlex ODBC Driver, revision 5 and higher

Type

Boolean, temporary

Access

Read/Write

Values

  • True
  • False

Syntax

Use cli.pkg
Get_Attribute DF_DATABASE_INDEX_DESC of {driverNumber} {databaseHandle} to {BooleanVariable}
Set_Attribute DF_DATABASE_INDEX_DESC of {driverNumber} {databaseHandle} to {True|False}

Driver Configuration Keyword

Index_Desc

Remarks

Some ODBC drivers do not accurately report capabilities. A number of settings have been created to correct that problem. If a driver reports that it supports a feature it really does not support (or vice versa), errors can occur.

The DF_DATABASE_INDEX_DESC attribute can be used to set up support for the Desc/Descending keyword when creating an index. The actual segment direction can be set using the DF_INDEX_SEGMENT_DIRECTION attribute.

Example

Procedure ShowDBAttribute Integer iDriver Handle hDatabase
    Boolean bAttribValue
    Get_Attribute DF_DATABASE_INDEX_DESC of iDriver hDatabase to bAttribValue
    Showln "Support for Descending: " (If(bAttribValue, "YES", "NO"))
End_Procedure

The sample code above shows the current setting for a given database. The database handle can be obtained via the DF_DATABASE_ID attribute.