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Creates a new index for the table. procedure AddIndex(const Name, Fields: String; Options: TIndexOptions;const DescFields: String=''; const CaseInsFields: String=''); Description Call AddIndex to create a new index for an existing table associated with a dataset component. The index created with this procedure is added to the database table corresponding to the dataset component. Name is the name of a new index. Fields is a String value containing the field or fields which are used to serve as a base for the new index. If more than one field is used, separate the field names in the list with semi-colons. Options is a set of attributes for the index. The Options parameter may contain any, multiple, or none of the TIndexOptions constants: ixPrimary, ixDescending, and ixCaseInsensitive. See the topic for the TIndexOptions type for definitions of individual constants and for implications of using them. DescFields is a string containing a list of field names, separated by semi-colons. DescFields specifies fields with descending ordering for the new index. Fields in the index definition but not in the DescFields list use the default ascending ordering. It is possible that a single index can have fields using both ascending and descending ordering. CaseInsFields is a string containing a list of field names, separated by semi-colons. CaseInsFields specifies case insensitive fields for the new index. Fields in the index definition but not in the CaseInsFields list use the default case sensivity option. It is possible that a single index can have fields using both case sensitive and case insensitive options. ABSTable1.AddIndex('MostPaid', 'CustNo;SaleDate;AmountPaid', [ixCaseInsensitive], 'SaleDate;AmountPaid'); |
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