IBCustomDataSet

A value of a string field is physically stored as a sequence of characters. Common uses for string fields are to store text, such as names and addresses. 

TIBStringField introduces properties to translate between string values and other data types, and to manage language driver conversions. As a descendent of TStringField, TIBStringField inherits many properties, methods, and events that are useful for managing the value and properties of a field in a database. TIBStringField allows for strings in excess of 8196 bytes of data.