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Define and Delete Fields in an NDB

An NDB has no predefined fields. All fields must be defined once before they can be used. This is normally done by the Database Administrator when the NDB is defined.

Field definitions can be added or deleted at any time, even while other users are accessing the NDB, although you might not want to do this.

The names and attributes of defined fields can be obtained by using the &NDBINFO verb.

More information:

Alter Field Definitions in an NDB

Obtain Information About an NDB