RAD Studio VCL Reference
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TIBXSQLVAR.IsNullable Property
TIBXSQLVAR Class | TIBXSQLVAR Members | IBSQL Namespace | Description
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Indicates whether the field can have a value assigned to it.

Pascal
property IsNullable: Boolean;
C++
__property Boolean IsNullable;
Description

Use the IsNullable property to determine if the field can contain a value. If IsNullable is true, the field can contain a value. If IsNullable is false, the field cannot contain a value. 

 

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