Result (gb.db2)
This class represents the result of a SQL request.
属性
Available
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Returns True if the result object contains one or more accessible database rows.
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Connection
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Returns the parent connection object.
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Count
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Returns the number of rows in the query result.
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Editable
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Return if the result is editable.
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Fields
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Return a collection of all result fields.
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Index
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Returns the index of the current record, starting from zero.
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Length
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This is a synonymous for the Count property.
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Max
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Returns Result.Count - 1 (and so it returns -1 if there is no record).
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方法
All
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Return the value of the specified field of each result record as an array.
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Delete
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Deletes the current record.
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MoveFirst
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Moves to the first record of the result.
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MoveLast
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Moves to the last record of the result.
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MoveNext
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Moves to the next record of the result.
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MovePrevious
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Moves to the previous record of the result.
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MoveTo
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Moves to a specified record.
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Reset
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Undo any change done to a result created by the Create or Connection method.
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Update
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Updates the current record into the database, if this record has been modified and if the Result is a writable cursor.
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Result objects are not database cursors, but a copy of database records. And so they are not synchronized with successive database changes.
There are two types of result objects, depending on the method used for creating them.